From eb492f27d05536fe4485abf457bbddd7a57a4559 Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Thu, 17 Jan 2019 17:52:00 +0100
Subject: [PATCH 01/33] upgrade the deps and remove all the warnings

---
 lib/segment/http.ex |  7 +++----
 mix.exs             | 13 +++++++------
 mix.lock            | 24 +++++++++++++++---------
 3 files changed, 25 insertions(+), 19 deletions(-)

diff --git a/lib/segment/http.ex b/lib/segment/http.ex
index 5568bc1..24ec5f4 100644
--- a/lib/segment/http.ex
+++ b/lib/segment/http.ex
@@ -8,19 +8,18 @@ defmodule Segment.Analytics.Http do
   end
 
   def post(url, body, headers, options \\ []) do
-    options_with_auth =
-      Keyword.merge(options, [hackney: [basic_auth: {Segment.write_key(), ""}]])
+    options_with_auth = Keyword.merge(options, hackney: [basic_auth: {Segment.write_key(), ""}])
 
     request(:post, url, body, headers, options_with_auth)
   end
 
   def process_options(options) do
-    Keyword.put(options, :basic_auth, {Segment.write_key(),""})
+    Keyword.put(options, :basic_auth, {Segment.write_key(), ""})
   end
 
   def process_request_headers(headers) do
     headers
     |> Keyword.put(:"Content-Type", "application/json")
-    |> Keyword.put(:"accept", "application/json")
+    |> Keyword.put(:accept, "application/json")
   end
 end
diff --git a/mix.exs b/mix.exs
index a9b52fd..8f977fd 100644
--- a/mix.exs
+++ b/mix.exs
@@ -8,7 +8,7 @@ defmodule AnalyticsElixir.Mixfile do
       elixir: "~> 1.0",
       deps: deps(),
       description: "analytics_elixir",
-      package: package(),
+      package: package()
     ]
   end
 
@@ -30,18 +30,19 @@ defmodule AnalyticsElixir.Mixfile do
   # Type `mix help deps` for more examples and options
   defp deps do
     [
-      {:httpoison, "~> 0.12"},
-      {:poison, "~> 1.3 or ~> 2.0 or ~> 3.1.0"},
-      {:ex_doc, ">= 0.0.0", only: :dev}
+      {:httpoison, "~> 1.4"},
+      {:poison, "~> 4.0"},
+      {:ex_doc, "~> 0.19", only: :dev, runtime: false}
     ]
   end
 
   defp package do
-    [ # These are the default files included in the package
+    # These are the default files included in the package
+    [
       files: ["lib", "mix.exs", "README*", "LICENSE*"],
       maintainers: ["Stuart Eccles"],
       licenses: ["MIT"],
-      links: %{ "GitHub" => "https://github.com/stueccles/analytics-elixir" }
+      links: %{"GitHub" => "https://github.com/stueccles/analytics-elixir"}
     ]
   end
 end
diff --git a/mix.lock b/mix.lock
index 527a8ff..ad6268a 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,11 +1,17 @@
-%{"certifi": {:hex, :certifi, "1.2.1", "c3904f192bd5284e5b13f20db3ceac9626e14eeacfbb492e19583cf0e37b22be", [:rebar3], []},
-  "earmark": {:hex, :earmark, "1.0.2", "a0b0904d74ecc14da8bd2e6e0248e1a409a2bc91aade75fcf428125603de3853", [:mix], []},
-  "ex_doc": {:hex, :ex_doc, "0.14.3", "e61cec6cf9731d7d23d254266ab06ac1decbb7651c3d1568402ec535d387b6f7", [:mix], [{:earmark, "~> 1.0", [hex: :earmark, optional: false]}]},
-  "hackney": {:hex, :hackney, "1.8.6", "21a725db3569b3fb11a6af17d5c5f654052ce9624219f1317e8639183de4a423", [:rebar3], [{:certifi, "1.2.1", [hex: :certifi, optional: false]}, {:idna, "5.0.2", [hex: :idna, optional: false]}, {:metrics, "1.0.1", [hex: :metrics, optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, optional: false]}, {:ssl_verify_fun, "1.1.1", [hex: :ssl_verify_fun, optional: false]}]},
-  "httpoison": {:hex, :httpoison, "0.12.0", "8fc3d791c5afe6beb0093680c667dd4ce712a49d89c38c3fe1a43100dd76cf90", [:mix], [{:hackney, "~> 1.8.0", [hex: :hackney, optional: false]}]},
-  "idna": {:hex, :idna, "5.0.2", "ac203208ada855d95dc591a764b6e87259cb0e2a364218f215ad662daa8cd6b4", [:rebar3], [{:unicode_util_compat, "0.2.0", [hex: :unicode_util_compat, optional: false]}]},
+%{
+  "certifi": {:hex, :certifi, "2.4.2", "75424ff0f3baaccfd34b1214184b6ef616d89e420b258bb0a5ea7d7bc628f7f0", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
+  "earmark": {:hex, :earmark, "1.3.1", "73812f447f7a42358d3ba79283cfa3075a7580a3a2ed457616d6517ac3738cb9", [:mix], [], "hexpm"},
+  "ex_doc": {:hex, :ex_doc, "0.19.2", "6f4081ccd9ed081b6dc0bd5af97a41e87f5554de469e7d76025fba535180565f", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
+  "hackney": {:hex, :hackney, "1.15.0", "287a5d2304d516f63e56c469511c42b016423bcb167e61b611f6bad47e3ca60e", [:rebar3], [{:certifi, "2.4.2", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "6.0.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.4", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
+  "httpoison": {:hex, :httpoison, "1.5.0", "71ae9f304bdf7f00e9cd1823f275c955bdfc68282bc5eb5c85c3a9ade865d68e", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
+  "idna": {:hex, :idna, "6.0.0", "689c46cbcdf3524c44d5f3dde8001f364cd7608a99556d8fbd8239a5798d4c10", [:rebar3], [{:unicode_util_compat, "0.4.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
+  "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], []},
-  "poison": {:hex, :poison, "1.5.2", "560bdfb7449e3ddd23a096929fb9fc2122f709bcc758b2d5d5a5c7d0ea848910", [:mix], []},
-  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.1", "28a4d65b7f59893bc2c7de786dec1e1555bd742d336043fe644ae956c3497fbe", [:make, :rebar], []},
-  "unicode_util_compat": {:hex, :unicode_util_compat, "0.2.0", "dbbccf6781821b1c0701845eaf966c9b6d83d7c3bfc65ca2b78b88b8678bfa35", [:rebar3], []}}
+  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm"},
+  "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm"},
+  "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
+  "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
+}

From 730d9f504a5d5c248ccb3e029200dfcc2cde61d5 Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Thu, 17 Jan 2019 19:46:05 +0100
Subject: [PATCH 02/33] formatting

---
 lib/segment/analytics.ex |  56 +++++++--------
 lib/segment/model.ex     | 145 ++++++++++++++++++---------------------
 2 files changed, 92 insertions(+), 109 deletions(-)

diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index 5238c90..69413d1 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -8,11 +8,13 @@ defmodule Segment.Analytics do
     call(t)
   end
 
-  def track(user_id, event, properties \\ %{}, context \\ Context.new) do
-    %Segment.Analytics.Track{ userId: user_id,
-                              event: event,
-                              properties: properties,
-                              context: context }
+  def track(user_id, event, properties \\ %{}, context \\ Context.new()) do
+    %Segment.Analytics.Track{
+      userId: user_id,
+      event: event,
+      properties: properties,
+      context: context
+    }
     |> call
   end
 
@@ -20,10 +22,8 @@ defmodule Segment.Analytics do
     call(i)
   end
 
-  def identify(user_id, traits \\ %{}, context \\ Context.new) do
-    %Segment.Analytics.Identify{  userId: user_id,
-                                      traits: traits,
-                                      context: context }
+  def identify(user_id, traits \\ %{}, context \\ Context.new()) do
+    %Segment.Analytics.Identify{userId: user_id, traits: traits, context: context}
     |> call
   end
 
@@ -31,11 +31,13 @@ defmodule Segment.Analytics do
     call(s)
   end
 
-  def screen(user_id, name \\ "", properties \\ %{}, context \\ Context.new ) do
-    %Segment.Analytics.Screen{  userId: user_id,
-                                    name: name,
-                                    properties: properties,
-                                    context: context }
+  def screen(user_id, name \\ "", properties \\ %{}, context \\ Context.new()) do
+    %Segment.Analytics.Screen{
+      userId: user_id,
+      name: name,
+      properties: properties,
+      context: context
+    }
     |> call
   end
 
@@ -43,10 +45,8 @@ defmodule Segment.Analytics do
     call(a)
   end
 
-  def alias(user_id, previous_id, context \\ Context.new) do
-    %Segment.Analytics.Alias{ userId: user_id,
-                                  previousId: previous_id,
-                                  context: context }
+  def alias(user_id, previous_id, context \\ Context.new()) do
+    %Segment.Analytics.Alias{userId: user_id, previousId: previous_id, context: context}
     |> call
   end
 
@@ -54,11 +54,8 @@ defmodule Segment.Analytics do
     call(g)
   end
 
-  def group(user_id, group_id, traits \\ %{}, context \\ Context.new) do
-    %Segment.Analytics.Group{ userId: user_id,
-                                  groupId: group_id,
-                                  traits: traits,
-                                  context: context }
+  def group(user_id, group_id, traits \\ %{}, context \\ Context.new()) do
+    %Segment.Analytics.Group{userId: user_id, groupId: group_id, traits: traits, context: context}
     |> call
   end
 
@@ -66,11 +63,8 @@ defmodule Segment.Analytics do
     call(p)
   end
 
-  def page(user_id, name \\ "", properties \\ %{}, context \\ Context.new ) do
-    %Segment.Analytics.Page{  userId: user_id,
-                                  name: name,
-                                  properties: properties,
-                                  context: context }
+  def page(user_id, name \\ "", properties \\ %{}, context \\ Context.new()) do
+    %Segment.Analytics.Page{userId: user_id, name: name, properties: properties, context: context}
     |> call
   end
 
@@ -84,17 +78,17 @@ defmodule Segment.Analytics do
   end
 
   defp log_result({_, %{status_code: code}}, function, body) when code in 200..299 do
-    #success
+    # success
     Logger.debug("Segment #{function} call success: #{code} with body: #{body}")
   end
 
   defp log_result({_, %{status_code: code}}, function, body) do
-    #HTTP failure
+    # HTTP failure
     Logger.debug("Segment #{function} call failed: #{code} with body: #{body}")
   end
 
   defp log_result(error, function, body) do
-    #every other failure
+    # every other failure
     Logger.debug("Segment #{function} call failed: #{inspect(error)} with body: #{body}")
   end
 end
diff --git a/lib/segment/model.ex b/lib/segment/model.ex
index 3d6bb73..c003cfb 100644
--- a/lib/segment/model.ex
+++ b/lib/segment/model.ex
@@ -2,89 +2,78 @@ defmodule Segment.Analytics.Track do
   @derive [Poison.Encoder]
   @method "track"
 
-  defstruct [ :userId,
-              :event,
-              :properties,
-              :context,
-              :timestamp,
-              :integrations,
-              :anonymousId,
-              method: @method
-            ]
-
+  defstruct [
+    :userId,
+    :event,
+    :properties,
+    :context,
+    :timestamp,
+    :integrations,
+    :anonymousId,
+    method: @method
+  ]
 end
 
 defmodule Segment.Analytics.Identify do
   @derive [Poison.Encoder]
   @method "identify"
 
-  defstruct [ :userId,
-              :traits,
-              :context,
-              :timestamp,
-              :integrations,
-              :anonymousId,
-              method: @method
-            ]
+  defstruct [:userId, :traits, :context, :timestamp, :integrations, :anonymousId, method: @method]
 end
 
 defmodule Segment.Analytics.Alias do
   @derive [Poison.Encoder]
   @method "alias"
 
-  defstruct [ :userId,
-              :previousId,
-              :context,
-              :timestamp,
-              :integrations,
-              method: @method
-            ]
-
+  defstruct [:userId, :previousId, :context, :timestamp, :integrations, method: @method]
 end
 
 defmodule Segment.Analytics.Page do
   @derive [Poison.Encoder]
   @method "page"
 
-  defstruct [ :userId,
-              :name,
-              :properties,
-              :context,
-              :timestamp,
-              :integrations,
-              :anonymousId,
-              method: @method]
-
+  defstruct [
+    :userId,
+    :name,
+    :properties,
+    :context,
+    :timestamp,
+    :integrations,
+    :anonymousId,
+    method: @method
+  ]
 end
 
 defmodule Segment.Analytics.Screen do
   @derive [Poison.Encoder]
   @method "screen"
 
-  defstruct [ :userId,
-              :name,
-              :properties,
-              :context,
-              :timestamp,
-              :integrations,
-              :anonymousId,
-              method: @method
-            ]
+  defstruct [
+    :userId,
+    :name,
+    :properties,
+    :context,
+    :timestamp,
+    :integrations,
+    :anonymousId,
+    method: @method
+  ]
 end
 
 defmodule Segment.Analytics.Group do
   @derive [Poison.Encoder]
   @method "group"
 
-  defstruct [ :userId,
-              :groupId,
-              :traits,
-              :context,
-              :timestamp,
-              :integrations,
-              :anonymousId,
-              method: @method
-            ]
+  defstruct [
+    :userId,
+    :groupId,
+    :traits,
+    :context,
+    :timestamp,
+    :integrations,
+    :anonymousId,
+    method: @method
+  ]
 end
 
 defmodule Segment.Analytics.Context do
@@ -92,29 +81,29 @@ defmodule Segment.Analytics.Context do
   @library_name Mix.Project.get().project[:description]
   @library_version Mix.Project.get().project[:version]
 
-  defstruct [ :app,
-              :campaign,
-              :device,
-              :ip,
-              :library,
-              :locale,
-              :location,
-              :network,
-              :os,
-              :page,
-              :referrer,
-              :screen,
-              :timezone,
-              :traits,
-              :userAgent
-            ]
-
-    def update(context = %__MODULE__{}) do
-      %{context | library: %{name: @library_name, version: @library_version}}
-    end
-
-    def new do
-      update(%__MODULE__{})
-    end
-
+  defstruct [
+    :app,
+    :campaign,
+    :device,
+    :ip,
+    :library,
+    :locale,
+    :location,
+    :network,
+    :os,
+    :page,
+    :referrer,
+    :screen,
+    :timezone,
+    :traits,
+    :userAgent
+  ]
+
+  def update(context = %__MODULE__{}) do
+    %{context | library: %{name: @library_name, version: @library_version}}
+  end
+
+  def new do
+    update(%__MODULE__{})
+  end
 end

From e311fcf85d9431a20681212e13a1f4120af0d49c Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Mon, 21 Jan 2019 14:21:07 +0100
Subject: [PATCH 03/33] make the endpoint configurable (#1)

* make the endpoint configurable

* update the doc

* include the Agent in the segment module
---
 README.md             | 14 ++++++++++----
 lib/segment.ex        | 40 +++++++++++++++++++++++++++++++++++-----
 lib/segment/http.ex   |  8 +++-----
 test/segment_test.exs |  4 +++-
 4 files changed, 51 insertions(+), 15 deletions(-)

diff --git a/README.md b/README.md
index 2b75eda..5789bb3 100644
--- a/README.md
+++ b/README.md
@@ -11,9 +11,10 @@ and then `mix deps.get`
 
 ## Usage
 
-Start the Segment agent with your write_key from Segment
+Start the Segment agent with your write_key from Segment, and the endpoint.
+The __endpoint__ is optional and if omitted, it defaults to `https://api.segment.io/v1/`.
 ```
-Segment.start_link("YOUR_WRITE_KEY")
+Segment.start_link("YOUR_SEGMENT_KEY", "https://example.com/v1")
 ```
 There are then two ways to call the different methods on the API.
 A basic way through `Segment.Analytics` or by passing a full Struct
@@ -25,6 +26,7 @@ This is how I add to a Phoenix project (may not be your preferred way)
 
 1. Add the following to deps section of your mix.exs: `{:segment, github: "stueccles/analytics-elixir"}`
    and then `mix deps.get`
+
 2. Add segment to applications list in the Phoenix project mix.exs
 ie.
 ```
@@ -34,16 +36,20 @@ def application do
                   :phoenix_ecto, :postgrex, :segment]]
 end
 ```
+
 3. Add a config variable for your write_key (may want to make this environment dependent)
 ie.
 ```
 config :segment,
-  write_key: "2iFFnRsCfi"
+  key: "your_segment_key",
+  endpoint: "https://api.segment.io/v1/"
 ```
+The __endpoint__ is optional (as specified in the Usage section above).
+
 4. Start the segment agent as a child of the application in the application file under
 the lib directory. In the children list add:
 ```
-worker(Segment, [Application.get_env(:segment, :write_key)])
+{Segment, [Application.get_env(:segment, :key), Application.get_env(:segment, :endpoint)]}
 ```
 
 ### Track
diff --git a/lib/segment.ex b/lib/segment.ex
index f988d1f..74a498a 100644
--- a/lib/segment.ex
+++ b/lib/segment.ex
@@ -1,14 +1,44 @@
 defmodule Segment do
+  use Agent
 
   @type status :: :ok | :error
 
-  @spec start_link(binary) :: { Segment.status, pid }
-  def start_link(write_key) do
-    Agent.start_link(fn -> write_key end, name: __MODULE__)
+  @default_endpoint "https://api.segment.io/v1/"
+
+  @spec start_link(String.t(), String.t()) :: {Segment.status(), pid}
+  def start_link(key, endpoint \\ @default_endpoint) do
+    Agent.start_link(fn -> %{endpoint: endpoint, key: key} end, name: __MODULE__)
   end
 
-  def write_key() do
-    Agent.get(__MODULE__, fn(state) -> state end)
+  @doc """
+  Returns the segment key
+
+  ## Examples
+
+    iex> Segment.start_link("key")
+    ...> Segment.key()
+    "key"
+
+  """
+  def key() do
+    Agent.get(__MODULE__, &Map.get(&1, :key))
   end
 
+  @doc """
+  Returns the segment endpoint
+
+  ## Examples
+
+    iex> Segment.start_link("key")
+    ...> Segment.endpoint()
+    "https://api.segment.io/v1/"
+
+    iex> Segment.start_link("key", "https://example.com")
+    ...> Segment.endpoint()
+    "https://example.com"
+
+  """
+  def endpoint() do
+    Agent.get(__MODULE__, &Map.get(&1, :endpoint))
+  end
 end
diff --git a/lib/segment/http.ex b/lib/segment/http.ex
index 24ec5f4..d935c67 100644
--- a/lib/segment/http.ex
+++ b/lib/segment/http.ex
@@ -1,20 +1,18 @@
 defmodule Segment.Analytics.Http do
   use HTTPoison.Base
 
-  @base_url "https://api.segment.io/v1/"
-
   def process_url(url) do
-    @base_url <> url
+    Segment.endpoint() <> url
   end
 
   def post(url, body, headers, options \\ []) do
-    options_with_auth = Keyword.merge(options, hackney: [basic_auth: {Segment.write_key(), ""}])
+    options_with_auth = Keyword.merge(options, hackney: [basic_auth: {Segment.key(), ""}])
 
     request(:post, url, body, headers, options_with_auth)
   end
 
   def process_options(options) do
-    Keyword.put(options, :basic_auth, {Segment.write_key(), ""})
+    Keyword.put(options, :basic_auth, {Segment.key(), ""})
   end
 
   def process_request_headers(headers) do
diff --git a/test/segment_test.exs b/test/segment_test.exs
index 63781e7..c8b213e 100644
--- a/test/segment_test.exs
+++ b/test/segment_test.exs
@@ -1,11 +1,13 @@
 defmodule SegmentTest do
   use ExUnit.Case
 
+  doctest Segment
+
   @segment_test_key System.get_env("SEGMENT_KEY")
 
   test "track debugging" do
     Segment.start_link(@segment_test_key)
-    t = Segment.Analytics.track("343434", "track debugging #{elem(:os.timestamp,2)}")
+    t = Segment.Analytics.track("343434", "track debugging #{elem(:os.timestamp(), 2)}")
     Task.await(t)
   end
 end

From 040b55c70a82ced0077b6baa4d9fb7dc36987483 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Wed, 23 Jan 2019 16:03:34 +0100
Subject: [PATCH 04/33] add the child specification (#2)

---
 lib/segment.ex | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/lib/segment.ex b/lib/segment.ex
index 74a498a..c5ef88c 100644
--- a/lib/segment.ex
+++ b/lib/segment.ex
@@ -10,6 +10,39 @@ defmodule Segment do
     Agent.start_link(fn -> %{endpoint: endpoint, key: key} end, name: __MODULE__)
   end
 
+  @doc """
+  The child specifications
+
+  ## Examples
+
+    iex> Segment.child_spec([key: "something"])
+    %{
+      id: Segment,
+      start: {Segment, :start_link, ["something", nil]}
+    }
+
+    iex> Segment.child_spec([])
+    ** (KeyError) key :key not found in: []
+
+    iex> Segment.child_spec([key: "something", endpoint: "http://example.com"])
+    %{
+      id: Segment,
+      start: {Segment, :start_link, ["something", "http://example.com"]}
+    }
+
+  """
+  def child_spec(arg) do
+    opts = [
+      Keyword.fetch!(arg, :key),
+      Keyword.get(arg, :endpoint)
+    ]
+
+    %{
+      id: Segment,
+      start: {Segment, :start_link, opts}
+    }
+  end
+
   @doc """
   Returns the segment key
 

From 7baea4fe73043d8cf1f11a8fd29dc3c49d624329 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Fri, 25 Jan 2019 16:55:49 +0100
Subject: [PATCH 05/33] pass the authentication as header (#3)

* pass the authentication as header

* Delete http.ex
---
 lib/segment/http.ex        |  9 ++-------
 mix.exs                    |  3 ++-
 mix.lock                   |  8 ++++++++
 test/segment/http_test.exs | 37 +++++++++++++++++++++++++++++++++++++
 test/test_helper.exs       |  1 +
 5 files changed, 50 insertions(+), 8 deletions(-)
 create mode 100644 test/segment/http_test.exs

diff --git a/lib/segment/http.ex b/lib/segment/http.ex
index d935c67..8dfe88f 100644
--- a/lib/segment/http.ex
+++ b/lib/segment/http.ex
@@ -6,18 +6,13 @@ defmodule Segment.Analytics.Http do
   end
 
   def post(url, body, headers, options \\ []) do
-    options_with_auth = Keyword.merge(options, hackney: [basic_auth: {Segment.key(), ""}])
-
-    request(:post, url, body, headers, options_with_auth)
-  end
-
-  def process_options(options) do
-    Keyword.put(options, :basic_auth, {Segment.key(), ""})
+    request(:post, url, body, headers, options)
   end
 
   def process_request_headers(headers) do
     headers
     |> Keyword.put(:"Content-Type", "application/json")
     |> Keyword.put(:accept, "application/json")
+    |> Keyword.put(:"X-API-Key", Segment.key())
   end
 end
diff --git a/mix.exs b/mix.exs
index 8f977fd..21b368c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -32,7 +32,8 @@ defmodule AnalyticsElixir.Mixfile do
     [
       {:httpoison, "~> 1.4"},
       {:poison, "~> 4.0"},
-      {:ex_doc, "~> 0.19", only: :dev, runtime: false}
+      {:ex_doc, "~> 0.19", only: :dev, runtime: false},
+      {:bypass, "~> 1.0", only: :test}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index ad6268a..836cd16 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,5 +1,8 @@
 %{
+  "bypass": {:hex, :bypass, "1.0.0", "b78b3dcb832a71aca5259c1a704b2e14b55fd4e1327ff942598b4e7d1a7ad83d", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}], "hexpm"},
   "certifi": {:hex, :certifi, "2.4.2", "75424ff0f3baaccfd34b1214184b6ef616d89e420b258bb0a5ea7d7bc628f7f0", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
+  "cowboy": {:hex, :cowboy, "2.6.1", "f2e06f757c337b3b311f9437e6e072b678fcd71545a7b2865bdaa154d078593f", [:rebar3], [{:cowlib, "~> 2.7.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm"},
+  "cowlib": {:hex, :cowlib, "2.7.0", "3ef16e77562f9855a2605900cedb15c1462d76fb1be6a32fc3ae91973ee543d2", [:rebar3], [], "hexpm"},
   "earmark": {:hex, :earmark, "1.3.1", "73812f447f7a42358d3ba79283cfa3075a7580a3a2ed457616d6517ac3738cb9", [:mix], [], "hexpm"},
   "ex_doc": {:hex, :ex_doc, "0.19.2", "6f4081ccd9ed081b6dc0bd5af97a41e87f5554de469e7d76025fba535180565f", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
   "hackney": {:hex, :hackney, "1.15.0", "287a5d2304d516f63e56c469511c42b016423bcb167e61b611f6bad47e3ca60e", [:rebar3], [{:certifi, "2.4.2", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "6.0.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.4", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
@@ -8,10 +11,15 @@
   "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
+  "mime": {:hex, :mime, "1.3.1", "30ce04ab3175b6ad0bdce0035cba77bba68b813d523d1aac73d9781b4d193cf8", [:mix], [], "hexpm"},
   "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], []},
   "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm"},
   "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm"},
+  "plug": {:hex, :plug, "1.7.1", "8516d565fb84a6a8b2ca722e74e2cd25ca0fc9d64f364ec9dbec09d33eb78ccd", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}], "hexpm"},
+  "plug_cowboy": {:hex, :plug_cowboy, "2.0.1", "d798f8ee5acc86b7d42dbe4450b8b0dadf665ce588236eb0a751a132417a980e", [:mix], [{:cowboy, "~> 2.5", [hex: :cowboy, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
+  "plug_crypto": {:hex, :plug_crypto, "1.0.0", "18e49317d3fa343f24620ed22795ec29d4a5e602d52d1513ccea0b07d8ea7d4d", [:mix], [], "hexpm"},
   "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm"},
+  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
 }
diff --git a/test/segment/http_test.exs b/test/segment/http_test.exs
new file mode 100644
index 0000000..9bb3c4e
--- /dev/null
+++ b/test/segment/http_test.exs
@@ -0,0 +1,37 @@
+defmodule Segment.Analytics.HttpTest do
+  use ExUnit.Case, async: true
+
+  @apikey "afakekey"
+  @url "something"
+  @body ~s({"sample": "body"})
+
+  setup do
+    bypass = Bypass.open()
+    Segment.start_link(@apikey, endpoint_url(bypass.port))
+
+    {:ok, bypass: bypass}
+  end
+
+  describe "post/4" do
+    test "the request sent is correct", %{bypass: bypass} do
+      Bypass.expect(bypass, "POST", "/#{@url}", fn conn ->
+        [
+          {"accept", "application/json"},
+          {"content-type", "application/json"},
+          {"x-api-key", @apikey}
+        ]
+        |> Enum.each(fn {header, value} ->
+          assert [value] == Plug.Conn.get_req_header(conn, header)
+        end)
+
+        assert {:ok, @body, _conn} = Plug.Conn.read_body(conn)
+
+        Plug.Conn.resp(conn, 200, "")
+      end)
+
+      Segment.Analytics.Http.post(@url, @body, [])
+    end
+  end
+
+  defp endpoint_url(port), do: "http://localhost:#{port}/"
+end
diff --git a/test/test_helper.exs b/test/test_helper.exs
index 869559e..071f140 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -1 +1,2 @@
 ExUnit.start()
+Application.ensure_all_started(:bypass)

From 0c6fd25952f4ce23bb8bc064fbf8ed24e7f959b9 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Mon, 28 Jan 2019 10:16:36 +0100
Subject: [PATCH 06/33] support the tracking of a list of events (#4)

---
 lib/segment/analytics.ex        | 11 +++++++
 lib/segment/model.ex            | 10 +++++++
 test/segment/analytics_test.exs | 53 +++++++++++++++++++++++++++++++++
 test/segment/http_test.exs      |  4 ++-
 4 files changed, 77 insertions(+), 1 deletion(-)
 create mode 100644 test/segment/analytics_test.exs

diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index 69413d1..e457dfb 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -4,6 +4,17 @@ defmodule Segment.Analytics do
 
   require Logger
 
+  def batch_track(events) when is_list(events) do
+    %Segment.Analytics.BatchTrack{
+      batch: Enum.map(events, fn e -> valid_track_event(e) end)
+    }
+    |> call
+  end
+
+  defp valid_track_event(track = %Segment.Analytics.Track{}) do
+    track
+  end
+
   def track(t = %Segment.Analytics.Track{}) do
     call(t)
   end
diff --git a/lib/segment/model.ex b/lib/segment/model.ex
index c003cfb..4aa430f 100644
--- a/lib/segment/model.ex
+++ b/lib/segment/model.ex
@@ -1,3 +1,13 @@
+defmodule Segment.Analytics.BatchTrack do
+  @derive {Poison.Encoder, except: [:method]}
+  @method "track"
+
+  defstruct [
+    :batch,
+    method: @method
+  ]
+end
+
 defmodule Segment.Analytics.Track do
   @derive [Poison.Encoder]
   @method "track"
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
new file mode 100644
index 0000000..916d2f7
--- /dev/null
+++ b/test/segment/analytics_test.exs
@@ -0,0 +1,53 @@
+defmodule Segment.Analytics.AnalyticsTest do
+  # not used in async mode because of Bypass
+  # test fail randomly
+  use ExUnit.Case
+
+  setup do
+    bypass = Bypass.open()
+    Segment.start_link("123", endpoint_url(bypass.port))
+
+    {:ok, bypass: bypass}
+  end
+
+  describe "batch_track/1" do
+    test "send a batch event", %{bypass: bypass} do
+      Bypass.expect(bypass, fn conn ->
+        body = ~s"""
+        {
+          "batch":[
+            {
+              "userId":null,
+              "timestamp":null,
+              "properties":{},
+              "method":"track",
+              "integrations":null,
+              "event":"test1",
+              "context":{},
+              "anonymousId":null
+            }
+          ]
+        }
+        """
+
+        assert {:ok, body, _conn} = Plug.Conn.read_body(conn)
+
+        Plug.Conn.resp(conn, 200, "")
+      end)
+
+      events = [
+        %Segment.Analytics.Track{
+          userId: nil,
+          event: "test1",
+          properties: %{},
+          context: %{}
+        }
+      ]
+
+      task = Segment.Analytics.batch_track(events)
+      Task.await(task)
+    end
+  end
+
+  defp endpoint_url(port), do: "http://localhost:#{port}/"
+end
diff --git a/test/segment/http_test.exs b/test/segment/http_test.exs
index 9bb3c4e..1c03716 100644
--- a/test/segment/http_test.exs
+++ b/test/segment/http_test.exs
@@ -1,5 +1,7 @@
 defmodule Segment.Analytics.HttpTest do
-  use ExUnit.Case, async: true
+  # not used in async mode because of Bypass
+  # test fail randomly
+  use ExUnit.Case
 
   @apikey "afakekey"
   @url "something"

From 6607c209cab72942b2b9cbc359bd400bfc2f2023 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Mon, 28 Jan 2019 13:33:52 +0100
Subject: [PATCH 07/33] send all the requests to the root url (#5)

also remove debug logging not useful for debugging for the lack of
information provided
---
 lib/segment/analytics.ex | 8 ++------
 lib/segment/http.ex      | 2 +-
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index e457dfb..259e4d7 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -84,7 +84,8 @@ defmodule Segment.Analytics do
   end
 
   defp post_to_segment(function, body) do
-    Http.post(function, body)
+    # all the requests go to the root url
+    Http.post("", body)
     |> log_result(function, body)
   end
 
@@ -93,11 +94,6 @@ defmodule Segment.Analytics do
     Logger.debug("Segment #{function} call success: #{code} with body: #{body}")
   end
 
-  defp log_result({_, %{status_code: code}}, function, body) do
-    # HTTP failure
-    Logger.debug("Segment #{function} call failed: #{code} with body: #{body}")
-  end
-
   defp log_result(error, function, body) do
     # every other failure
     Logger.debug("Segment #{function} call failed: #{inspect(error)} with body: #{body}")
diff --git a/lib/segment/http.ex b/lib/segment/http.ex
index 8dfe88f..845cbef 100644
--- a/lib/segment/http.ex
+++ b/lib/segment/http.ex
@@ -13,6 +13,6 @@ defmodule Segment.Analytics.Http do
     headers
     |> Keyword.put(:"Content-Type", "application/json")
     |> Keyword.put(:accept, "application/json")
-    |> Keyword.put(:"X-API-Key", Segment.key())
+    |> Keyword.put(:"x-api-key", Segment.key())
   end
 end

From c2287827c331b44f052725d8ee74eb91774efcc7 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Mon, 28 Jan 2019 20:56:13 +0100
Subject: [PATCH 08/33] add timestamps default fields and library struct (#6)

---
 lib/segment/analytics.ex        | 114 ++++++++++++++++++--------------
 lib/segment/http.ex             |   4 --
 lib/segment/model.ex            |  30 ++++++---
 mix.exs                         |   1 +
 test/segment/analytics_test.exs |  20 +++---
 test/segment/model_test.exs     |  17 +++++
 test/segment_test.exs           |   2 +-
 7 files changed, 112 insertions(+), 76 deletions(-)
 create mode 100644 test/segment/model_test.exs

diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index 259e4d7..fbc2a3e 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -4,22 +4,9 @@ defmodule Segment.Analytics do
 
   require Logger
 
-  def batch_track(events) when is_list(events) do
-    %Segment.Analytics.BatchTrack{
-      batch: Enum.map(events, fn e -> valid_track_event(e) end)
-    }
-    |> call
-  end
-
-  defp valid_track_event(track = %Segment.Analytics.Track{}) do
-    track
-  end
-
-  def track(t = %Segment.Analytics.Track{}) do
-    call(t)
-  end
+  def track(t = %Segment.Analytics.Track{}), do: call(t)
 
-  def track(user_id, event, properties \\ %{}, context \\ Context.new()) do
+  def track(user_id, event, properties \\ %{}, context \\ %Context{}) do
     %Segment.Analytics.Track{
       userId: user_id,
       event: event,
@@ -29,20 +16,20 @@ defmodule Segment.Analytics do
     |> call
   end
 
-  def identify(i = %Segment.Analytics.Identify{}) do
-    call(i)
-  end
+  def identify(i = %Segment.Analytics.Identify{}), do: call(i)
 
-  def identify(user_id, traits \\ %{}, context \\ Context.new()) do
-    %Segment.Analytics.Identify{userId: user_id, traits: traits, context: context}
+  def identify(user_id, traits \\ %{}, context \\ %Context{}) do
+    %Segment.Analytics.Identify{
+      userId: user_id,
+      traits: traits,
+      context: context
+    }
     |> call
   end
 
-  def screen(s = %Segment.Analytics.Screen{}) do
-    call(s)
-  end
+  def screen(s = %Segment.Analytics.Screen{}), do: call(s)
 
-  def screen(user_id, name \\ "", properties \\ %{}, context \\ Context.new()) do
+  def screen(user_id, name \\ "", properties \\ %{}, context \\ %Context{}) do
     %Segment.Analytics.Screen{
       userId: user_id,
       name: name,
@@ -52,50 +39,79 @@ defmodule Segment.Analytics do
     |> call
   end
 
-  def alias(a = %Segment.Analytics.Alias{}) do
-    call(a)
-  end
+  def alias(a = %Segment.Analytics.Alias{}), do: call(a)
 
-  def alias(user_id, previous_id, context \\ Context.new()) do
-    %Segment.Analytics.Alias{userId: user_id, previousId: previous_id, context: context}
+  def alias(user_id, previous_id, context \\ %Context{}) do
+    %Segment.Analytics.Alias{
+      userId: user_id,
+      previousId: previous_id,
+      context: context
+    }
     |> call
   end
 
-  def group(g = %Segment.Analytics.Group{}) do
-    call(g)
+  def group(g = %Segment.Analytics.Group{}), do: call(g)
+
+  def group(user_id, group_id, traits \\ %{}, context \\ %Context{}) do
+    %Segment.Analytics.Group{
+      userId: user_id,
+      groupId: group_id,
+      traits: traits,
+      context: context
+    }
+    |> call
   end
 
-  def group(user_id, group_id, traits \\ %{}, context \\ Context.new()) do
-    %Segment.Analytics.Group{userId: user_id, groupId: group_id, traits: traits, context: context}
+  def page(p = %Segment.Analytics.Page{}), do: call(p)
+
+  def page(user_id, name \\ "", properties \\ %{}, context \\ %Context{}) do
+    %Segment.Analytics.Page{
+      userId: user_id,
+      name: name,
+      properties: properties,
+      context: context
+    }
     |> call
   end
 
-  def page(p = %Segment.Analytics.Page{}) do
-    call(p)
+  defp call(model) do
+    batch =
+      model
+      |> fill_context()
+      |> fill_dates()
+      |> model_to_batch()
+      |> Poison.encode!()
+
+    Task.async(fn -> post_to_segment(batch) end)
   end
 
-  def page(user_id, name \\ "", properties \\ %{}, context \\ Context.new()) do
-    %Segment.Analytics.Page{userId: user_id, name: name, properties: properties, context: context}
-    |> call
+  # TODO: replace with an actual buffering
+  # to send events in batches rather than one by one
+  # The idea is to reduce the traffic to the segment service
+  defp model_to_batch(model) do
+    %{batch: [model]}
+  end
+
+  defp fill_context(model) do
+    put_in(model.context.library, Segment.Analytics.Context.Library.build())
   end
 
-  defp call(api) do
-    Task.async(fn -> post_to_segment(api.method, Poison.encode!(api)) end)
+  defp fill_dates(model) do
+    put_in(model.sentAt, :os.system_time(:milli_seconds))
   end
 
-  defp post_to_segment(function, body) do
-    # all the requests go to the root url
+  defp post_to_segment(body) do
     Http.post("", body)
-    |> log_result(function, body)
+    |> log_result(body)
   end
 
-  defp log_result({_, %{status_code: code}}, function, body) when code in 200..299 do
-    # success
-    Logger.debug("Segment #{function} call success: #{code} with body: #{body}")
+  # log success responses
+  defp log_result({_, %{status_code: code}}, body) when code in 200..299 do
+    Logger.debug("[#{__MODULE__}] call success: #{code} with body: #{body}")
   end
 
-  defp log_result(error, function, body) do
-    # every other failure
-    Logger.debug("Segment #{function} call failed: #{inspect(error)} with body: #{body}")
+  # log failed responses
+  defp log_result(error, body) do
+    Logger.debug("[#{__MODULE__}] call failed: #{inspect(error)} with body: #{body}")
   end
 end
diff --git a/lib/segment/http.ex b/lib/segment/http.ex
index 845cbef..7836dcf 100644
--- a/lib/segment/http.ex
+++ b/lib/segment/http.ex
@@ -5,10 +5,6 @@ defmodule Segment.Analytics.Http do
     Segment.endpoint() <> url
   end
 
-  def post(url, body, headers, options \\ []) do
-    request(:post, url, body, headers, options)
-  end
-
   def process_request_headers(headers) do
     headers
     |> Keyword.put(:"Content-Type", "application/json")
diff --git a/lib/segment/model.ex b/lib/segment/model.ex
index 4aa430f..248a600 100644
--- a/lib/segment/model.ex
+++ b/lib/segment/model.ex
@@ -20,6 +20,7 @@ defmodule Segment.Analytics.Track do
     :timestamp,
     :integrations,
     :anonymousId,
+    :sentAt,
     method: @method
   ]
 end
@@ -86,11 +87,26 @@ defmodule Segment.Analytics.Group do
   ]
 end
 
-defmodule Segment.Analytics.Context do
+defmodule Segment.Analytics.Context.Library do
   @derive [Poison.Encoder]
-  @library_name Mix.Project.get().project[:description]
-  @library_version Mix.Project.get().project[:version]
 
+  @project_name Mix.Project.get().project[:name]
+  @project_version Mix.Project.get().project[:version]
+
+  defstruct [:name, :version, :transport]
+
+  def build() do
+    %__MODULE__{
+      name: @project_name,
+      version: @project_version,
+      # the only supported by the library for now.
+      transport: "http"
+    }
+  end
+end
+
+defmodule Segment.Analytics.Context do
+  @derive [Poison.Encoder]
   defstruct [
     :app,
     :campaign,
@@ -108,12 +124,4 @@ defmodule Segment.Analytics.Context do
     :traits,
     :userAgent
   ]
-
-  def update(context = %__MODULE__{}) do
-    %{context | library: %{name: @library_name, version: @library_version}}
-  end
-
-  def new do
-    update(%__MODULE__{})
-  end
 end
diff --git a/mix.exs b/mix.exs
index 21b368c..d57e1ad 100644
--- a/mix.exs
+++ b/mix.exs
@@ -7,6 +7,7 @@ defmodule AnalyticsElixir.Mixfile do
       version: "0.1.2",
       elixir: "~> 1.0",
       deps: deps(),
+      name: "analytics_elixir",
       description: "analytics_elixir",
       package: package()
     ]
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 916d2f7..3f517e7 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -10,8 +10,8 @@ defmodule Segment.Analytics.AnalyticsTest do
     {:ok, bypass: bypass}
   end
 
-  describe "batch_track/1" do
-    test "send a batch event", %{bypass: bypass} do
+  describe "track/1" do
+    test "send a track event", %{bypass: bypass} do
       Bypass.expect(bypass, fn conn ->
         body = ~s"""
         {
@@ -35,16 +35,14 @@ defmodule Segment.Analytics.AnalyticsTest do
         Plug.Conn.resp(conn, 200, "")
       end)
 
-      events = [
-        %Segment.Analytics.Track{
-          userId: nil,
-          event: "test1",
-          properties: %{},
-          context: %{}
-        }
-      ]
+      event = %Segment.Analytics.Track{
+        userId: nil,
+        event: "test1",
+        properties: %{},
+        context: %Segment.Analytics.Context{}
+      }
 
-      task = Segment.Analytics.batch_track(events)
+      task = Segment.Analytics.track(event)
       Task.await(task)
     end
   end
diff --git a/test/segment/model_test.exs b/test/segment/model_test.exs
new file mode 100644
index 0000000..9faa104
--- /dev/null
+++ b/test/segment/model_test.exs
@@ -0,0 +1,17 @@
+defmodule Segment.Analytics.Context.LibraryTest do
+  # not used in async mode because of Bypass
+  # test fail randomly
+  use ExUnit.Case
+
+  alias Segment.Analytics.Context.Library
+
+  describe "build/1" do
+    test "builds the library struct with the default values" do
+      assert %Library{
+               name: Mix.Project.get().project[:name],
+               transport: "http",
+               version: Mix.Project.get().project[:version]
+             } == Library.build()
+    end
+  end
+end
diff --git a/test/segment_test.exs b/test/segment_test.exs
index c8b213e..ce0a3b6 100644
--- a/test/segment_test.exs
+++ b/test/segment_test.exs
@@ -6,7 +6,7 @@ defmodule SegmentTest do
   @segment_test_key System.get_env("SEGMENT_KEY")
 
   test "track debugging" do
-    Segment.start_link(@segment_test_key)
+    Segment.start_link(@segment_test_key, "https://api.segment.io/v1/track")
     t = Segment.Analytics.track("343434", "track debugging #{elem(:os.timestamp(), 2)}")
     Task.await(t)
   end

From e99549eb7e084857a5ba25f600c77075e745c8e8 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Tue, 29 Jan 2019 12:47:30 +0100
Subject: [PATCH 09/33] fix the event message structure (#7)

---
 lib/segment/analytics.ex        | 15 +++++----
 lib/segment/model.ex            | 34 +++++++++++++-------
 mix.exs                         |  7 +++--
 mix.lock                        |  1 +
 test/segment/analytics_test.exs | 56 ++++++++++++++++++++++-----------
 5 files changed, 75 insertions(+), 38 deletions(-)

diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index fbc2a3e..51e3081 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -77,9 +77,9 @@ defmodule Segment.Analytics do
   defp call(model) do
     batch =
       model
+      |> generate_message_id()
       |> fill_context()
-      |> fill_dates()
-      |> model_to_batch()
+      |> wrap_in_batch()
       |> Poison.encode!()
 
     Task.async(fn -> post_to_segment(batch) end)
@@ -88,16 +88,19 @@ defmodule Segment.Analytics do
   # TODO: replace with an actual buffering
   # to send events in batches rather than one by one
   # The idea is to reduce the traffic to the segment service
-  defp model_to_batch(model) do
-    %{batch: [model]}
+  defp wrap_in_batch(model) do
+    %Segment.Analytics.Batch{
+      batch: [model],
+      sentAt: :os.system_time(:milli_seconds)
+    }
   end
 
   defp fill_context(model) do
     put_in(model.context.library, Segment.Analytics.Context.Library.build())
   end
 
-  defp fill_dates(model) do
-    put_in(model.sentAt, :os.system_time(:milli_seconds))
+  defp generate_message_id(model) do
+    put_in(model.messageId, UUID.uuid4())
   end
 
   defp post_to_segment(body) do
diff --git a/lib/segment/model.ex b/lib/segment/model.ex
index 248a600..2a5f687 100644
--- a/lib/segment/model.ex
+++ b/lib/segment/model.ex
@@ -1,10 +1,9 @@
-defmodule Segment.Analytics.BatchTrack do
-  @derive {Poison.Encoder, except: [:method]}
-  @method "track"
+defmodule Segment.Analytics.Batch do
+  @derive [Poison.Encoder]
 
   defstruct [
     :batch,
-    method: @method
+    :sentAt
   ]
 end
 
@@ -20,8 +19,8 @@ defmodule Segment.Analytics.Track do
     :timestamp,
     :integrations,
     :anonymousId,
-    :sentAt,
-    method: @method
+    :messageId,
+    type: @method
   ]
 end
 
@@ -29,14 +28,23 @@ defmodule Segment.Analytics.Identify do
   @derive [Poison.Encoder]
   @method "identify"
 
-  defstruct [:userId, :traits, :context, :timestamp, :integrations, :anonymousId, method: @method]
+  defstruct [
+    :userId,
+    :traits,
+    :context,
+    :timestamp,
+    :integrations,
+    :anonymousId,
+    :messageId,
+    type: @method
+  ]
 end
 
 defmodule Segment.Analytics.Alias do
   @derive [Poison.Encoder]
   @method "alias"
 
-  defstruct [:userId, :previousId, :context, :timestamp, :integrations, method: @method]
+  defstruct [:userId, :previousId, :context, :timestamp, :integrations, type: @method]
 end
 
 defmodule Segment.Analytics.Page do
@@ -51,7 +59,8 @@ defmodule Segment.Analytics.Page do
     :timestamp,
     :integrations,
     :anonymousId,
-    method: @method
+    :messageId,
+    type: @method
   ]
 end
 
@@ -67,7 +76,8 @@ defmodule Segment.Analytics.Screen do
     :timestamp,
     :integrations,
     :anonymousId,
-    method: @method
+    :messageId,
+    type: @method
   ]
 end
 
@@ -83,7 +93,8 @@ defmodule Segment.Analytics.Group do
     :timestamp,
     :integrations,
     :anonymousId,
-    method: @method
+    :messageId,
+    type: @method
   ]
 end
 
@@ -107,6 +118,7 @@ end
 
 defmodule Segment.Analytics.Context do
   @derive [Poison.Encoder]
+
   defstruct [
     :app,
     :campaign,
diff --git a/mix.exs b/mix.exs
index d57e1ad..e527cab 100644
--- a/mix.exs
+++ b/mix.exs
@@ -34,7 +34,8 @@ defmodule AnalyticsElixir.Mixfile do
       {:httpoison, "~> 1.4"},
       {:poison, "~> 4.0"},
       {:ex_doc, "~> 0.19", only: :dev, runtime: false},
-      {:bypass, "~> 1.0", only: :test}
+      {:bypass, "~> 1.0", only: :test},
+      {:uuid, "~> 1.1"}
     ]
   end
 
@@ -42,9 +43,9 @@ defmodule AnalyticsElixir.Mixfile do
     # These are the default files included in the package
     [
       files: ["lib", "mix.exs", "README*", "LICENSE*"],
-      maintainers: ["Stuart Eccles"],
+      maintainers: ["Antonio Lorusso", "Fernando Hamasaki de Amorim"],
       licenses: ["MIT"],
-      links: %{"GitHub" => "https://github.com/stueccles/analytics-elixir"}
+      links: %{"GitHub" => "https://github.com/FindHotel/analytics-elixir"}
     ]
   end
 end
diff --git a/mix.lock b/mix.lock
index 836cd16..e5a05f5 100644
--- a/mix.lock
+++ b/mix.lock
@@ -22,4 +22,5 @@
   "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
+  "uuid": {:hex, :uuid, "1.1.8", "e22fc04499de0de3ed1116b770c7737779f226ceefa0badb3592e64d5cfb4eb9", [:mix], [], "hexpm"},
 }
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 3f517e7..7a59a56 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -13,24 +13,44 @@ defmodule Segment.Analytics.AnalyticsTest do
   describe "track/1" do
     test "send a track event", %{bypass: bypass} do
       Bypass.expect(bypass, fn conn ->
-        body = ~s"""
-        {
-          "batch":[
-            {
-              "userId":null,
-              "timestamp":null,
-              "properties":{},
-              "method":"track",
-              "integrations":null,
-              "event":"test1",
-              "context":{},
-              "anonymousId":null
-            }
-          ]
-        }
-        """
-
-        assert {:ok, body, _conn} = Plug.Conn.read_body(conn)
+        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
+
+        assert %{
+                 "batch" => [
+                   %{
+                     "userId" => nil,
+                     "type" => "track",
+                     "timestamp" => nil,
+                     "properties" => %{},
+                     "integrations" => nil,
+                     "event" => "test1",
+                     "context" => %{
+                       "userAgent" => nil,
+                       "traits" => nil,
+                       "timezone" => nil,
+                       "screen" => nil,
+                       "referrer" => nil,
+                       "page" => nil,
+                       "os" => nil,
+                       "network" => nil,
+                       "location" => nil,
+                       "locale" => nil,
+                       "library" => %{
+                         "version" => "0.1.2",
+                         "transport" => "http",
+                         "name" => "analytics_elixir"
+                       },
+                       "ip" => nil,
+                       "device" => nil,
+                       "campaign" => nil,
+                       "app" => nil
+                     },
+                     "anonymousId" => nil
+                   }
+                 ]
+               } = Poison.decode!(received_body)
+
+        # messageId and sentAt are not asserted
 
         Plug.Conn.resp(conn, 200, "")
       end)

From f8dcad63d183fb301c1e226f0a016628d3a3d203 Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Tue, 29 Jan 2019 14:43:59 +0100
Subject: [PATCH 10/33] add the uuid dep

---
 mix.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index e527cab..d9b2ca7 100644
--- a/mix.exs
+++ b/mix.exs
@@ -17,7 +17,7 @@ defmodule AnalyticsElixir.Mixfile do
   #
   # Type `mix help compile.app` for more information
   def application do
-    [applications: [:httpoison, :logger, :poison]]
+    [applications: [:httpoison, :logger, :poison, :uuid]]
   end
 
   # Dependencies can be Hex packages:

From f73c6d65d4fd7cfaf88dc78db7d1e0b49a4e3bdf Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Tue, 22 Sep 2020 18:05:22 +0200
Subject: [PATCH 11/33] Allow endpoint and api key to be passed via options to
 the new public (#8)

---
 README.md                       |  18 ++++-
 lib/segment/analytics.ex        |   8 +-
 lib/segment/http.ex             |  25 ++++---
 test/segment/analytics_test.exs | 126 +++++++++++++++++++++++++++++++-
 test/segment/http_test.exs      |  35 ++++++++-
 test/segment_test.exs           |  35 ++++++++-
 6 files changed, 226 insertions(+), 21 deletions(-)

diff --git a/README.md b/README.md
index 5789bb3..0a42617 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ analytics-elixir is a non-supported third-party client for [Segment](https://seg
 
 ## Install
 
-Add the following to deps section of your mix.exs: `{:segment, github: "stueccles/analytics-elixir"}`
+Add the following to deps section of your mix.exs: `{:segment, github: "FindHotel/analytics-elixir"}`
 
 and then `mix deps.get`
 
@@ -24,7 +24,7 @@ with all the data for the API (allowing Context and Integrations to be set)
 
 This is how I add to a Phoenix project (may not be your preferred way)
 
-1. Add the following to deps section of your mix.exs: `{:segment, github: "stueccles/analytics-elixir"}`
+1. Add the following to deps section of your mix.exs: `{:segment, github: "FindHotel/analytics-elixir"}`
    and then `mix deps.get`
 
 2. Add segment to applications list in the Phoenix project mix.exs
@@ -125,6 +125,20 @@ or the full way using a struct with all the possible options for the page call
   |> Segment.Analytics.page
 ```
 
+### Config as options
+
+You can also pass the __endpoint__ and __key__ as options to the
+`Segment.Analytics.call/2` along with the struct.
+```
+%Segment.Analytics.Track{ userId: "sdsds",
+                          event: "eventname",
+                          properties: %{property1: "", property2: ""}
+                        }
+  |> Segment.Analytics.call([key: "YOUR_SEGMENT_KEY", endpoint: "https://example.com/v1"])
+```
+
+With this approach the options take precedence over configurations stored in the Segment agent.
+
 ## Running tests
 
 There are not many tests at the moment. But you can run a live test on your segment
diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index 51e3081..fcfc390 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -74,7 +74,7 @@ defmodule Segment.Analytics do
     |> call
   end
 
-  defp call(model) do
+  def call(model, options \\ []) do
     batch =
       model
       |> generate_message_id()
@@ -82,7 +82,7 @@ defmodule Segment.Analytics do
       |> wrap_in_batch()
       |> Poison.encode!()
 
-    Task.async(fn -> post_to_segment(batch) end)
+    Task.async(fn -> post_to_segment(batch, options) end)
   end
 
   # TODO: replace with an actual buffering
@@ -103,8 +103,8 @@ defmodule Segment.Analytics do
     put_in(model.messageId, UUID.uuid4())
   end
 
-  defp post_to_segment(body) do
-    Http.post("", body)
+  defp post_to_segment(body, options) do
+    Http.post("", body, options)
     |> log_result(body)
   end
 
diff --git a/lib/segment/http.ex b/lib/segment/http.ex
index 7836dcf..efddceb 100644
--- a/lib/segment/http.ex
+++ b/lib/segment/http.ex
@@ -1,14 +1,21 @@
 defmodule Segment.Analytics.Http do
-  use HTTPoison.Base
-
-  def process_url(url) do
-    Segment.endpoint() <> url
+  def post(path, body, options) do
+    path
+    |> process_url(options)
+    |> HTTPoison.post(body, process_request_headers(options))
   end
 
-  def process_request_headers(headers) do
-    headers
-    |> Keyword.put(:"Content-Type", "application/json")
-    |> Keyword.put(:accept, "application/json")
-    |> Keyword.put(:"x-api-key", Segment.key())
+  def process_url(path, options),
+    do: get_config(options, :endpoint, &Segment.endpoint/0) <> path
+
+  def process_request_headers(options) do
+    [
+      {"Content-Type", "application/json"},
+      {"Accept", "application/json"},
+      {"x-api-key", get_config(options, :key, &Segment.key/0)}
+    ]
   end
+
+  def get_config(options, key, default_func),
+    do: Keyword.get(options, key) || default_func.()
 end
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 7a59a56..236a567 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -5,13 +5,13 @@ defmodule Segment.Analytics.AnalyticsTest do
 
   setup do
     bypass = Bypass.open()
-    Segment.start_link("123", endpoint_url(bypass.port))
+    start_supervised({Segment, [key: "123", endpoint: endpoint_url(bypass.port)]})
 
     {:ok, bypass: bypass}
   end
 
   describe "track/1" do
-    test "send a track event", %{bypass: bypass} do
+    test "sends a track event", %{bypass: bypass} do
       Bypass.expect(bypass, fn conn ->
         {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
 
@@ -67,5 +67,127 @@ defmodule Segment.Analytics.AnalyticsTest do
     end
   end
 
+  describe "call/2" do
+    test "sends an event", %{bypass: bypass} do
+      Bypass.expect(bypass, fn conn ->
+        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
+
+        assert %{
+                 "batch" => [
+                   %{
+                     "userId" => nil,
+                     "type" => "track",
+                     "timestamp" => nil,
+                     "properties" => %{},
+                     "integrations" => nil,
+                     "event" => "test1",
+                     "context" => %{
+                       "userAgent" => nil,
+                       "traits" => nil,
+                       "timezone" => nil,
+                       "screen" => nil,
+                       "referrer" => nil,
+                       "page" => nil,
+                       "os" => nil,
+                       "network" => nil,
+                       "location" => nil,
+                       "locale" => nil,
+                       "library" => %{
+                         "version" => "0.1.2",
+                         "transport" => "http",
+                         "name" => "analytics_elixir"
+                       },
+                       "ip" => nil,
+                       "device" => nil,
+                       "campaign" => nil,
+                       "app" => nil
+                     },
+                     "anonymousId" => nil
+                   }
+                 ]
+               } = Poison.decode!(received_body)
+
+        # messageId and sentAt are not asserted
+
+        Plug.Conn.resp(conn, 200, "")
+      end)
+
+      event = %Segment.Analytics.Track{
+        userId: nil,
+        event: "test1",
+        properties: %{},
+        context: %Segment.Analytics.Context{}
+      }
+
+      task = Segment.Analytics.call(event)
+      Task.await(task)
+    end
+
+    test "sends an event using endpoint and key from options", %{bypass: bypass} do
+      Bypass.expect(bypass, fn _conn ->
+        flunk("#{endpoint_url(bypass.port)} shouldn't be called")
+      end)
+
+      Bypass.pass(bypass)
+
+      another_bypass = Bypass.open()
+
+      Bypass.expect(another_bypass, fn conn ->
+        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
+
+        assert %{
+                 "batch" => [
+                   %{
+                     "userId" => nil,
+                     "type" => "track",
+                     "timestamp" => nil,
+                     "properties" => %{},
+                     "integrations" => nil,
+                     "event" => "test1",
+                     "context" => %{
+                       "userAgent" => nil,
+                       "traits" => nil,
+                       "timezone" => nil,
+                       "screen" => nil,
+                       "referrer" => nil,
+                       "page" => nil,
+                       "os" => nil,
+                       "network" => nil,
+                       "location" => nil,
+                       "locale" => nil,
+                       "library" => %{
+                         "version" => "0.1.2",
+                         "transport" => "http",
+                         "name" => "analytics_elixir"
+                       },
+                       "ip" => nil,
+                       "device" => nil,
+                       "campaign" => nil,
+                       "app" => nil
+                     },
+                     "anonymousId" => nil
+                   }
+                 ]
+               } = Poison.decode!(received_body)
+
+        # messageId and sentAt are not asserted
+
+        Plug.Conn.resp(conn, 200, "")
+      end)
+
+      event = %Segment.Analytics.Track{
+        userId: nil,
+        event: "test1",
+        properties: %{},
+        context: %Segment.Analytics.Context{}
+      }
+
+      options = [key: "anotherkey", endpoint: endpoint_url(another_bypass.port)]
+
+      task = Segment.Analytics.call(event, options)
+      Task.await(task)
+    end
+  end
+
   defp endpoint_url(port), do: "http://localhost:#{port}/"
 end
diff --git a/test/segment/http_test.exs b/test/segment/http_test.exs
index 1c03716..545544e 100644
--- a/test/segment/http_test.exs
+++ b/test/segment/http_test.exs
@@ -9,7 +9,7 @@ defmodule Segment.Analytics.HttpTest do
 
   setup do
     bypass = Bypass.open()
-    Segment.start_link(@apikey, endpoint_url(bypass.port))
+    start_supervised!({Segment, [key: @apikey, endpoint: endpoint_url(bypass.port)]})
 
     {:ok, bypass: bypass}
   end
@@ -33,7 +33,38 @@ defmodule Segment.Analytics.HttpTest do
 
       Segment.Analytics.Http.post(@url, @body, [])
     end
+
+    test "when endpoint and key are given via options, " <>
+           "sends the request to the correct endpoint",
+         %{bypass: bypass} do
+      Bypass.expect(bypass, "POST", "/#{@url}", fn _conn ->
+        flunk("#{endpoint_url(bypass.port)} shouldn't be called")
+      end)
+
+      Bypass.pass(bypass)
+
+      another_bypass = Bypass.open()
+      another_apikey = "foobarbaz"
+      options = [key: another_apikey, endpoint: endpoint_url(another_bypass.port)]
+
+      Bypass.expect(another_bypass, "POST", "/#{@url}", fn conn ->
+        [
+          {"accept", "application/json"},
+          {"content-type", "application/json"},
+          {"x-api-key", another_apikey}
+        ]
+        |> Enum.each(fn {header, value} ->
+          assert [value] == Plug.Conn.get_req_header(conn, header)
+        end)
+
+        assert {:ok, @body, _conn} = Plug.Conn.read_body(conn)
+
+        Plug.Conn.resp(conn, 200, "")
+      end)
+
+      Segment.Analytics.Http.post(@url, @body, options)
+    end
   end
 
-  defp endpoint_url(port), do: "http://localhost:#{port}/"
+  def endpoint_url(port), do: "http://localhost:#{port}/"
 end
diff --git a/test/segment_test.exs b/test/segment_test.exs
index ce0a3b6..c360753 100644
--- a/test/segment_test.exs
+++ b/test/segment_test.exs
@@ -5,9 +5,40 @@ defmodule SegmentTest do
 
   @segment_test_key System.get_env("SEGMENT_KEY")
 
-  test "track debugging" do
-    Segment.start_link(@segment_test_key, "https://api.segment.io/v1/track")
+  setup do
+    {:ok, config: [key: @segment_test_key, endpoint: "https://api.segment.io/v1/track"]}
+  end
+
+  test "tracks debugging", %{config: config} do
+    start_supervised!({Segment, config})
+
     t = Segment.Analytics.track("343434", "track debugging #{elem(:os.timestamp(), 2)}")
     Task.await(t)
   end
+
+  describe "key/0" do
+    test "returns segment key", %{config: config} do
+      start_supervised!({Segment, config})
+
+      assert Segment.key() == Keyword.get(config, :key)
+    end
+
+    test "when agent was not started, raises an error" do
+      assert {:noproc, {GenServer, :call, [Segment, {:get, _function}, 5000]}} =
+               catch_exit(Segment.key())
+    end
+  end
+
+  describe "endpoint/0" do
+    test "returns segment endpoint", %{config: config} do
+      start_supervised!({Segment, config})
+
+      assert Segment.endpoint() == Keyword.get(config, :endpoint)
+    end
+
+    test "when agent was not started, returns nil" do
+      assert {:noproc, {GenServer, :call, [Segment, {:get, _function}, 5000]}} =
+               catch_exit(Segment.endpoint())
+    end
+  end
 end

From cd964ac555fb8a076a8629e3b1484616ddab6590 Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Wed, 23 Sep 2020 09:41:55 +0200
Subject: [PATCH 12/33] Bump to 0.2.0

---
 mix.exs                         | 9 +++++++--
 test/segment/analytics_test.exs | 6 +++---
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/mix.exs b/mix.exs
index d9b2ca7..97c5761 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule AnalyticsElixir.Mixfile do
   def project do
     [
       app: :segment,
-      version: "0.1.2",
+      version: "0.2.0",
       elixir: "~> 1.0",
       deps: deps(),
       name: "analytics_elixir",
@@ -43,7 +43,12 @@ defmodule AnalyticsElixir.Mixfile do
     # These are the default files included in the package
     [
       files: ["lib", "mix.exs", "README*", "LICENSE*"],
-      maintainers: ["Antonio Lorusso", "Fernando Hamasaki de Amorim"],
+      maintainers: [
+        "Antonio Lorusso",
+        "Felipe Vieira",
+        "Fernando Hamasaki de Amorim",
+        "Sergio Rodrigues"
+      ],
       licenses: ["MIT"],
       links: %{"GitHub" => "https://github.com/FindHotel/analytics-elixir"}
     ]
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 236a567..4653089 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -36,7 +36,7 @@ defmodule Segment.Analytics.AnalyticsTest do
                        "location" => nil,
                        "locale" => nil,
                        "library" => %{
-                         "version" => "0.1.2",
+                         "version" => "0.2.0",
                          "transport" => "http",
                          "name" => "analytics_elixir"
                        },
@@ -93,7 +93,7 @@ defmodule Segment.Analytics.AnalyticsTest do
                        "location" => nil,
                        "locale" => nil,
                        "library" => %{
-                         "version" => "0.1.2",
+                         "version" => "0.2.0",
                          "transport" => "http",
                          "name" => "analytics_elixir"
                        },
@@ -156,7 +156,7 @@ defmodule Segment.Analytics.AnalyticsTest do
                        "location" => nil,
                        "locale" => nil,
                        "library" => %{
-                         "version" => "0.1.2",
+                         "version" => "0.2.0",
                          "transport" => "http",
                          "name" => "analytics_elixir"
                        },

From 122aef69667fa86416904ab140ede488af01ab0b Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Mon, 28 Sep 2020 15:37:39 +0200
Subject: [PATCH 13/33] Removes unused fields (#9)

* Removes unused fields

* Add github action to build and run tests

* Remove built docs from repo
---
 .formatter.exs                      |    4 +
 .github/workflows/elixir.yml        |   40 ++
 CHANGELOG.md                        |   23 +
 Makefile                            |   73 ++
 README.md                           |   11 +-
 doc/.build                          |   20 -
 doc/.keep                           |    0
 doc/404.html                        |   89 ---
 doc/Segment.Analytics.Alias.html    |  100 ---
 doc/Segment.Analytics.Context.html  |  176 -----
 doc/Segment.Analytics.Group.html    |  100 ---
 doc/Segment.Analytics.Http.html     | 1000 ---------------------------
 doc/Segment.Analytics.Identify.html |  100 ---
 doc/Segment.Analytics.Page.html     |  100 ---
 doc/Segment.Analytics.Screen.html   |  100 ---
 doc/Segment.Analytics.Track.html    |  100 ---
 doc/Segment.Analytics.html          |  412 -----------
 doc/Segment.html                    |  228 ------
 doc/api-reference.html              |  138 ----
 doc/dist/app-091c05798a.css         |    1 -
 doc/dist/app-574613960f.js          |    6 -
 doc/dist/sidebar_items.js           |    1 -
 doc/fonts/icomoon.eot               |  Bin 2472 -> 0 bytes
 doc/fonts/icomoon.svg               |   16 -
 doc/fonts/icomoon.ttf               |  Bin 2308 -> 0 bytes
 doc/fonts/icomoon.woff              |  Bin 2384 -> 0 bytes
 doc/index.html                      |   11 -
 lib/segment/model.ex                |   11 +-
 mix.exs                             |   27 +-
 test/segment/analytics_test.exs     |   95 ++-
 30 files changed, 208 insertions(+), 2774 deletions(-)
 create mode 100644 .formatter.exs
 create mode 100644 .github/workflows/elixir.yml
 create mode 100644 CHANGELOG.md
 create mode 100644 Makefile
 delete mode 100644 doc/.build
 create mode 100644 doc/.keep
 delete mode 100644 doc/404.html
 delete mode 100644 doc/Segment.Analytics.Alias.html
 delete mode 100644 doc/Segment.Analytics.Context.html
 delete mode 100644 doc/Segment.Analytics.Group.html
 delete mode 100644 doc/Segment.Analytics.Http.html
 delete mode 100644 doc/Segment.Analytics.Identify.html
 delete mode 100644 doc/Segment.Analytics.Page.html
 delete mode 100644 doc/Segment.Analytics.Screen.html
 delete mode 100644 doc/Segment.Analytics.Track.html
 delete mode 100644 doc/Segment.Analytics.html
 delete mode 100644 doc/Segment.html
 delete mode 100644 doc/api-reference.html
 delete mode 100644 doc/dist/app-091c05798a.css
 delete mode 100644 doc/dist/app-574613960f.js
 delete mode 100644 doc/dist/sidebar_items.js
 delete mode 100644 doc/fonts/icomoon.eot
 delete mode 100644 doc/fonts/icomoon.svg
 delete mode 100644 doc/fonts/icomoon.ttf
 delete mode 100644 doc/fonts/icomoon.woff
 delete mode 100644 doc/index.html

diff --git a/.formatter.exs b/.formatter.exs
new file mode 100644
index 0000000..d2cda26
--- /dev/null
+++ b/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
new file mode 100644
index 0000000..5060c0c
--- /dev/null
+++ b/.github/workflows/elixir.yml
@@ -0,0 +1,40 @@
+name: analytics-elixir
+
+on:
+  push:
+    branches:
+      - '*'
+    tags-ignore:
+      - '*'
+
+env:
+    MIX_ENV: test
+
+jobs:
+  build:
+    name: Build and test
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Setup Elixir
+      uses: actions/setup-elixir@v1
+      with:
+        elixir-version: '1.10.4'
+        otp-version: '23.0.4'
+
+    - name: Restore dependencies cache
+      uses: actions/cache@v2
+      with:
+        path: deps
+        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
+        restore-keys: ${{ runner.os }}-mix-
+
+    - name: Install dependencies
+      run: mix deps.get
+
+    - name: Run tests
+      run: mix test
+
+    - name: Check formatted
+      run: mix format --check-formatted
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..5fe94df
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,23 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project
+adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+### Removed
+- Removes unused fields.
+
+## [0.2.0] - 2020-09-23
+### Added
+- Allow endpoint and API key to be passed via options to the new public function
+`Segment.Analytics.call/2`.
+
+## [v0.1.1] - 2016-10-13
+### Added
+- First release.
+
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/0.2.0...master
+[0.2.0]: https://github.com/FindHotel/analytics-elixir/compare/v0.1.1...0.2.0
+[v0.1.1]: https://github.com/FindHotel/analytics-elixir/releases/tag/v0.1.1
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..36b2e2f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,73 @@
+# -------------------------------------------
+# Common variables
+# -------------------------------------------
+
+VERSION_FILE := mix.exs
+VERSION := $(shell sed -En "s/^.*@version \"([0-9]*\\.[0-9]*\\.[0-9]*)\"*/\\1/p" ${VERSION_FILE})
+
+BLUE_COLOR := \033[0;34m
+DEFAULT_COLOR := \033[0;39m
+DIM_COLOR := \033[0;2m
+YELLOW_COLOR := \033[0;33m
+
+# -------------------------------------------
+# Default task
+# -------------------------------------------
+
+.DEFAULT_GOAL := help
+
+.PHONY: help
+help: ## Print this help
+	@printf "Segment Analytics Elixir ${VERSION}\n"
+	@awk -F ':|##' '/^[^\t].+?:.*?##/ { printf "${BLUE_COLOR}%-30s${DEFAULT_COLOR} %s\n", $$1, $$NF }' $(MAKEFILE_LIST)
+
+# -------------------------------------------
+# Release task
+# -------------------------------------------
+
+CHANGELOG_FILE := CHANGELOG.md
+DATE := $(shell date +"%Y-%m-%d")
+MAJOR := $(shell echo "${VERSION}" | cut -d . -f1)
+MINOR := $(shell echo "${VERSION}" | cut -d . -f2)
+PATCH := $(shell echo "${VERSION}" | cut -d . -f3)
+REPO_NAME := analytics-elixir
+REPO := https:\/\/round-lake.dustinice.workers.dev:443\/https\/github.com\/FindHotel\/${REPO_NAME}\/compare
+
+.PHONY: release
+release: ## Bump the version and create a new tag
+	@printf "${BLUE_COLOR}The current version is:${DEFAULT_COLOR} ${VERSION}\n" && \
+	  read -r -p "Do you want to release a [major|minor|patch]: " TYPE && \
+	  case "$$TYPE" in \
+	  "major") \
+	    MAJOR=$$((${MAJOR}+1)); \
+	    MINOR="0"; \
+	    PATCH="0"; \
+	    NEW_VERSION="$$MAJOR.$$MINOR.$$PATCH" \
+	    ;; \
+	  "minor") \
+	    MINOR=$$((${MINOR}+1)); \
+	    PATCH="0" && \
+	    NEW_VERSION="${MAJOR}.$$MINOR.$$PATCH" \
+	    ;; \
+	  "patch") \
+	    PATCH=$$((${PATCH}+1)); \
+	    NEW_VERSION="${MAJOR}.${MINOR}.$$PATCH" \
+	    ;; \
+	  *) \
+	    printf "\\n${YELLOW_COLOR}Release canceled!\n"; \
+	    exit 0 \
+	    ;; \
+	  esac && \
+	  printf "${BLUE_COLOR}The new version is:${DEFAULT_COLOR} $$NEW_VERSION\n" && \
+	  printf "\t${DIM_COLOR}Updating ${VERSION_FILE} version${DEFAULT_COLOR}\n" && \
+	  perl -p -i -e "s/@version \"${VERSION}\"/@version \"$$NEW_VERSION\"/g" ${VERSION_FILE} && \
+	  printf "\t${DIM_COLOR}Updating ${CHANGELOG_FILE} version${DEFAULT_COLOR}\n" && \
+	  perl -p -i -e "s/## \[Unreleased\]/## \[Unreleased\]\\n\\n## \[$$NEW_VERSION\] - ${DATE}/g" ${CHANGELOG_FILE} && \
+          perl -p -i -e "s/${REPO}\/${VERSION}...master/${REPO}\/$$NEW_VERSION...master/g" ${CHANGELOG_FILE} && \
+	  perl -p -i -e "s/...master/...master\\n\[$$NEW_VERSION\]: ${REPO}\/${VERSION}...$$NEW_VERSION/g" ${CHANGELOG_FILE} && \
+	  printf "\t${DIM_COLOR}Recording changes to the repository${DEFAULT_COLOR}\n" && \
+	  git add ${VERSION_FILE} ${CHANGELOG_FILE} && \
+	  git commit -m "Bump to $$NEW_VERSION" > /dev/null && \
+	  printf "\t${DIM_COLOR}Creating release tag${DEFAULT_COLOR}\n" && \
+	  git tag -a -m "" $$NEW_VERSION && \
+	  printf "\n${BLUE_COLOR}If everything's ok, push the changes to updstream!${DEFAULT_COLOR}\n"
diff --git a/README.md b/README.md
index 0a42617..d5ba01b 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-analytics-elixir
+analytics-elixir ![analytics-elixir](https://github.com/FindHotel/analytics-elixir/workflows/analytics-elixir/badge.svg?branch=master)
 ================
 
 analytics-elixir is a non-supported third-party client for [Segment](https://segment.com)
@@ -146,3 +146,12 @@ account by running.
 ```
 SEGMENT_KEY=yourkey mix test
 ```
+
+## Release
+
+After merge a new feature/bug you can bump the version and push it to upstream:
+
+```sh
+make release
+git push origin master && git push origin --tags
+```
diff --git a/doc/.build b/doc/.build
deleted file mode 100644
index 422718d..0000000
--- a/doc/.build
+++ /dev/null
@@ -1,20 +0,0 @@
-/Users/stueccles/Development/elixir/analytics-elixir/doc/dist/app-091c05798a.css
-/Users/stueccles/Development/elixir/analytics-elixir/doc/dist/app-574613960f.js
-/Users/stueccles/Development/elixir/analytics-elixir/doc/fonts/icomoon.eot
-/Users/stueccles/Development/elixir/analytics-elixir/doc/fonts/icomoon.svg
-/Users/stueccles/Development/elixir/analytics-elixir/doc/fonts/icomoon.ttf
-/Users/stueccles/Development/elixir/analytics-elixir/doc/fonts/icomoon.woff
-index.html
-api-reference.html
-404.html
-dist/sidebar_items.js
-Segment.html
-Segment.Analytics.html
-Segment.Analytics.Alias.html
-Segment.Analytics.Context.html
-Segment.Analytics.Group.html
-Segment.Analytics.Http.html
-Segment.Analytics.Identify.html
-Segment.Analytics.Page.html
-Segment.Analytics.Screen.html
-Segment.Analytics.Track.html
diff --git a/doc/.keep b/doc/.keep
new file mode 100644
index 0000000..e69de29
diff --git a/doc/404.html b/doc/404.html
deleted file mode 100644
index 16b3ebc..0000000
--- a/doc/404.html
+++ /dev/null
@@ -1,89 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>404 – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/404.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="extras">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-<div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-<h2>Page not found</h2>
-
-<p>Sorry, but the page you were trying to get to, does not exist. You
-may want to try searching this site using the sidebar or using our
-<a href="api-reference.html" title="API Reference">API Reference</a> page to find what
-you were looking for.</p>
-
-      <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Alias.html b/doc/Segment.Analytics.Alias.html
deleted file mode 100644
index f2737f9..0000000
--- a/doc/Segment.Analytics.Alias.html
+++ /dev/null
@@ -1,100 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Alias – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Alias.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
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-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
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-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Alias
-        
-        
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-
-      
-
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-
-      
-
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-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Context.html b/doc/Segment.Analytics.Context.html
deleted file mode 100644
index 5357dcd..0000000
--- a/doc/Segment.Analytics.Context.html
+++ /dev/null
@@ -1,176 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Context – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Context.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
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-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
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-    
-
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-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
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-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Context
-        
-        
-      </h1>
-
-      
-
-      
-        <section id="summary" class="details-list">
-          <h1 class="section-heading">
-            <a class="hover-link" href="#summary">
-              <i class="icon-link"></i>
-            </a>
-            Summary
-          </h1>
-          
-
-          
-  <div class="summary-functions summary">
-    <h2>
-      <a href="#functions">Functions</a>
-    </h2>
-    <div class="summary-row">
-  <div class="summary-signature">
-    <a href="#new/0">new()</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#update/1">update(context)</a>
-  </div>
-  
-</div>
-
-  </div>
-
-
-          
-
-          
-
-        </section>
-      
-
-      
-
-      
-        <section id="functions" class="details-list">
-          <h1 class="section-heading">
-            <a class="hover-link" href="#functions">
-              <i class="icon-link"></i>
-            </a>
-            Functions
-          </h1>
-          <div class="detail" id="new/0">
-  
-  <div class="detail-header">
-    <a href="#new/0" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">new()</span>
-    
-    
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-<div class="detail" id="update/1">
-  
-  <div class="detail-header">
-    <a href="#update/1" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">update(context)</span>
-    
-    
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-
-        </section>
-      
-
-      
-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
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-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Group.html b/doc/Segment.Analytics.Group.html
deleted file mode 100644
index 4d8a07a..0000000
--- a/doc/Segment.Analytics.Group.html
+++ /dev/null
@@ -1,100 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Group – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Group.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Group
-        
-        
-      </h1>
-
-      
-
-      
-
-      
-
-      
-
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-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Http.html b/doc/Segment.Analytics.Http.html
deleted file mode 100644
index 876ebee..0000000
--- a/doc/Segment.Analytics.Http.html
+++ /dev/null
@@ -1,1000 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Http – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Http.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Http
-        
-        
-      </h1>
-
-      
-
-      
-        <section id="summary" class="details-list">
-          <h1 class="section-heading">
-            <a class="hover-link" href="#summary">
-              <i class="icon-link"></i>
-            </a>
-            Summary
-          </h1>
-          
-  <div class="summary-types summary">
-    <h2>
-      <a href="#types">Types</a>
-    </h2>
-    <div class="summary-row">
-  <div class="summary-signature">
-    <a href="#t:body/0">body()</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#t:headers/0">headers()</a>
-  </div>
-  
-</div>
-
-  </div>
-
-
-          
-  <div class="summary-functions summary">
-    <h2>
-      <a href="#functions">Functions</a>
-    </h2>
-    <div class="summary-row">
-  <div class="summary-signature">
-    <a href="#delete/3">delete(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a DELETE request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#delete!/3">delete!(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a DELETE request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#get/3">get(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a GET request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#get!/3">get!(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a GET request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#head/3">head(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a HEAD request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#head!/3">head!(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a HEAD request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#options/3">options(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues an OPTIONS request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#options!/3">options!(url, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a OPTIONS request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#patch/4">patch(url, body, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a PATCH request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#patch!/4">patch!(url, body, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a PATCH request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#post/4">post(url, body, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a POST request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#post!/4">post!(url, body, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a POST request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#process_options/1">process_options(options)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#process_request_headers/1">process_request_headers(headers)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#process_url/1">process_url(url)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#put/4">put(url, body, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a PUT request to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#put!/4">put!(url, body, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues a PUT request to the given url, raising an exception in case of
-failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#request/5">request(method, url, body \\ &quot;&quot;, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues an HTTP request with the given method to the given url</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#request!/5">request!(method, url, body \\ &quot;&quot;, headers \\ [], options \\ [])</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Issues an HTTP request with the given method to the given url, raising an
-exception in case of failure</p>
-</div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#start/0">start()</a>
-  </div>
-  
-    <div class="summary-synopsis"><p>Starts HTTPoison and its dependencies</p>
-</div>
-  
-</div>
-
-  </div>
-
-
-          
-
-          
-
-        </section>
-      
-
-      
-        <section id="types" class="details-list">
-          <h1 class="section-heading">
-            <a class="hover-link" href="#types">
-              <i class="icon-link"></i>
-            </a>
-            Types
-          </h1>
-          <div class="types-list">
-            <div class="detail" id="t:body/0">
-  
-  <div class="detail-header">
-    <a href="#t:body/0" class="detail-link" title="Link to this type">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">body()</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre><a href="#t:body/0">body</a> :: binary | {:form, [{atom, any}]} | {:file, binary}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-<div class="detail" id="t:headers/0">
-  
-  <div class="detail-header">
-    <a href="#t:headers/0" class="detail-link" title="Link to this type">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">headers()</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre><a href="#t:headers/0">headers</a> ::
-  [{binary, binary}] |
-  %{optional(binary) => binary}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-
-          </div>
-        </section>
-      
-
-      
-        <section id="functions" class="details-list">
-          <h1 class="section-heading">
-            <a class="hover-link" href="#functions">
-              <i class="icon-link"></i>
-            </a>
-            Functions
-          </h1>
-          <div class="detail" id="delete/3">
-  
-    <span id="delete/1" />
-  
-    <span id="delete/2" />
-  
-  <div class="detail-header">
-    <a href="#delete/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">delete(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>delete(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a DELETE request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="delete!/3">
-  
-    <span id="delete!/1" />
-  
-    <span id="delete!/2" />
-  
-  <div class="detail-header">
-    <a href="#delete!/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">delete!(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>delete!(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a DELETE request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="get/3">
-  
-    <span id="get/1" />
-  
-    <span id="get/2" />
-  
-  <div class="detail-header">
-    <a href="#get/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">get(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>get(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a GET request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="get!/3">
-  
-    <span id="get!/1" />
-  
-    <span id="get!/2" />
-  
-  <div class="detail-header">
-    <a href="#get!/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">get!(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>get!(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a GET request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="head/3">
-  
-    <span id="head/1" />
-  
-    <span id="head/2" />
-  
-  <div class="detail-header">
-    <a href="#head/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">head(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>head(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a HEAD request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="head!/3">
-  
-    <span id="head!/1" />
-  
-    <span id="head!/2" />
-  
-  <div class="detail-header">
-    <a href="#head!/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">head!(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>head!(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a HEAD request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="options/3">
-  
-    <span id="options/1" />
-  
-    <span id="options/2" />
-  
-  <div class="detail-header">
-    <a href="#options/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">options(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>options(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues an OPTIONS request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="options!/3">
-  
-    <span id="options!/1" />
-  
-    <span id="options!/2" />
-  
-  <div class="detail-header">
-    <a href="#options!/3" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">options!(url, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>options!(binary, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a OPTIONS request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="patch/4">
-  
-    <span id="patch/2" />
-  
-    <span id="patch/3" />
-  
-  <div class="detail-header">
-    <a href="#patch/4" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">patch(url, body, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>patch(binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a PATCH request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="patch!/4">
-  
-    <span id="patch!/2" />
-  
-    <span id="patch!/3" />
-  
-  <div class="detail-header">
-    <a href="#patch!/4" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">patch!(url, body, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>patch!(binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a PATCH request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="post/4">
-  
-    <span id="post/2" />
-  
-    <span id="post/3" />
-  
-  <div class="detail-header">
-    <a href="#post/4" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">post(url, body, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>post(binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a POST request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="post!/4">
-  
-    <span id="post!/2" />
-  
-    <span id="post!/3" />
-  
-  <div class="detail-header">
-    <a href="#post!/4" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">post!(url, body, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>post!(binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a POST request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="process_options/1">
-  
-  <div class="detail-header">
-    <a href="#process_options/1" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">process_options(options)</span>
-    
-    
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-<div class="detail" id="process_request_headers/1">
-  
-  <div class="detail-header">
-    <a href="#process_request_headers/1" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">process_request_headers(headers)</span>
-    
-    
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-<div class="detail" id="process_url/1">
-  
-  <div class="detail-header">
-    <a href="#process_url/1" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">process_url(url)</span>
-    
-    
-    
-  </div>
-  <section class="docstring">
-    
-  </section>
-</div>
-<div class="detail" id="put/4">
-  
-    <span id="put/2" />
-  
-    <span id="put/3" />
-  
-  <div class="detail-header">
-    <a href="#put/4" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">put(url, body, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>put(binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a PUT request to the given url.</p>
-<p>Returns <code class="inline">{:ok, response}</code> if the request is successful, <code class="inline">{:error, reason}</code>
-otherwise.</p>
-<p>See <a href="#request/5"><code class="inline">request/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="put!/4">
-  
-    <span id="put!/2" />
-  
-    <span id="put!/3" />
-  
-  <div class="detail-header">
-    <a href="#put!/4" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">put!(url, body, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>put!(binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> |
-  <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues a PUT request to the given url, raising an exception in case of
-failure.</p>
-<p>If the request does not fail, the response is returned.</p>
-<p>See <a href="#request!/5"><code class="inline">request!/5</code></a> for more detailed information.</p>
-
-  </section>
-</div>
-<div class="detail" id="request/5">
-  
-    <span id="request/2" />
-  
-    <span id="request/3" />
-  
-    <span id="request/4" />
-  
-  <div class="detail-header">
-    <a href="#request/5" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">request(method, url, body \\ &quot;&quot;, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>request(atom, binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) ::
-  {:ok, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a> | <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.AsyncResponse.html#t:t/0">HTTPoison.AsyncResponse.t</a>} |
-  {:error, <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Error.html#t:t/0">HTTPoison.Error.t</a>}</pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues an HTTP request with the given method to the given url.</p>
-<p>This function is usually used indirectly by <a href="#get/3"><code class="inline">get/3</code></a>, <a href="#post/4"><code class="inline">post/4</code></a>, <a href="#put/4"><code class="inline">put/4</code></a>, etc</p>
-<p>Args:</p>
-<ul>
-<li><code class="inline">method</code> - HTTP method as an atom (<code class="inline">:get</code>, <code class="inline">:head</code>, <code class="inline">:post</code>, <code class="inline">:put</code>,
-<code class="inline">:delete</code>, etc.)
-</li>
-<li><code class="inline">url</code> - target url as a binary string or char list
-</li>
-<li><code class="inline">body</code> - request body. See more below
-</li>
-<li><code class="inline">headers</code> - HTTP headers as an orddict (e.g., <code class="inline">[{&quot;Accept&quot;, &quot;application/json&quot;}]</code>)
-</li>
-<li><code class="inline">options</code> - Keyword list of options
-</li>
-</ul>
-<p>Body:</p>
-<ul>
-<li>binary, char list or an iolist
-</li>
-<li><code class="inline">{:form, [{K, V}, ...]}</code> - send a form url encoded
-</li>
-<li><code class="inline">{:file, &quot;/path/to/file&quot;}</code> - send a file
-</li>
-</ul>
-<p>Options:</p>
-<ul>
-<li><code class="inline">:timeout</code> - timeout to establish a connection, in milliseconds. Default is 8000
-</li>
-<li><code class="inline">:recv_timeout</code> - timeout used when receiving a connection. Default is 5000
-</li>
-<li><code class="inline">:stream_to</code> - a PID to stream the response to
-</li>
-<li><code class="inline">:proxy</code> - a proxy to be used for the request; it can be a regular url
-or a <code class="inline">{Host, Proxy}</code> tuple
-</li>
-<li><code class="inline">:proxy_auth</code> - proxy authentication <code class="inline">{User, Password}</code> tuple
-</li>
-<li><code class="inline">:ssl</code> - SSL options supported by the <code class="inline">ssl</code> erlang module
-</li>
-<li><code class="inline">:follow_redirect</code> - a boolean that causes redirects to be followed
-</li>
-<li><code class="inline">:max_redirect</code> - an integer denoting the maximum number of redirects to follow
-</li>
-<li><code class="inline">:params</code> - an enumerable consisting of two-item tuples that will be appended to the url as query string parameters
-</li>
-</ul>
-<p>Timeouts can be an integer or <code class="inline">:infinity</code></p>
-<p>This function returns <code class="inline">{:ok, response}</code> or <code class="inline">{:ok, async_response}</code> if the
-request is successful, <code class="inline">{:error, reason}</code> otherwise.</p>
-<h2 id="request/5-examples" class="section-heading">
-  <a href="#request/5-examples" class="hover-link"><i class="icon-link"></i></a>
-  Examples
-</h2>
-
-<pre><code class="elixir">request(:post, &quot;https://my.website.com&quot;, &quot;{\&quot;foo\&quot;: 3}&quot;, [{&quot;Accept&quot;, &quot;application/json&quot;}])</code></pre>
-
-  </section>
-</div>
-<div class="detail" id="request!/5">
-  
-    <span id="request!/2" />
-  
-    <span id="request!/3" />
-  
-    <span id="request!/4" />
-  
-  <div class="detail-header">
-    <a href="#request!/5" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">request!(method, url, body \\ &quot;&quot;, headers \\ [], options \\ [])</span>
-    
-    
-    
-      <div class="specs">
-        
-          <pre>request!(atom, binary, <a href="#t:body/0">body</a>, <a href="#t:headers/0">headers</a>, <a href="http://elixir-lang.org/docs/stable/elixir/Keyword.html#t:t/0">Keyword.t</a>) :: <a href="https://hexdocs.pm/httpoison/0.8.3/HTTPoison.Response.html#t:t/0">HTTPoison.Response.t</a></pre>
-        
-      </div>
-    
-  </div>
-  <section class="docstring">
-    <p>Issues an HTTP request with the given method to the given url, raising an
-exception in case of failure.</p>
-<p><a href="#request!/5"><code class="inline">request!/5</code></a> works exactly like <a href="#request/5"><code class="inline">request/5</code></a> but it returns just the
-response in case of a successful request, raising an exception in case the
-request fails.</p>
-
-  </section>
-</div>
-<div class="detail" id="start/0">
-  
-  <div class="detail-header">
-    <a href="#start/0" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
-    </a>
-    <span class="signature">start()</span>
-    
-    
-    
-  </div>
-  <section class="docstring">
-    <p>Starts HTTPoison and its dependencies.</p>
-
-  </section>
-</div>
-
-        </section>
-      
-
-      
-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Identify.html b/doc/Segment.Analytics.Identify.html
deleted file mode 100644
index aa080f8..0000000
--- a/doc/Segment.Analytics.Identify.html
+++ /dev/null
@@ -1,100 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Identify – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Identify.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Identify
-        
-        
-      </h1>
-
-      
-
-      
-
-      
-
-      
-
-      
-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Page.html b/doc/Segment.Analytics.Page.html
deleted file mode 100644
index ff70788..0000000
--- a/doc/Segment.Analytics.Page.html
+++ /dev/null
@@ -1,100 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Page – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Page.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Page
-        
-        
-      </h1>
-
-      
-
-      
-
-      
-
-      
-
-      
-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Screen.html b/doc/Segment.Analytics.Screen.html
deleted file mode 100644
index 0d0561f..0000000
--- a/doc/Segment.Analytics.Screen.html
+++ /dev/null
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-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Screen – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Screen.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Screen
-        
-        
-      </h1>
-
-      
-
-      
-
-      
-
-      
-
-      
-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.Track.html b/doc/Segment.Analytics.Track.html
deleted file mode 100644
index abce2fb..0000000
--- a/doc/Segment.Analytics.Track.html
+++ /dev/null
@@ -1,100 +0,0 @@
-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics.Track – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.Track.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics.Track
-        
-        
-      </h1>
-
-      
-
-      
-
-      
-
-      
-
-      
-
-      
-          <footer class="footer">
-        <p>
-          <span class="line">
-            Built using
-            <a href="https://github.com/elixir-lang/ex_doc" title="ExDoc" rel="help" target="_blank">ExDoc</a> (v0.14.3),
-          </span>
-          <span class="line">
-            designed by
-            <a href="https://twitter.com/dignifiedquire" target="_blank" title="@dignifiedquire">Friedel Ziegelmayer</a>.
-            </span>
-        </p>
-        <button class="night-mode-toggle" />
-      </footer>
-    </div>
-  </div>
-</section>
-</div>
-  <script src="dist/app-574613960f.js"></script>
-  </body>
-</html>
-
diff --git a/doc/Segment.Analytics.html b/doc/Segment.Analytics.html
deleted file mode 100644
index f0e0b04..0000000
--- a/doc/Segment.Analytics.html
+++ /dev/null
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-    <!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <meta http-equiv="x-ua-compatible" content="ie=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <meta name="generator" content="ExDoc v0.14.3">
-    <title>Segment.Analytics – segment v0.1.1</title>
-    <link rel="stylesheet" href="dist/app-091c05798a.css" />
-    
-      <link rel="canonical" href="https://hexdocs.pm/segment/Segment.Analytics.html" />
-    
-    <script src="dist/sidebar_items.js"></script>
-  </head>
-  <body data-type="modules">
-    <script>if(localStorage.getItem('night-mode')) document.body.className += ' night-mode';</script>
-
-    <div class="main">
-<button class="sidebar-toggle">
-  <i class="icon-menu"></i>
-</button>
-<section class="sidebar">
-
-  
-  <a href="api-reference.html" class="sidebar-projectLink">
-    <div class="sidebar-projectDetails">
-      <h1 class="sidebar-projectName">
-        segment
-      </h1>
-      <h2 class="sidebar-projectVersion">
-        v0.1.1
-      </h2>
-    </div>
-    
-  </a>
-
-  <div class="sidebar-search">
-    <i class="icon-search"></i>
-    <input type="text" class="sidebar-searchInput" placeholder="search" autocomplete="off" />
-  </div>
-
-  <ul class="sidebar-listNav">
-    <li><a id="extras-list" href="#full-list">Pages</a></li>
-
-    
-      <li><a id="modules-list" href="#full-list">Modules</a></li>
-    
-
-    
-
-    
-  </ul>
-  <div class="gradient"></div>
-  <ul id="full-list" class="sidebar-fullList"></ul>
-</section>
-
-<section class="content">
-  <div class="content-outer">
-    <div id="content" class="content-inner">
-
-
-      <h1>
-        <small class="visible-xs">segment v0.1.1</small>
-        Segment.Analytics
-        
-        
-      </h1>
-
-      
-
-      
-        <section id="summary" class="details-list">
-          <h1 class="section-heading">
-            <a class="hover-link" href="#summary">
-              <i class="icon-link"></i>
-            </a>
-            Summary
-          </h1>
-          
-
-          
-  <div class="summary-functions summary">
-    <h2>
-      <a href="#functions">Functions</a>
-    </h2>
-    <div class="summary-row">
-  <div class="summary-signature">
-    <a href="#alias/1">alias(alias)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#alias/3">alias(user_id, previous_id, context \\ Context.new())</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#group/1">group(group)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#group/4">group(user_id, group_id, traits \\ %{}, context \\ Context.new())</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#identify/1">identify(identify)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#identify/3">identify(user_id, traits \\ %{}, context \\ Context.new())</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
-    <a href="#page/1">page(page)</a>
-  </div>
-  
-</div>
-<div class="summary-row">
-  <div class="summary-signature">
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diff --git a/doc/Segment.html b/doc/Segment.html
deleted file mode 100644
index e7c1808..0000000
--- a/doc/Segment.html
+++ /dev/null
@@ -1,228 +0,0 @@
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-<html>
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-            Summary
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-      <a href="#types">Types</a>
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-    <div class="summary-row">
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-    <a href="#t:status/0">status()</a>
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-    <h2>
-      <a href="#functions">Functions</a>
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-
-
-          
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-
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-            <a class="hover-link" href="#functions">
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-    <a href="#start_link/1" class="detail-link" title="Link to this function">
-      <i class="icon-link"></i>
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-    <span class="signature">start_link(write_key)</span>
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-    
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diff --git a/doc/api-reference.html b/doc/api-reference.html
deleted file mode 100644
index a856c25..0000000
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diff --git a/doc/fonts/icomoon.svg b/doc/fonts/icomoon.svg
deleted file mode 100644
index b34e289..0000000
--- a/doc/fonts/icomoon.svg
+++ /dev/null
@@ -1,16 +0,0 @@
-<?xml version="1.0" standalone="no"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
-<svg xmlns="http://www.w3.org/2000/svg">
-<metadata>Generated by IcoMoon</metadata>
-<defs>
-<font id="icomoon" horiz-adv-x="512">
-<font-face units-per-em="512" ascent="480" descent="-32" />
-<missing-glyph horiz-adv-x="512" />
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diff --git a/doc/index.html b/doc/index.html
deleted file mode 100644
index 6f4e9e5..0000000
--- a/doc/index.html
+++ /dev/null
@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <meta charset="utf-8">
-    <title>segment v0.1.1 – Documentation</title>
-    <meta http-equiv="refresh" content="0; url=api-reference.html">
-    <meta name="robots" content="noindex">
-    <meta name="generator" content="ExDoc v0.14.3">
-  </head>
-  <body></body>
-</html>
diff --git a/lib/segment/model.ex b/lib/segment/model.ex
index 2a5f687..67eed9e 100644
--- a/lib/segment/model.ex
+++ b/lib/segment/model.ex
@@ -17,7 +17,6 @@ defmodule Segment.Analytics.Track do
     :properties,
     :context,
     :timestamp,
-    :integrations,
     :anonymousId,
     :messageId,
     type: @method
@@ -33,7 +32,6 @@ defmodule Segment.Analytics.Identify do
     :traits,
     :context,
     :timestamp,
-    :integrations,
     :anonymousId,
     :messageId,
     type: @method
@@ -44,7 +42,7 @@ defmodule Segment.Analytics.Alias do
   @derive [Poison.Encoder]
   @method "alias"
 
-  defstruct [:userId, :previousId, :context, :timestamp, :integrations, type: @method]
+  defstruct [:userId, :previousId, :context, :timestamp, type: @method]
 end
 
 defmodule Segment.Analytics.Page do
@@ -57,7 +55,6 @@ defmodule Segment.Analytics.Page do
     :properties,
     :context,
     :timestamp,
-    :integrations,
     :anonymousId,
     :messageId,
     type: @method
@@ -74,7 +71,6 @@ defmodule Segment.Analytics.Screen do
     :properties,
     :context,
     :timestamp,
-    :integrations,
     :anonymousId,
     :messageId,
     type: @method
@@ -91,7 +87,6 @@ defmodule Segment.Analytics.Group do
     :traits,
     :context,
     :timestamp,
-    :integrations,
     :anonymousId,
     :messageId,
     type: @method
@@ -121,13 +116,9 @@ defmodule Segment.Analytics.Context do
 
   defstruct [
     :app,
-    :campaign,
-    :device,
     :ip,
     :library,
-    :locale,
     :location,
-    :network,
     :os,
     :page,
     :referrer,
diff --git a/mix.exs b/mix.exs
index 97c5761..287eb58 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,15 +1,18 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
+  @version "0.2.0"
+  @source_url "https://github.com/FindHotel/analytics-elixir"
+
   def project do
     [
       app: :segment,
-      version: "0.2.0",
-      elixir: "~> 1.0",
       deps: deps(),
-      name: "analytics_elixir",
       description: "analytics_elixir",
-      package: package()
+      elixir: "~> 1.0",
+      name: "analytics_elixir",
+      package: package(),
+      version: @version
     ]
   end
 
@@ -33,24 +36,28 @@ defmodule AnalyticsElixir.Mixfile do
     [
       {:httpoison, "~> 1.4"},
       {:poison, "~> 4.0"},
+      {:uuid, "~> 1.1"},
+
+      # Dev
       {:ex_doc, "~> 0.19", only: :dev, runtime: false},
-      {:bypass, "~> 1.0", only: :test},
-      {:uuid, "~> 1.1"}
+
+      # Test
+      {:bypass, "~> 1.0", only: :test}
     ]
   end
 
   defp package do
     # These are the default files included in the package
     [
-      files: ["lib", "mix.exs", "README*", "LICENSE*"],
+      files: ["lib", "mix.exs", "README*", "LICENSE*", "CHANGELOG*"],
+      licenses: ["MIT"],
+      links: %{"GitHub" => @source_url},
       maintainers: [
         "Antonio Lorusso",
         "Felipe Vieira",
         "Fernando Hamasaki de Amorim",
         "Sergio Rodrigues"
-      ],
-      licenses: ["MIT"],
-      links: %{"GitHub" => "https://github.com/FindHotel/analytics-elixir"}
+      ]
     ]
   end
 end
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 4653089..61f5081 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -22,28 +22,23 @@ defmodule Segment.Analytics.AnalyticsTest do
                      "type" => "track",
                      "timestamp" => nil,
                      "properties" => %{},
-                     "integrations" => nil,
                      "event" => "test1",
                      "context" => %{
-                       "userAgent" => nil,
-                       "traits" => nil,
-                       "timezone" => nil,
-                       "screen" => nil,
-                       "referrer" => nil,
-                       "page" => nil,
-                       "os" => nil,
-                       "network" => nil,
-                       "location" => nil,
-                       "locale" => nil,
+                       "app" => nil,
+                       "ip" => nil,
                        "library" => %{
-                         "version" => "0.2.0",
+                         "name" => "analytics_elixir",
                          "transport" => "http",
-                         "name" => "analytics_elixir"
+                         "version" => "0.2.0"
                        },
-                       "ip" => nil,
-                       "device" => nil,
-                       "campaign" => nil,
-                       "app" => nil
+                       "location" => nil,
+                       "os" => nil,
+                       "page" => nil,
+                       "referrer" => nil,
+                       "screen" => nil,
+                       "timezone" => nil,
+                       "traits" => nil,
+                       "userAgent" => nil
                      },
                      "anonymousId" => nil
                    }
@@ -75,34 +70,29 @@ defmodule Segment.Analytics.AnalyticsTest do
         assert %{
                  "batch" => [
                    %{
-                     "userId" => nil,
-                     "type" => "track",
-                     "timestamp" => nil,
-                     "properties" => %{},
-                     "integrations" => nil,
-                     "event" => "test1",
+                     "anonymousId" => nil,
                      "context" => %{
-                       "userAgent" => nil,
-                       "traits" => nil,
-                       "timezone" => nil,
-                       "screen" => nil,
-                       "referrer" => nil,
-                       "page" => nil,
-                       "os" => nil,
-                       "network" => nil,
-                       "location" => nil,
-                       "locale" => nil,
+                       "app" => nil,
+                       "ip" => nil,
                        "library" => %{
-                         "version" => "0.2.0",
+                         "name" => "analytics_elixir",
                          "transport" => "http",
-                         "name" => "analytics_elixir"
+                         "version" => "0.2.0"
                        },
-                       "ip" => nil,
-                       "device" => nil,
-                       "campaign" => nil,
-                       "app" => nil
+                       "location" => nil,
+                       "os" => nil,
+                       "page" => nil,
+                       "referrer" => nil,
+                       "screen" => nil,
+                       "timezone" => nil,
+                       "traits" => nil,
+                       "userAgent" => nil
                      },
-                     "anonymousId" => nil
+                     "event" => "test1",
+                     "properties" => %{},
+                     "timestamp" => nil,
+                     "type" => "track",
+                     "userId" => nil
                    }
                  ]
                } = Poison.decode!(received_body)
@@ -142,28 +132,23 @@ defmodule Segment.Analytics.AnalyticsTest do
                      "type" => "track",
                      "timestamp" => nil,
                      "properties" => %{},
-                     "integrations" => nil,
                      "event" => "test1",
                      "context" => %{
-                       "userAgent" => nil,
-                       "traits" => nil,
-                       "timezone" => nil,
-                       "screen" => nil,
-                       "referrer" => nil,
-                       "page" => nil,
-                       "os" => nil,
-                       "network" => nil,
-                       "location" => nil,
-                       "locale" => nil,
+                       "app" => nil,
+                       "ip" => nil,
                        "library" => %{
                          "version" => "0.2.0",
                          "transport" => "http",
                          "name" => "analytics_elixir"
                        },
-                       "ip" => nil,
-                       "device" => nil,
-                       "campaign" => nil,
-                       "app" => nil
+                       "location" => nil,
+                       "os" => nil,
+                       "page" => nil,
+                       "referrer" => nil,
+                       "screen" => nil,
+                       "timezone" => nil,
+                       "traits" => nil,
+                       "userAgent" => nil
                      },
                      "anonymousId" => nil
                    }

From 032659eb74dc073093594687e5febf0dc46fcc3e Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Mon, 28 Sep 2020 15:38:27 +0200
Subject: [PATCH 14/33] Bump to 0.2.1

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5fe94df..39f69ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.2.1] - 2020-09-28
 ### Removed
 - Removes unused fields.
 
@@ -18,6 +20,7 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 ### Added
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/0.2.0...master
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/0.2.1...master
+[0.2.1]: https://github.com/FindHotel/analytics-elixir/compare/0.2.0...0.2.1
 [0.2.0]: https://github.com/FindHotel/analytics-elixir/compare/v0.1.1...0.2.0
 [v0.1.1]: https://github.com/FindHotel/analytics-elixir/releases/tag/v0.1.1
diff --git a/mix.exs b/mix.exs
index 287eb58..216b3c2 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "0.2.0"
+  @version "0.2.1"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From 93450dc7bab43dede97f86a34ba2521af6fb3073 Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Tue, 29 Sep 2020 16:24:52 +0200
Subject: [PATCH 15/33] Fix tests that depends on current version

---
 test/segment/analytics_test.exs | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 61f5081..9c91412 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -6,12 +6,13 @@ defmodule Segment.Analytics.AnalyticsTest do
   setup do
     bypass = Bypass.open()
     start_supervised({Segment, [key: "123", endpoint: endpoint_url(bypass.port)]})
+    version = Mix.Project.get().project[:version]
 
-    {:ok, bypass: bypass}
+    {:ok, bypass: bypass, version: version}
   end
 
   describe "track/1" do
-    test "sends a track event", %{bypass: bypass} do
+    test "sends a track event", %{bypass: bypass, version: version} do
       Bypass.expect(bypass, fn conn ->
         {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
 
@@ -29,7 +30,7 @@ defmodule Segment.Analytics.AnalyticsTest do
                        "library" => %{
                          "name" => "analytics_elixir",
                          "transport" => "http",
-                         "version" => "0.2.0"
+                         "version" => ^version
                        },
                        "location" => nil,
                        "os" => nil,
@@ -63,7 +64,7 @@ defmodule Segment.Analytics.AnalyticsTest do
   end
 
   describe "call/2" do
-    test "sends an event", %{bypass: bypass} do
+    test "sends an event", %{bypass: bypass, version: version} do
       Bypass.expect(bypass, fn conn ->
         {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
 
@@ -77,7 +78,7 @@ defmodule Segment.Analytics.AnalyticsTest do
                        "library" => %{
                          "name" => "analytics_elixir",
                          "transport" => "http",
-                         "version" => "0.2.0"
+                         "version" => ^version
                        },
                        "location" => nil,
                        "os" => nil,
@@ -113,7 +114,7 @@ defmodule Segment.Analytics.AnalyticsTest do
       Task.await(task)
     end
 
-    test "sends an event using endpoint and key from options", %{bypass: bypass} do
+    test "sends an event using endpoint and key from options", %{bypass: bypass, version: version} do
       Bypass.expect(bypass, fn _conn ->
         flunk("#{endpoint_url(bypass.port)} shouldn't be called")
       end)
@@ -137,7 +138,7 @@ defmodule Segment.Analytics.AnalyticsTest do
                        "app" => nil,
                        "ip" => nil,
                        "library" => %{
-                         "version" => "0.2.0",
+                         "version" => ^version,
                          "transport" => "http",
                          "name" => "analytics_elixir"
                        },

From 00d911561c6adcd874e01d021ab42239a69f4b0c Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Thu, 8 Oct 2020 10:14:13 +0200
Subject: [PATCH 16/33] Add version field (#10)

---
 CHANGELOG.md         |  4 ++++
 lib/segment/model.ex | 49 ++++++++++++++++++++++++--------------------
 2 files changed, 31 insertions(+), 22 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 39f69ab..ee58dc1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- Add version field to `Segment.Analytics.Track`, `Segment.Analytics.Identify`,
+`Segment.Analytics.Alias`, `Segment.Analytics.Page`, `Segment.Analytics.Screen`
+and `Segment.Analytics.Group`.
 
 ## [0.2.1] - 2020-09-28
 ### Removed
diff --git a/lib/segment/model.ex b/lib/segment/model.ex
index 67eed9e..6c912ec 100644
--- a/lib/segment/model.ex
+++ b/lib/segment/model.ex
@@ -12,13 +12,14 @@ defmodule Segment.Analytics.Track do
   @method "track"
 
   defstruct [
-    :userId,
+    :anonymousId,
+    :context,
     :event,
+    :messageId,
     :properties,
-    :context,
     :timestamp,
-    :anonymousId,
-    :messageId,
+    :userId,
+    :version,
     type: @method
   ]
 end
@@ -28,12 +29,13 @@ defmodule Segment.Analytics.Identify do
   @method "identify"
 
   defstruct [
-    :userId,
-    :traits,
-    :context,
-    :timestamp,
     :anonymousId,
+    :context,
     :messageId,
+    :timestamp,
+    :traits,
+    :userId,
+    :version,
     type: @method
   ]
 end
@@ -42,7 +44,7 @@ defmodule Segment.Analytics.Alias do
   @derive [Poison.Encoder]
   @method "alias"
 
-  defstruct [:userId, :previousId, :context, :timestamp, type: @method]
+  defstruct [:context, :previousId, :timestamp, :userId, :version, type: @method]
 end
 
 defmodule Segment.Analytics.Page do
@@ -50,13 +52,14 @@ defmodule Segment.Analytics.Page do
   @method "page"
 
   defstruct [
-    :userId,
+    :anonymousId,
+    :context,
+    :messageId,
     :name,
     :properties,
-    :context,
     :timestamp,
-    :anonymousId,
-    :messageId,
+    :userId,
+    :version,
     type: @method
   ]
 end
@@ -66,13 +69,14 @@ defmodule Segment.Analytics.Screen do
   @method "screen"
 
   defstruct [
-    :userId,
+    :anonymousId,
+    :context,
+    :messageId,
     :name,
     :properties,
-    :context,
     :timestamp,
-    :anonymousId,
-    :messageId,
+    :userId,
+    :version,
     type: @method
   ]
 end
@@ -82,13 +86,14 @@ defmodule Segment.Analytics.Group do
   @method "group"
 
   defstruct [
-    :userId,
-    :groupId,
-    :traits,
-    :context,
-    :timestamp,
     :anonymousId,
+    :context,
+    :groupId,
     :messageId,
+    :timestamp,
+    :traits,
+    :userId,
+    :version,
     type: @method
   ]
 end

From 87f9928c3f8263a47ecd237c42d99aa246bbd5c6 Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Thu, 8 Oct 2020 10:14:47 +0200
Subject: [PATCH 17/33] Bump to 0.2.2

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee58dc1..efd78a7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [0.2.2] - 2020-10-08
 ### Added
 - Add version field to `Segment.Analytics.Track`, `Segment.Analytics.Identify`,
 `Segment.Analytics.Alias`, `Segment.Analytics.Page`, `Segment.Analytics.Screen`
@@ -24,7 +26,8 @@ and `Segment.Analytics.Group`.
 ### Added
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/0.2.1...master
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/0.2.2...master
+[0.2.2]: https://github.com/FindHotel/analytics-elixir/compare/0.2.1...0.2.2
 [0.2.1]: https://github.com/FindHotel/analytics-elixir/compare/0.2.0...0.2.1
 [0.2.0]: https://github.com/FindHotel/analytics-elixir/compare/v0.1.1...0.2.0
 [v0.1.1]: https://github.com/FindHotel/analytics-elixir/releases/tag/v0.1.1
diff --git a/mix.exs b/mix.exs
index 216b3c2..3687674 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "0.2.1"
+  @version "0.2.2"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From 0f3c575d146c0a6eca0ba9c5c0172bacf2f9c6e8 Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Fri, 9 Oct 2020 16:41:16 +0200
Subject: [PATCH 18/33] Returns tuple with `:ok` or `:error` and a JSON string
 to enable clients to handle validation errors. (#11)

---
 CHANGELOG.md                    |   3 +
 lib/segment/analytics.ex        |  14 +-
 test/segment/analytics_test.exs | 225 +++++++++++++-------------------
 test/test_helper.exs            |   2 +-
 4 files changed, 105 insertions(+), 139 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index efd78a7..ca06cc0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- Returns tuple with `:ok` or `:error` and a JSON string to enable clients
+to handle validation errors.
 
 ## [0.2.2] - 2020-10-08
 ### Added
diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index fcfc390..1f1e416 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -105,16 +105,24 @@ defmodule Segment.Analytics do
 
   defp post_to_segment(body, options) do
     Http.post("", body, options)
-    |> log_result(body)
+    |> log_and_return(body)
   end
 
   # log success responses
-  defp log_result({_, %{status_code: code}}, body) when code in 200..299 do
+  defp log_and_return({_, %{body: response_body, status_code: code}}, body)
+       when code in 200..299 do
     Logger.debug("[#{__MODULE__}] call success: #{code} with body: #{body}")
+    {:ok, response_body}
   end
 
   # log failed responses
-  defp log_result(error, body) do
+  defp log_and_return({_, %{body: response_body}} = error, body) do
     Logger.debug("[#{__MODULE__}] call failed: #{inspect(error)} with body: #{body}")
+    {:error, response_body}
+  end
+
+  defp log_and_return({_, %{reason: reason}} = error, body) do
+    Logger.debug("[#{__MODULE__}] call failed: #{inspect(error)} with body: #{body}")
+    {:error, Enum.join([~s({"reason":"), inspect(reason), ~s("})])}
   end
 end
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 9c91412..13926d4 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -8,170 +8,125 @@ defmodule Segment.Analytics.AnalyticsTest do
     start_supervised({Segment, [key: "123", endpoint: endpoint_url(bypass.port)]})
     version = Mix.Project.get().project[:version]
 
-    {:ok, bypass: bypass, version: version}
-  end
-
-  describe "track/1" do
-    test "sends a track event", %{bypass: bypass, version: version} do
-      Bypass.expect(bypass, fn conn ->
-        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
-
-        assert %{
-                 "batch" => [
-                   %{
-                     "userId" => nil,
-                     "type" => "track",
-                     "timestamp" => nil,
-                     "properties" => %{},
-                     "event" => "test1",
-                     "context" => %{
-                       "app" => nil,
-                       "ip" => nil,
-                       "library" => %{
-                         "name" => "analytics_elixir",
-                         "transport" => "http",
-                         "version" => ^version
-                       },
-                       "location" => nil,
-                       "os" => nil,
-                       "page" => nil,
-                       "referrer" => nil,
-                       "screen" => nil,
-                       "timezone" => nil,
-                       "traits" => nil,
-                       "userAgent" => nil
-                     },
-                     "anonymousId" => nil
-                   }
-                 ]
-               } = Poison.decode!(received_body)
-
-        # messageId and sentAt are not asserted
-
-        Plug.Conn.resp(conn, 200, "")
-      end)
-
-      event = %Segment.Analytics.Track{
-        userId: nil,
-        event: "test1",
-        properties: %{},
-        context: %Segment.Analytics.Context{}
-      }
-
-      task = Segment.Analytics.track(event)
-      Task.await(task)
-    end
+    event = %Segment.Analytics.Track{
+      userId: nil,
+      event: "test1",
+      properties: %{},
+      context: %Segment.Analytics.Context{}
+    }
+
+    expected_request_body = %{
+      "batch" => [
+        %{
+          "anonymousId" => nil,
+          "context" => %{
+            "app" => nil,
+            "ip" => nil,
+            "library" => %{
+              "name" => "analytics_elixir",
+              "transport" => "http",
+              "version" => version
+            },
+            "location" => nil,
+            "os" => nil,
+            "page" => nil,
+            "referrer" => nil,
+            "screen" => nil,
+            "timezone" => nil,
+            "traits" => nil,
+            "userAgent" => nil
+          },
+          "event" => "test1",
+          "properties" => %{},
+          "timestamp" => nil,
+          "type" => "track",
+          "userId" => nil,
+          "version" => nil
+        }
+      ]
+    }
+
+    expected_response = ~s({"another": {"json": ["response"]}})
+
+    {:ok,
+     bypass: bypass,
+     event: event,
+     expected_request_body: expected_request_body,
+     expected_response: expected_response}
   end
 
   describe "call/2" do
-    test "sends an event", %{bypass: bypass, version: version} do
+    test "sends an event, and returns the response", %{
+      bypass: bypass,
+      event: event,
+      expected_request_body: expected_request_body,
+      expected_response: expected_response
+    } do
       Bypass.expect(bypass, fn conn ->
         {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
 
-        assert %{
-                 "batch" => [
-                   %{
-                     "anonymousId" => nil,
-                     "context" => %{
-                       "app" => nil,
-                       "ip" => nil,
-                       "library" => %{
-                         "name" => "analytics_elixir",
-                         "transport" => "http",
-                         "version" => ^version
-                       },
-                       "location" => nil,
-                       "os" => nil,
-                       "page" => nil,
-                       "referrer" => nil,
-                       "screen" => nil,
-                       "timezone" => nil,
-                       "traits" => nil,
-                       "userAgent" => nil
-                     },
-                     "event" => "test1",
-                     "properties" => %{},
-                     "timestamp" => nil,
-                     "type" => "track",
-                     "userId" => nil
-                   }
-                 ]
-               } = Poison.decode!(received_body)
-
         # messageId and sentAt are not asserted
+        %{"batch" => [received_event | _received_events]} =
+          received_body
+          |> Poison.decode!()
+          |> Map.delete("sentAt")
 
-        Plug.Conn.resp(conn, 200, "")
-      end)
+        received_event = Map.delete(received_event, "messageId")
 
-      event = %Segment.Analytics.Track{
-        userId: nil,
-        event: "test1",
-        properties: %{},
-        context: %Segment.Analytics.Context{}
-      }
+        assert %{"batch" => [received_event]} == expected_request_body
+        Plug.Conn.resp(conn, 200, expected_response)
+      end)
 
       task = Segment.Analytics.call(event)
-      Task.await(task)
+      assert {:ok, expected_response} == Task.await(task)
     end
+  end
 
-    test "sends an event using endpoint and key from options", %{bypass: bypass, version: version} do
+  describe "call/2 when another endpoint and key were given" do
+    setup %{bypass: bypass} do
       Bypass.expect(bypass, fn _conn ->
         flunk("#{endpoint_url(bypass.port)} shouldn't be called")
       end)
 
       Bypass.pass(bypass)
 
-      another_bypass = Bypass.open()
+      {:ok, bypass: Bypass.open()}
+    end
 
-      Bypass.expect(another_bypass, fn conn ->
+    test "sends an event using endpoint and key from options, and returns the response", %{
+      bypass: bypass,
+      event: event,
+      expected_request_body: expected_request_body,
+      expected_response: expected_response
+    } do
+      Bypass.expect(bypass, fn conn ->
         {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
 
-        assert %{
-                 "batch" => [
-                   %{
-                     "userId" => nil,
-                     "type" => "track",
-                     "timestamp" => nil,
-                     "properties" => %{},
-                     "event" => "test1",
-                     "context" => %{
-                       "app" => nil,
-                       "ip" => nil,
-                       "library" => %{
-                         "version" => ^version,
-                         "transport" => "http",
-                         "name" => "analytics_elixir"
-                       },
-                       "location" => nil,
-                       "os" => nil,
-                       "page" => nil,
-                       "referrer" => nil,
-                       "screen" => nil,
-                       "timezone" => nil,
-                       "traits" => nil,
-                       "userAgent" => nil
-                     },
-                     "anonymousId" => nil
-                   }
-                 ]
-               } = Poison.decode!(received_body)
-
         # messageId and sentAt are not asserted
+        %{"batch" => [received_event | _received_events]} =
+          received_body
+          |> Poison.decode!()
+          |> Map.delete("sentAt")
+
+        received_event = Map.delete(received_event, "messageId")
 
-        Plug.Conn.resp(conn, 200, "")
+        assert %{"batch" => [received_event]} == expected_request_body
+        Plug.Conn.resp(conn, 200, expected_response)
       end)
 
-      event = %Segment.Analytics.Track{
-        userId: nil,
-        event: "test1",
-        properties: %{},
-        context: %Segment.Analytics.Context{}
-      }
+      options = [key: "anotherkey", endpoint: endpoint_url(bypass.port)]
+
+      task = Segment.Analytics.call(event, options)
+      assert {:ok, expected_response} == Task.await(task)
+    end
+
+    test "when fail to reach the server returns error", %{event: event} do
+      expected_response = ~s({"reason":":nxdomain"})
 
-      options = [key: "anotherkey", endpoint: endpoint_url(another_bypass.port)]
+      options = [key: "invalidendpoint", endpoint: "http://invalidend.point"]
 
       task = Segment.Analytics.call(event, options)
-      Task.await(task)
+      assert {:error, expected_response} == Task.await(task)
     end
   end
 
diff --git a/test/test_helper.exs b/test/test_helper.exs
index 071f140..655a9e9 100644
--- a/test/test_helper.exs
+++ b/test/test_helper.exs
@@ -1,2 +1,2 @@
-ExUnit.start()
+ExUnit.start(capture_log: true)
 Application.ensure_all_started(:bypass)

From f3b88608e8a47f1187aa9062d3c757e42181f926 Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Fri, 9 Oct 2020 16:41:34 +0200
Subject: [PATCH 19/33] Bump to 1.0.0

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ca06cc0..405b9b2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [1.0.0] - 2020-10-09
 ### Changed
 - Returns tuple with `:ok` or `:error` and a JSON string to enable clients
 to handle validation errors.
@@ -29,7 +31,8 @@ and `Segment.Analytics.Group`.
 ### Added
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/0.2.2...master
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...master
+[1.0.0]: https://github.com/FindHotel/analytics-elixir/compare/0.2.2...1.0.0
 [0.2.2]: https://github.com/FindHotel/analytics-elixir/compare/0.2.1...0.2.2
 [0.2.1]: https://github.com/FindHotel/analytics-elixir/compare/0.2.0...0.2.1
 [0.2.0]: https://github.com/FindHotel/analytics-elixir/compare/v0.1.1...0.2.0
diff --git a/mix.exs b/mix.exs
index 3687674..94b1e68 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "0.2.2"
+  @version "1.0.0"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From 779694c413fb00933f79c4e0fc234c280fa6c33c Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Wed, 23 Dec 2020 15:10:27 +0100
Subject: [PATCH 20/33] Add `drop_nil_fields` option (#12)

---
 CHANGELOG.md                    |   3 +
 README.md                       |   5 ++
 lib/segment/analytics.ex        |  29 ++++----
 lib/segment/encoder.ex          |  74 ++++++++++++++++++++
 mix.exs                         |   4 ++
 test/segment/analytics_test.exs |  47 ++++++++++++-
 test/segment/encoder_test.exs   |  48 +++++++++++++
 test/support/factory.ex         | 119 ++++++++++++++++++++++++++++++++
 8 files changed, 312 insertions(+), 17 deletions(-)
 create mode 100644 lib/segment/encoder.ex
 create mode 100644 test/segment/encoder_test.exs
 create mode 100644 test/support/factory.ex

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 405b9b2..d34b858 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,9 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Added
+- Add `drop_nil_fields` options to filter `null` JSON attributes from the request
+body sent to the API endpoint.
 
 ## [1.0.0] - 2020-10-09
 ### Changed
diff --git a/README.md b/README.md
index d5ba01b..4a9025a 100644
--- a/README.md
+++ b/README.md
@@ -139,6 +139,11 @@ You can also pass the __endpoint__ and __key__ as options to the
 
 With this approach the options take precedence over configurations stored in the Segment agent.
 
+### Filtering null JSON attributes from request body
+
+You can avoid sending `null` JSON attributes to the configured Segment API endpoint by passing
+`drop_nil_fields: true` to the `Segment.Analytics.call/2` function.
+
 ## Running tests
 
 There are not many tests at the moment. But you can run a live test on your segment
diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index 1f1e416..d9d03ca 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -1,9 +1,9 @@
 defmodule Segment.Analytics do
-  alias Segment.Analytics.Context
-  alias Segment.Analytics.Http
-
   require Logger
 
+  alias Segment.Analytics.{Batch, Context, Http}
+  alias Segment.Encoder
+
   def track(t = %Segment.Analytics.Track{}), do: call(t)
 
   def track(user_id, event, properties \\ %{}, context \\ %Context{}) do
@@ -75,34 +75,31 @@ defmodule Segment.Analytics do
   end
 
   def call(model, options \\ []) do
-    batch =
+    Task.async(fn ->
       model
       |> generate_message_id()
       |> fill_context()
       |> wrap_in_batch()
-      |> Poison.encode!()
-
-    Task.async(fn -> post_to_segment(batch, options) end)
+      |> Encoder.encode!(options)
+      |> post_to_segment(options)
+    end)
   end
 
+  defp generate_message_id(model), do: put_in(model.messageId, UUID.uuid4())
+
+  defp fill_context(model),
+    do: put_in(model.context.library, Context.Library.build())
+
   # TODO: replace with an actual buffering
   # to send events in batches rather than one by one
   # The idea is to reduce the traffic to the segment service
   defp wrap_in_batch(model) do
-    %Segment.Analytics.Batch{
+    %Batch{
       batch: [model],
       sentAt: :os.system_time(:milli_seconds)
     }
   end
 
-  defp fill_context(model) do
-    put_in(model.context.library, Segment.Analytics.Context.Library.build())
-  end
-
-  defp generate_message_id(model) do
-    put_in(model.messageId, UUID.uuid4())
-  end
-
   defp post_to_segment(body, options) do
     Http.post("", body, options)
     |> log_and_return(body)
diff --git a/lib/segment/encoder.ex b/lib/segment/encoder.ex
new file mode 100644
index 0000000..3f2ac78
--- /dev/null
+++ b/lib/segment/encoder.ex
@@ -0,0 +1,74 @@
+defmodule Segment.Encoder do
+  @moduledoc """
+  Responsible to transforming structs into JSON strings.
+  """
+
+  @doc """
+  Encodes a given struct into a JSON string.
+
+  ## Options
+
+      * `drop_nil_fields`: If set to `true` all the struct `nil` fields will be
+      filtered out from the JSON string. Defaults to `false`.
+
+  ## Examples
+
+      iex> library = %Segment.Analytics.Context.Library{
+      ...>   name: "foo",
+      ...>   version: "1.0.0"
+      ...> }
+      ...> #{inspect(__MODULE__)}.encode!(library, [])
+      ~s({"version":"1.0.0","transport":null,"name":"foo"})
+
+      iex> library = %Segment.Analytics.Context.Library{
+      ...>   name: "foo",
+      ...>   version: "1.0.0"
+      ...> }
+      ...> #{inspect(__MODULE__)}.encode!(library, drop_nil_fields: true)
+      ~s({"version":"1.0.0","name":"foo"})
+
+  """
+  @spec encode!(struct(), list()) :: String.t()
+  def encode!(struct, options) do
+    struct
+    |> maybe_drop_nil_fields(options)
+    |> Poison.encode!()
+  end
+
+  @spec maybe_drop_nil_fields(struct(), list()) :: String.t()
+  defp maybe_drop_nil_fields(struct, options) do
+    if Keyword.get(options, :drop_nil_fields) == true do
+      drop_nil_fields_from_struct(struct)
+    else
+      struct
+    end
+  end
+
+  @spec drop_nil_fields_from_struct(struct()) :: map()
+  defp drop_nil_fields_from_struct(struct) do
+    struct
+    |> Map.from_struct()
+    |> drop_nil_fields_from_map()
+  end
+
+  @spec drop_nil_fields_from_map(map()) :: map()
+  def drop_nil_fields_from_map(map), do: Enum.reduce(map, %{}, &drop_nil_fields/2)
+
+  @spec drop_nil_fields({any(), any()}, map()) :: map()
+  defp drop_nil_fields({key, value}, map) when is_struct(value),
+    do: Map.put(map, key, drop_nil_fields_from_struct(value))
+
+  defp drop_nil_fields({key, value}, map) when is_map(value),
+    do: Map.put(map, key, drop_nil_fields_from_map(value))
+
+  defp drop_nil_fields({key, [item | _items] = value}, map)
+       when is_list(value) and is_struct(item),
+       do: Map.put(map, key, Enum.map(value, &drop_nil_fields_from_struct/1))
+
+  defp drop_nil_fields({key, [item | _items] = value}, map)
+       when is_list(value) and is_map(item),
+       do: Map.put(map, key, Enum.map(value, &drop_nil_fields_from_map/1))
+
+  defp drop_nil_fields({_field, value}, map) when is_nil(value), do: map
+  defp drop_nil_fields({key, value}, map), do: Map.put(map, key, value)
+end
diff --git a/mix.exs b/mix.exs
index 94b1e68..a7c0ef8 100644
--- a/mix.exs
+++ b/mix.exs
@@ -10,6 +10,7 @@ defmodule AnalyticsElixir.Mixfile do
       deps: deps(),
       description: "analytics_elixir",
       elixir: "~> 1.0",
+      elixirc_paths: elixirc_paths(Mix.env()),
       name: "analytics_elixir",
       package: package(),
       version: @version
@@ -46,6 +47,9 @@ defmodule AnalyticsElixir.Mixfile do
     ]
   end
 
+  defp elixirc_paths(:test), do: ["lib", "test/support"]
+  defp elixirc_paths(_environment), do: ["lib"]
+
   defp package do
     # These are the default files included in the package
     [
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 13926d4..3fa47e9 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -52,7 +52,8 @@ defmodule Segment.Analytics.AnalyticsTest do
      bypass: bypass,
      event: event,
      expected_request_body: expected_request_body,
-     expected_response: expected_response}
+     expected_response: expected_response,
+     version: version}
   end
 
   describe "call/2" do
@@ -80,6 +81,50 @@ defmodule Segment.Analytics.AnalyticsTest do
       task = Segment.Analytics.call(event)
       assert {:ok, expected_response} == Task.await(task)
     end
+
+    test "when `drop_nil_fields` option is set to `true`, sends an event without " <>
+           "null JSON attributes, and returns the response",
+         %{
+           bypass: bypass,
+           event: event,
+           expected_response: expected_response,
+           version: version
+         } do
+      expected_request_body = %{
+        "batch" => [
+          %{
+            "context" => %{
+              "library" => %{
+                "name" => "analytics_elixir",
+                "transport" => "http",
+                "version" => version
+              }
+            },
+            "event" => "test1",
+            "properties" => %{},
+            "type" => "track"
+          }
+        ]
+      }
+
+      Bypass.expect(bypass, fn conn ->
+        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
+
+        # messageId and sentAt are not asserted
+        %{"batch" => [received_event | _received_events]} =
+          received_body
+          |> Poison.decode!()
+          |> Map.delete("sentAt")
+
+        received_event = Map.delete(received_event, "messageId")
+
+        assert %{"batch" => [received_event]} == expected_request_body
+        Plug.Conn.resp(conn, 200, expected_response)
+      end)
+
+      task = Segment.Analytics.call(event, drop_nil_fields: true)
+      assert {:ok, expected_response} == Task.await(task)
+    end
   end
 
   describe "call/2 when another endpoint and key were given" do
diff --git a/test/segment/encoder_test.exs b/test/segment/encoder_test.exs
new file mode 100644
index 0000000..9841a85
--- /dev/null
+++ b/test/segment/encoder_test.exs
@@ -0,0 +1,48 @@
+defmodule Segment.EncoderTest do
+  use ExUnit.Case, async: true
+
+  alias Segment.Encoder, as: Subject
+
+  doctest Subject
+
+  alias Segment.Support.Factory
+
+  describe "encode!/2" do
+    setup do
+      batch = Factory.build(:batch)
+
+      {:ok, batch: batch}
+    end
+
+    test "transforms a struct into a JSON string", %{batch: batch} do
+      expected_response =
+        :batch
+        |> Factory.map_for()
+        |> Poison.encode!()
+
+      assert Subject.encode!(batch, []) == expected_response
+    end
+
+    test "when `drop_nil_fields` options is `true`, " <>
+           "returns a JSON string without `null` attributes",
+         %{batch: batch} do
+      expected_response =
+        :batch_without_null
+        |> Factory.map_for()
+        |> Poison.encode!()
+
+      assert Subject.encode!(batch, drop_nil_fields: true) == expected_response
+    end
+
+    test "when `drop_nil_fields` option is set to something different than `true`," <>
+           "returns a JSON string with `null` attributes",
+         %{batch: batch} do
+      expected_response =
+        :batch
+        |> Factory.map_for()
+        |> Poison.encode!()
+
+      assert Subject.encode!(batch, drop_nil_fields: "Please don't") == expected_response
+    end
+  end
+end
diff --git a/test/support/factory.ex b/test/support/factory.ex
new file mode 100644
index 0000000..4cdc80d
--- /dev/null
+++ b/test/support/factory.ex
@@ -0,0 +1,119 @@
+defmodule Segment.Support.Factory do
+  alias Segment.Analytics.{Batch, Context, Track}
+
+  defmodule Properties, do: defstruct([:foo, :bar, :baz, :qux, :corge, :grault, :garply, :waldo])
+  defmodule NestedProperties, do: defstruct([:foo, :bar, :baz, :qux])
+
+  def build(:batch) do
+    %Batch{
+      batch: [
+        %Track{
+          context: %Context{app: %{name: "analytics_elixir", version: "1.0.0"}},
+          messageId: "e66f98cf-3a99-4895-a0a3-d5e6f72eeb23",
+          properties: %Properties{
+            bar: 2.5,
+            baz: "baz",
+            corge: [
+              %{bar: 2.5, baz: "baz", foo: 1, qux: nil},
+              %{}
+            ],
+            foo: 1,
+            garply: %{foo: 1, bar: 2.5, baz: "baz", qux: nil},
+            grault: [
+              %NestedProperties{bar: 2.5, baz: "baz", foo: 1, qux: nil},
+              %NestedProperties{}
+            ],
+            qux: nil,
+            waldo: %NestedProperties{bar: 2.5, baz: "baz", foo: 1, qux: nil}
+          }
+        }
+      ],
+      sentAt: 1_608_657_553_311
+    }
+  end
+
+  def map_for(:app), do: %{name: "analytics_elixir", version: "1.0.0"}
+
+  def map_for(:batch), do: %{batch: [map_for(:track)], sentAt: 1_608_657_553_311}
+
+  def map_for(:batch_without_null),
+    do: %{batch: [map_for(:track_without_null)], sentAt: 1_608_657_553_311}
+
+  def map_for(:context) do
+    %{
+      app: map_for(:app),
+      ip: nil,
+      library: nil,
+      location: nil,
+      os: nil,
+      page: nil,
+      referrer: nil,
+      screen: nil,
+      timezone: nil,
+      traits: nil,
+      userAgent: nil
+    }
+  end
+
+  def map_for(:context_without_null), do: %{app: map_for(:app)}
+
+  def map_for(:properties) do
+    %{
+      baz: "baz",
+      bar: 2.5,
+      corge: [
+        %{bar: 2.5, baz: "baz", foo: 1, qux: nil},
+        %{}
+      ],
+      foo: 1,
+      garply: %{bar: 2.5, baz: "baz", foo: 1, qux: nil},
+      grault: [
+        %{bar: 2.5, baz: "baz", foo: 1, qux: nil},
+        %{bar: nil, baz: nil, foo: nil, qux: nil}
+      ],
+      qux: nil,
+      waldo: %{bar: 2.5, baz: "baz", foo: 1, qux: nil}
+    }
+  end
+
+  def map_for(:properties_without_null) do
+    %{
+      baz: "baz",
+      bar: 2.5,
+      corge: [
+        %{bar: 2.5, baz: "baz", foo: 1},
+        %{}
+      ],
+      foo: 1,
+      garply: %{bar: 2.5, baz: "baz", foo: 1},
+      grault: [
+        %{bar: 2.5, baz: "baz", foo: 1},
+        %{}
+      ],
+      waldo: %{bar: 2.5, baz: "baz", foo: 1}
+    }
+  end
+
+  def map_for(:track) do
+    %{
+      anonymousId: nil,
+      context: map_for(:context),
+      event: nil,
+      messageId: "e66f98cf-3a99-4895-a0a3-d5e6f72eeb23",
+      properties: map_for(:properties),
+      timestamp: nil,
+      type: "track",
+      userId: nil,
+      version: nil
+    }
+  end
+
+  def map_for(:track_without_null) do
+    %{
+      context: map_for(:context_without_null),
+      messageId: "e66f98cf-3a99-4895-a0a3-d5e6f72eeb23",
+      properties: map_for(:properties_without_null),
+      type: "track"
+    }
+  end
+end

From 88a631a4fc7b3ea84f929a4a2b66e5a8d1e973f3 Mon Sep 17 00:00:00 2001
From: Dmitry Tymchuk <dsnipe@gmail.com>
Date: Mon, 21 Jun 2021 13:41:01 +0200
Subject: [PATCH 21/33] Use meta_logger with filters (#13)

* Add meta_logger

* Use MetaLogger and filter sensitive values

* Bump Elixir version

* Fixes elixir setup for GH actions

* Fix changelog

* Add typed_struct

* Filter sensitive data from logs

* Fix version

* Update dependency

Co-authored-by: Felipe Vieira <nvieirafelipe@gmail.com>
---
 .formatter.exs                                |   2 +-
 .github/workflows/elixir.yml                  |   3 +-
 CHANGELOG.md                                  |   7 +-
 lib/segment/analytics.ex                      |  25 ++--
 lib/segment/{ => analytics}/http.ex           |   0
 lib/segment/{ => analytics}/model.ex          |   0
 lib/segment/analytics/response_formatter.ex   | 136 ++++++++++++++++++
 mix.exs                                       |   8 +-
 mix.lock                                      |  50 +++----
 test/segment/{ => analytics}/http_test.exs    |   0
 test/segment/{ => analytics}/model_test.exs   |   0
 .../analytics/response_formatter_test.exs     |  68 +++++++++
 test/segment/analytics_test.exs               |  24 +++-
 13 files changed, 273 insertions(+), 50 deletions(-)
 rename lib/segment/{ => analytics}/http.ex (100%)
 rename lib/segment/{ => analytics}/model.ex (100%)
 create mode 100644 lib/segment/analytics/response_formatter.ex
 rename test/segment/{ => analytics}/http_test.exs (100%)
 rename test/segment/{ => analytics}/model_test.exs (100%)
 create mode 100644 test/segment/analytics/response_formatter_test.exs

diff --git a/.formatter.exs b/.formatter.exs
index d2cda26..4d24c79 100644
--- a/.formatter.exs
+++ b/.formatter.exs
@@ -1,4 +1,4 @@
-# Used by "mix format"
 [
+  import_deps: [:typed_struct],
   inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
 ]
diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 5060c0c..8db5dae 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -20,8 +20,9 @@ jobs:
     - name: Setup Elixir
       uses: actions/setup-elixir@v1
       with:
-        elixir-version: '1.10.4'
+        elixir-version: '1.12.1'
         otp-version: '23.0.4'
+        experimental-otp: true
 
     - name: Restore dependencies cache
       uses: actions/cache@v2
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d34b858..e4f96ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 ### Added
+- Use `MetaLogger.Formatter` for formatting logs and masking sensitive fields.
+
+## [1.1.0] - 2020-12-23
+### Added
 - Add `drop_nil_fields` options to filter `null` JSON attributes from the request
 body sent to the API endpoint.
 
@@ -34,7 +38,8 @@ and `Segment.Analytics.Group`.
 ### Added
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...master
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...master
+[1.1.0]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...1.1.0
 [1.0.0]: https://github.com/FindHotel/analytics-elixir/compare/0.2.2...1.0.0
 [0.2.2]: https://github.com/FindHotel/analytics-elixir/compare/0.2.1...0.2.2
 [0.2.1]: https://github.com/FindHotel/analytics-elixir/compare/0.2.0...0.2.1
diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index d9d03ca..f56ceb2 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -1,7 +1,7 @@
 defmodule Segment.Analytics do
-  require Logger
+  alias HTTPoison.{Error, Response}
 
-  alias Segment.Analytics.{Batch, Context, Http}
+  alias Segment.Analytics.{Batch, Context, Http, ResponseFormatter}
   alias Segment.Encoder
 
   def track(t = %Segment.Analytics.Track{}), do: call(t)
@@ -102,24 +102,19 @@ defmodule Segment.Analytics do
 
   defp post_to_segment(body, options) do
     Http.post("", body, options)
-    |> log_and_return(body)
+    |> ResponseFormatter.build(prefix: __MODULE__)
+    |> tap(&MetaLogger.log(:debug, &1))
+    |> handle_response()
   end
 
-  # log success responses
-  defp log_and_return({_, %{body: response_body, status_code: code}}, body)
-       when code in 200..299 do
-    Logger.debug("[#{__MODULE__}] call success: #{code} with body: #{body}")
-    {:ok, response_body}
+  defp handle_response(%{payload: %{data: %Response{body: body, status_code: status_code}}})
+       when status_code in 200..299 do
+    {:ok, body}
   end
 
-  # log failed responses
-  defp log_and_return({_, %{body: response_body}} = error, body) do
-    Logger.debug("[#{__MODULE__}] call failed: #{inspect(error)} with body: #{body}")
-    {:error, response_body}
-  end
+  defp handle_response(%{payload: %{data: %Response{body: body}}}), do: {:error, body}
 
-  defp log_and_return({_, %{reason: reason}} = error, body) do
-    Logger.debug("[#{__MODULE__}] call failed: #{inspect(error)} with body: #{body}")
+  defp handle_response(%{payload: %{data: %Error{reason: reason}}}) do
     {:error, Enum.join([~s({"reason":"), inspect(reason), ~s("})])}
   end
 end
diff --git a/lib/segment/http.ex b/lib/segment/analytics/http.ex
similarity index 100%
rename from lib/segment/http.ex
rename to lib/segment/analytics/http.ex
diff --git a/lib/segment/model.ex b/lib/segment/analytics/model.ex
similarity index 100%
rename from lib/segment/model.ex
rename to lib/segment/analytics/model.ex
diff --git a/lib/segment/analytics/response_formatter.ex b/lib/segment/analytics/response_formatter.ex
new file mode 100644
index 0000000..28450c0
--- /dev/null
+++ b/lib/segment/analytics/response_formatter.ex
@@ -0,0 +1,136 @@
+defmodule Segment.Analytics.ResponseFormatter do
+  @moduledoc """
+  Wrapper around HTTPoisong response which defines `MetaLogger.Formatter` protocol.
+  """
+
+  use TypedStruct
+
+  alias HTTPoison.{Error, Request, Response}
+  alias MetaLogger.Formatter
+
+  @replacement "[FILTERED]"
+
+  @filter_patterns [
+    {~s("email":\s?".*"), ~s("email":"#{@replacement}")},
+    {~s/"address":\s?{.*?}/, ~s/"address":{}/},
+    {~s("first_name":\s?".*"), ~s("first_name":"#{@replacement}")},
+    {~s("last_name":\s?".*"), ~s("last_name":"#{@replacement}")},
+    {~s("phone_number":\s?".*"), ~s("phone_number":"#{@replacement}")}
+  ]
+
+  @derive {Formatter, filter_patterns: @filter_patterns, formatter_fn: &__MODULE__.format/1}
+
+  @typedoc "Response formatter struct."
+  typedstruct do
+    field :payload, payload(), enforce: true
+  end
+
+  @typep payload :: %{data: Response.t() | Error.t(), prefix: any()}
+  @typep http_response :: {:ok, Response.t()} | {:error, Error.t()}
+
+  @doc """
+  Builds `#{inspect(__MODULE__)} struct.`
+
+  ## Examples
+
+      iex> response = %#{inspect(Response)}{body: "foo", status_code: 200}
+      ...> #{inspect(__MODULE__)}.build({:ok, response}, prefix: Segment.Analytics)
+      %#{inspect(__MODULE__)}{
+        payload: %{
+          data: %#{inspect(Response)}{
+            body: "foo",
+            status_code: 200
+          },
+          prefix: Segment.Analytics
+        }
+      }
+
+      iex> error = %#{inspect(Error)}{id: nil, reason: :errconect}
+      ...> #{inspect(__MODULE__)}.build({:error, error}, prefix: Segment.Analytics)
+      %#{inspect(__MODULE__)}{
+        payload: %{
+          data: %#{inspect(Error)}{id: nil, reason: :errconect},
+          prefix: Segment.Analytics
+        }
+      }
+
+  """
+  @spec build(http_response(), Keyword.t()) :: t()
+  def build(http_response, options \\ [])
+
+  def build({status, %struct{} = response}, options)
+      when status in [:ok, :error] and struct in [Error, Response],
+      do: %__MODULE__{payload: %{data: response, prefix: Keyword.get(options, :prefix)}}
+
+  @doc """
+  Builds a log message from #{inspect(__MODULE__)} struct.
+
+  ## Examples
+
+      iex> payload = %{
+      ...>   data: %#{inspect(Response)}{status_code: 200, body: "foo"},
+      ...>   prefix: Segment.Analytics
+      ...> }
+      ...> #{inspect(__MODULE__)}.format(payload)
+      ~s([Segment.Analytics] call success: 200 with body: foo)
+
+      iex> payload = %{
+      ...>   data: %#{inspect(Response)}{
+      ...>     request: %#{inspect(Request)}{body: "foo", url: "https://example.com"},
+      ...>     status_code: 300
+      ...>   },
+      ...>   prefix: Segment.Analytics
+      ...> }
+      ...> #{inspect(__MODULE__)}.format(payload)
+      ~s([Segment.Analytics] call failed: %HTTPoison.Response{body: nil, headers: [], ) <>
+        ~s(request: %HTTPoison.Request{body: "foo", headers: [], method: :get, ) <>
+        ~s(options: [], params: %{}, url: "https://example.com"}, request_url: nil, ) <>
+        ~s(status_code: 300} with request body: foo)
+
+      iex> payload = %{
+      ...>   data: %#{inspect(Error)}{reason: "foo"},
+      ...>   prefix: Segment.Analytics,
+      ...> }
+      ...> #{inspect(__MODULE__)}.format(payload)
+      ~s([Segment.Analytics] call failed: %HTTPoison.Error{id: nil, reason: "foo"}) <>
+        ~s( with reason: "foo")
+
+  """
+  @spec format(payload()) :: String.t()
+  def format(%{data: %Response{status_code: status_code, body: body}, prefix: prefix})
+      when status_code in 200..299 do
+    [
+      "[",
+      inspect(prefix),
+      "] call success: ",
+      status_code,
+      " with body: ",
+      body
+    ]
+    |> Enum.join()
+  end
+
+  def format(%{data: %Response{request: %Request{body: body}} = response, prefix: prefix}) do
+    [
+      "[",
+      inspect(prefix),
+      "] call failed: ",
+      inspect(response),
+      " with request body: ",
+      body
+    ]
+    |> Enum.join()
+  end
+
+  def format(%{data: %Error{reason: reason} = error, prefix: prefix}) do
+    [
+      "[",
+      inspect(prefix),
+      "] call failed: ",
+      inspect(error),
+      " with reason: ",
+      inspect(reason)
+    ]
+    |> Enum.join()
+  end
+end
diff --git a/mix.exs b/mix.exs
index a7c0ef8..c8507c0 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "1.0.0"
+  @version "1.1.0"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do
@@ -9,7 +9,7 @@ defmodule AnalyticsElixir.Mixfile do
       app: :segment,
       deps: deps(),
       description: "analytics_elixir",
-      elixir: "~> 1.0",
+      elixir: "~> 1.12",
       elixirc_paths: elixirc_paths(Mix.env()),
       name: "analytics_elixir",
       package: package(),
@@ -21,7 +21,7 @@ defmodule AnalyticsElixir.Mixfile do
   #
   # Type `mix help compile.app` for more information
   def application do
-    [applications: [:httpoison, :logger, :poison, :uuid]]
+    []
   end
 
   # Dependencies can be Hex packages:
@@ -38,6 +38,8 @@ defmodule AnalyticsElixir.Mixfile do
       {:httpoison, "~> 1.4"},
       {:poison, "~> 4.0"},
       {:uuid, "~> 1.1"},
+      {:meta_logger, "~> 1.4"},
+      {:typed_struct, "~> 0.2"},
 
       # Dev
       {:ex_doc, "~> 0.19", only: :dev, runtime: false},
diff --git a/mix.lock b/mix.lock
index e5a05f5..35021f0 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,26 +1,28 @@
 %{
-  "bypass": {:hex, :bypass, "1.0.0", "b78b3dcb832a71aca5259c1a704b2e14b55fd4e1327ff942598b4e7d1a7ad83d", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}], "hexpm"},
-  "certifi": {:hex, :certifi, "2.4.2", "75424ff0f3baaccfd34b1214184b6ef616d89e420b258bb0a5ea7d7bc628f7f0", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm"},
-  "cowboy": {:hex, :cowboy, "2.6.1", "f2e06f757c337b3b311f9437e6e072b678fcd71545a7b2865bdaa154d078593f", [:rebar3], [{:cowlib, "~> 2.7.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm"},
-  "cowlib": {:hex, :cowlib, "2.7.0", "3ef16e77562f9855a2605900cedb15c1462d76fb1be6a32fc3ae91973ee543d2", [:rebar3], [], "hexpm"},
-  "earmark": {:hex, :earmark, "1.3.1", "73812f447f7a42358d3ba79283cfa3075a7580a3a2ed457616d6517ac3738cb9", [:mix], [], "hexpm"},
-  "ex_doc": {:hex, :ex_doc, "0.19.2", "6f4081ccd9ed081b6dc0bd5af97a41e87f5554de469e7d76025fba535180565f", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
-  "hackney": {:hex, :hackney, "1.15.0", "287a5d2304d516f63e56c469511c42b016423bcb167e61b611f6bad47e3ca60e", [:rebar3], [{:certifi, "2.4.2", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "6.0.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "1.0.2", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.4", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},
-  "httpoison": {:hex, :httpoison, "1.5.0", "71ae9f304bdf7f00e9cd1823f275c955bdfc68282bc5eb5c85c3a9ade865d68e", [:mix], [{:hackney, "~> 1.8", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm"},
-  "idna": {:hex, :idna, "6.0.0", "689c46cbcdf3524c44d5f3dde8001f364cd7608a99556d8fbd8239a5798d4c10", [:rebar3], [{:unicode_util_compat, "0.4.1", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm"},
-  "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], []},
-  "mime": {:hex, :mime, "1.3.1", "30ce04ab3175b6ad0bdce0035cba77bba68b813d523d1aac73d9781b4d193cf8", [:mix], [], "hexpm"},
-  "mimerl": {:hex, :mimerl, "1.0.2", "993f9b0e084083405ed8252b99460c4f0563e41729ab42d9074fd5e52439be88", [:rebar3], []},
-  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm"},
-  "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm"},
-  "plug": {:hex, :plug, "1.7.1", "8516d565fb84a6a8b2ca722e74e2cd25ca0fc9d64f364ec9dbec09d33eb78ccd", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}], "hexpm"},
-  "plug_cowboy": {:hex, :plug_cowboy, "2.0.1", "d798f8ee5acc86b7d42dbe4450b8b0dadf665ce588236eb0a751a132417a980e", [:mix], [{:cowboy, "~> 2.5", [hex: :cowboy, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm"},
-  "plug_crypto": {:hex, :plug_crypto, "1.0.0", "18e49317d3fa343f24620ed22795ec29d4a5e602d52d1513ccea0b07d8ea7d4d", [:mix], [], "hexpm"},
-  "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm"},
-  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
-  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.4", "f0eafff810d2041e93f915ef59899c923f4568f4585904d010387ed74988e77b", [:make, :mix, :rebar3], [], "hexpm"},
-  "unicode_util_compat": {:hex, :unicode_util_compat, "0.4.1", "d869e4c68901dd9531385bb0c8c40444ebf624e60b6962d95952775cac5e90cd", [:rebar3], [], "hexpm"},
-  "uuid": {:hex, :uuid, "1.1.8", "e22fc04499de0de3ed1116b770c7737779f226ceefa0badb3592e64d5cfb4eb9", [:mix], [], "hexpm"},
+  "bypass": {:hex, :bypass, "1.0.0", "b78b3dcb832a71aca5259c1a704b2e14b55fd4e1327ff942598b4e7d1a7ad83d", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}], "hexpm", "5a1dc855dfcc86160458c7a70d25f65d498bd8012bd4c06a8d3baa368dda3c45"},
+  "certifi": {:hex, :certifi, "2.6.1", "dbab8e5e155a0763eea978c913ca280a6b544bfa115633fa20249c3d396d9493", [:rebar3], [], "hexpm", "524c97b4991b3849dd5c17a631223896272c6b0af446778ba4675a1dff53bb7e"},
+  "cowboy": {:hex, :cowboy, "2.6.1", "f2e06f757c337b3b311f9437e6e072b678fcd71545a7b2865bdaa154d078593f", [:rebar3], [{:cowlib, "~> 2.7.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "41c14336e40d78d3bb655e76817d9f29def522024a5bb53894c27e0ae338cda0"},
+  "cowlib": {:hex, :cowlib, "2.7.0", "3ef16e77562f9855a2605900cedb15c1462d76fb1be6a32fc3ae91973ee543d2", [:rebar3], [], "hexpm", "59f952d504b9921a6f53226fdb8b4a671bb694277c7ccf1ddeaadcdc6d43d88e"},
+  "earmark": {:hex, :earmark, "1.3.1", "73812f447f7a42358d3ba79283cfa3075a7580a3a2ed457616d6517ac3738cb9", [:mix], [], "hexpm", "000aaeff08919e95e7aea13e4af7b2b9734577b3e6a7c50ee31ee88cab6ec4fb"},
+  "ex_doc": {:hex, :ex_doc, "0.19.2", "6f4081ccd9ed081b6dc0bd5af97a41e87f5554de469e7d76025fba535180565f", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "4eae888633d2937e0a8839ae6002536d459c22976743c9dc98dd05941a06c016"},
+  "hackney": {:hex, :hackney, "1.17.4", "99da4674592504d3fb0cfef0db84c3ba02b4508bae2dff8c0108baa0d6e0977c", [:rebar3], [{:certifi, "~>2.6.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "de16ff4996556c8548d512f4dbe22dd58a587bf3332e7fd362430a7ef3986b16"},
+  "httpoison": {:hex, :httpoison, "1.8.0", "6b85dea15820b7804ef607ff78406ab449dd78bed923a49c7160e1886e987a3d", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "28089eaa98cf90c66265b6b5ad87c59a3729bea2e74e9d08f9b51eb9729b3c3a"},
+  "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
+  "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "5fbc8e549aa9afeea2847c0769e3970537ed302f93a23ac612602e805d9d1e7f"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "adf0218695e22caeda2820eaba703fa46c91820d53813a2223413da3ef4ba515"},
+  "meta_logger": {:hex, :meta_logger, "1.4.1", "cdeb7e4a1734689b25efc8f65fc7c4c799444eb0b114fb29dfe3b21a1ae1cbe5", [:mix], [{:miss, "~> 0.1", [hex: :miss, repo: "hexpm", optional: true]}, {:tesla, "~> 1.4", [hex: :tesla, repo: "hexpm", optional: true]}], "hexpm", "a07bca46e611192c6609d1e8f54ad3b0e25409b5aeebdd92abfac7d62177cd7a"},
+  "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
+  "mime": {:hex, :mime, "1.3.1", "30ce04ab3175b6ad0bdce0035cba77bba68b813d523d1aac73d9781b4d193cf8", [:mix], [], "hexpm", "6cbe761d6a0ca5a31a0931bf4c63204bceb64538e664a8ecf784a9a6f3b875f1"},
+  "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
+  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm", "5c040b8469c1ff1b10093d3186e2e10dbe483cd73d79ec017993fb3985b8a9b3"},
+  "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
+  "plug": {:hex, :plug, "1.7.1", "8516d565fb84a6a8b2ca722e74e2cd25ca0fc9d64f364ec9dbec09d33eb78ccd", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}], "hexpm", "daa5fee4209c12c3c48b05a96cf88c320b627c9575f987554dcdc1fdcdf2c15e"},
+  "plug_cowboy": {:hex, :plug_cowboy, "2.0.1", "d798f8ee5acc86b7d42dbe4450b8b0dadf665ce588236eb0a751a132417a980e", [:mix], [{:cowboy, "~> 2.5", [hex: :cowboy, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "c5ca11a0dffb73991c0d9e6e9c681b346a5151f1ec40213c617f901d4abbbc90"},
+  "plug_crypto": {:hex, :plug_crypto, "1.0.0", "18e49317d3fa343f24620ed22795ec29d4a5e602d52d1513ccea0b07d8ea7d4d", [:mix], [], "hexpm", "73c1682f0e414cfb5d9b95c8e8cd6ffcfdae699e3b05e1db744e58b7be857759"},
+  "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm", "ba8836feea4b394bb718a161fc59a288fe0109b5006d6bdf97b6badfcf6f0f25"},
+  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm", "451d8527787df716d99dc36162fca05934915db0b6141bbdac2ea8d3c7afc7d7"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
+  "typed_struct": {:hex, :typed_struct, "0.2.1", "e1993414c371f09ff25231393b6430bd89d780e2a499ae3b2d2b00852f593d97", [:mix], [], "hexpm", "8f5218c35ec38262f627b2c522542f1eae41f625f92649c0af701a6fab2e11b3"},
+  "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
+  "uuid": {:hex, :uuid, "1.1.8", "e22fc04499de0de3ed1116b770c7737779f226ceefa0badb3592e64d5cfb4eb9", [:mix], [], "hexpm", "c790593b4c3b601f5dc2378baae7efaf5b3d73c4c6456ba85759905be792f2ac"},
 }
diff --git a/test/segment/http_test.exs b/test/segment/analytics/http_test.exs
similarity index 100%
rename from test/segment/http_test.exs
rename to test/segment/analytics/http_test.exs
diff --git a/test/segment/model_test.exs b/test/segment/analytics/model_test.exs
similarity index 100%
rename from test/segment/model_test.exs
rename to test/segment/analytics/model_test.exs
diff --git a/test/segment/analytics/response_formatter_test.exs b/test/segment/analytics/response_formatter_test.exs
new file mode 100644
index 0000000..fa3543f
--- /dev/null
+++ b/test/segment/analytics/response_formatter_test.exs
@@ -0,0 +1,68 @@
+defmodule Segment.Analytics.ResponseFormatterTest do
+  use ExUnit.Case, async: true
+
+  alias Segment.Analytics.ResponseFormatter, as: Subject
+
+  doctest Subject
+
+  alias HTTPoison.{Error, Request, Response}
+
+  setup do
+    error = %Error{reason: "foo"}
+
+    failed_response = %Response{
+      status_code: 300,
+      request: %Request{body: "foo", url: "https://example.com"}
+    }
+
+    success_response = %Response{status_code: 200, body: "foo"}
+
+    {:ok,
+     error: error,
+     error_struct: %Subject{payload: %{data: error, prefix: Segment.Analytics}},
+     failed_struct: %Subject{payload: %{data: failed_response, prefix: Segment.Analytics}},
+     success_response: success_response,
+     success_struct: %Subject{payload: %{data: success_response, prefix: Segment.Analytics}}}
+  end
+
+  describe "build/2" do
+    test "returns response formatter struct with response and prefix", %{
+      success_response: response,
+      success_struct: expected_response
+    } do
+      assert Subject.build({:ok, response}, prefix: Segment.Analytics) == expected_response
+    end
+
+    test "when error is given, returns response formatter struct with error and prefix", %{
+      error: error,
+      error_struct: expected_response
+    } do
+      assert Subject.build({:error, error}, prefix: Segment.Analytics) == expected_response
+    end
+  end
+
+  describe "format/1" do
+    test "when payload have a success response, resturns formatted log message",
+         %{success_struct: %Subject{payload: payload}} do
+      assert Subject.format(payload) == ~s([Segment.Analytics] call success: 200 with body: foo)
+    end
+
+    test "when payload have a failed response, returns formatted log message",
+         %{failed_struct: %Subject{payload: payload}} do
+      assert Subject.format(payload) ==
+               ~s([Segment.Analytics] call failed: %HTTPoison.Response{) <>
+                 ~s(body: nil, headers: [], request: %HTTPoison.Request{body: ) <>
+                 ~s("foo", headers: [], method: :get, options: [], params: %{}, ) <>
+                 ~s(url: \"https://example.com\"}, request_url: nil, status_code:) <>
+                 ~s( 300} with request body: foo)
+    end
+
+    test "when payload have an error, returns formatted log message", %{
+      error_struct: %Subject{payload: payload}
+    } do
+      assert Subject.format(payload) ==
+               ~s([Segment.Analytics] call failed: %HTTPoison.Error{id: nil, ) <>
+                 ~s(reason: "foo"} with reason: "foo")
+    end
+  end
+end
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 3fa47e9..6b9f17d 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -2,6 +2,7 @@ defmodule Segment.Analytics.AnalyticsTest do
   # not used in async mode because of Bypass
   # test fail randomly
   use ExUnit.Case
+  import ExUnit.CaptureLog
 
   setup do
     bypass = Bypass.open()
@@ -46,7 +47,7 @@ defmodule Segment.Analytics.AnalyticsTest do
       ]
     }
 
-    expected_response = ~s({"another": {"json": ["response"]}})
+    expected_response = ~s({"another": {"json": ["response"]}}, "address":{"city": "Amsterdam"}})
 
     {:ok,
      bypass: bypass,
@@ -78,8 +79,15 @@ defmodule Segment.Analytics.AnalyticsTest do
         Plug.Conn.resp(conn, 200, expected_response)
       end)
 
-      task = Segment.Analytics.call(event)
-      assert {:ok, expected_response} == Task.await(task)
+      log =
+        capture_log(fn ->
+          task = Segment.Analytics.call(event)
+          assert {:ok, expected_response} == Task.await(task)
+        end)
+
+      assert log =~
+               ~s([Segment.Analytics] call success: 200 with body: ) <>
+                 ~s({"another": {"json": ["response"]}}, "address":{}})
     end
 
     test "when `drop_nil_fields` option is set to `true`, sends an event without " <>
@@ -170,8 +178,14 @@ defmodule Segment.Analytics.AnalyticsTest do
 
       options = [key: "invalidendpoint", endpoint: "http://invalidend.point"]
 
-      task = Segment.Analytics.call(event, options)
-      assert {:error, expected_response} == Task.await(task)
+      log =
+        capture_log(fn ->
+          task = Segment.Analytics.call(event, options)
+          assert {:error, expected_response} == Task.await(task)
+        end)
+
+      assert log =~
+               ~s(call failed: %HTTPoison.Error{id: nil, reason: :nxdomain} with reason: :nxdomain)
     end
   end
 

From 0aaba3d37063f812d2c5681c2755b6d19033ec63 Mon Sep 17 00:00:00 2001
From: Felipe Vieira <nvieirafelipe@gmail.com>
Date: Mon, 21 Jun 2021 13:41:21 +0200
Subject: [PATCH 22/33] Bump to 1.2.0

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e4f96ca..53f1170 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+
+## [1.2.0] - 2021-06-21
 ### Added
 - Use `MetaLogger.Formatter` for formatting logs and masking sensitive fields.
 
@@ -38,7 +40,8 @@ and `Segment.Analytics.Group`.
 ### Added
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...master
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...master
+[1.2.0]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...1.2.0
 [1.1.0]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...1.1.0
 [1.0.0]: https://github.com/FindHotel/analytics-elixir/compare/0.2.2...1.0.0
 [0.2.2]: https://github.com/FindHotel/analytics-elixir/compare/0.2.1...0.2.2
diff --git a/mix.exs b/mix.exs
index c8507c0..fe1cffe 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "1.1.0"
+  @version "1.2.0"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From 1689d40ae1066058cf8b7e6f1a535de5a949d9c8 Mon Sep 17 00:00:00 2001
From: rauan <rauann.assis@gmail.com>
Date: Fri, 25 Feb 2022 11:46:14 -0300
Subject: [PATCH 23/33] Bump Poison to v5.0 (#14)

---
 mix.exs  | 2 +-
 mix.lock | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mix.exs b/mix.exs
index fe1cffe..8aa17d5 100644
--- a/mix.exs
+++ b/mix.exs
@@ -36,7 +36,7 @@ defmodule AnalyticsElixir.Mixfile do
   defp deps do
     [
       {:httpoison, "~> 1.4"},
-      {:poison, "~> 4.0"},
+      {:poison, "~> 5.0"},
       {:uuid, "~> 1.1"},
       {:meta_logger, "~> 1.4"},
       {:typed_struct, "~> 0.2"},
diff --git a/mix.lock b/mix.lock
index 35021f0..9d23494 100644
--- a/mix.lock
+++ b/mix.lock
@@ -19,7 +19,7 @@
   "plug": {:hex, :plug, "1.7.1", "8516d565fb84a6a8b2ca722e74e2cd25ca0fc9d64f364ec9dbec09d33eb78ccd", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}], "hexpm", "daa5fee4209c12c3c48b05a96cf88c320b627c9575f987554dcdc1fdcdf2c15e"},
   "plug_cowboy": {:hex, :plug_cowboy, "2.0.1", "d798f8ee5acc86b7d42dbe4450b8b0dadf665ce588236eb0a751a132417a980e", [:mix], [{:cowboy, "~> 2.5", [hex: :cowboy, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "c5ca11a0dffb73991c0d9e6e9c681b346a5151f1ec40213c617f901d4abbbc90"},
   "plug_crypto": {:hex, :plug_crypto, "1.0.0", "18e49317d3fa343f24620ed22795ec29d4a5e602d52d1513ccea0b07d8ea7d4d", [:mix], [], "hexpm", "73c1682f0e414cfb5d9b95c8e8cd6ffcfdae699e3b05e1db744e58b7be857759"},
-  "poison": {:hex, :poison, "4.0.1", "bcb755a16fac91cad79bfe9fc3585bb07b9331e50cfe3420a24bcc2d735709ae", [:mix], [], "hexpm", "ba8836feea4b394bb718a161fc59a288fe0109b5006d6bdf97b6badfcf6f0f25"},
+  "poison": {:hex, :poison, "5.0.0", "d2b54589ab4157bbb82ec2050757779bfed724463a544b6e20d79855a9e43b24", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "11dc6117c501b80c62a7594f941d043982a1bd05a1184280c0d9166eb4d8d3fc"},
   "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm", "451d8527787df716d99dc36162fca05934915db0b6141bbdac2ea8d3c7afc7d7"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
   "typed_struct": {:hex, :typed_struct, "0.2.1", "e1993414c371f09ff25231393b6430bd89d780e2a499ae3b2d2b00852f593d97", [:mix], [], "hexpm", "8f5218c35ec38262f627b2c522542f1eae41f625f92649c0af701a6fab2e11b3"},

From d50aafa4aa4b6ce2554dbe64685fcc87d2e374fd Mon Sep 17 00:00:00 2001
From: Dmitriy Tymchuk <dsnipe@gmail.com>
Date: Fri, 25 Feb 2022 15:48:33 +0100
Subject: [PATCH 24/33] Update CHANGELOG

---
 CHANGELOG.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53f1170..74f4789 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,9 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## Changed
+- Bump Poison to v5.0
+
 ## [1.2.0] - 2021-06-21
 ### Added
 - Use `MetaLogger.Formatter` for formatting logs and masking sensitive fields.

From 07d287f1cf57eea6a888ef619bf94b633e78103d Mon Sep 17 00:00:00 2001
From: Dmitriy Tymchuk <dsnipe@gmail.com>
Date: Fri, 25 Feb 2022 15:48:48 +0100
Subject: [PATCH 25/33] Bump to 1.2.1

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74f4789..1b38fb2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [1.2.1] - 2022-02-25
+
 ## Changed
 - Bump Poison to v5.0
 
@@ -43,7 +45,8 @@ and `Segment.Analytics.Group`.
 ### Added
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...master
+[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...master
+[1.2.1]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...1.2.1
 [1.2.0]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...1.2.0
 [1.1.0]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...1.1.0
 [1.0.0]: https://github.com/FindHotel/analytics-elixir/compare/0.2.2...1.0.0
diff --git a/mix.exs b/mix.exs
index 8aa17d5..307bdd6 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "1.2.0"
+  @version "1.2.1"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From aa33f0e7a79207152d080cd465207432430d96c5 Mon Sep 17 00:00:00 2001
From: antonio lorusso <zekus.one@gmail.com>
Date: Wed, 16 Mar 2022 14:12:19 +0100
Subject: [PATCH 26/33] Decimals, DateTime and Date structs are not properly
 encoded (#15)

when using the `:drop_nil_fields` option, the `Encoder` was converting
all structs to maps including Decimal, Date and DateTime.

The new logic introduces the `Miss` library to convert the nested
structs to map and properly converting Decimal to float and Data and
DateTime to iso8601 string before continuing with the drop of nil
fields and encoding to Json.
---
 .github/workflows/elixir.yml | 62 +++++++++++++++++++-----------------
 lib/segment/encoder.ex       | 29 ++++++-----------
 mix.exs                      | 15 ++++++---
 mix.lock                     | 36 ++++++++++++++-------
 test/support/factory.ex      | 30 +++++++++++++++--
 5 files changed, 105 insertions(+), 67 deletions(-)

diff --git a/.github/workflows/elixir.yml b/.github/workflows/elixir.yml
index 8db5dae..8b64f82 100644
--- a/.github/workflows/elixir.yml
+++ b/.github/workflows/elixir.yml
@@ -3,39 +3,43 @@ name: analytics-elixir
 on:
   push:
     branches:
-      - '*'
+      - "*"
     tags-ignore:
-      - '*'
-
-env:
-    MIX_ENV: test
+      - "*"
 
 jobs:
   build:
     name: Build and test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-
-    - name: Setup Elixir
-      uses: actions/setup-elixir@v1
-      with:
-        elixir-version: '1.12.1'
-        otp-version: '23.0.4'
-        experimental-otp: true
-
-    - name: Restore dependencies cache
-      uses: actions/cache@v2
-      with:
-        path: deps
-        key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
-        restore-keys: ${{ runner.os }}-mix-
-
-    - name: Install dependencies
-      run: mix deps.get
-
-    - name: Run tests
-      run: mix test
-
-    - name: Check formatted
-      run: mix format --check-formatted
+      - uses: actions/checkout@v2
+
+      - name: Setup Elixir
+        uses: actions/setup-elixir@v1
+        with:
+          elixir-version: "1.12.1"
+          otp-version: "23.0.4"
+          experimental-otp: true
+
+      - name: Restore dependencies cache
+        uses: actions/cache@v2
+        with:
+          path: deps
+          key: ${{ runner.os }}-mix-${{ hashFiles('**/mix.lock') }}
+          restore-keys: ${{ runner.os }}-mix-
+
+      - name: Install dependencies
+        run: mix deps.get
+
+      - name: Check formatted
+        run: mix format --check-formatted
+
+      - name: Run tests
+        env:
+          MIX_ENV: test
+        run: mix test
+
+      - name: Run Dialyzer
+        env:
+          MIX_ENV: dev
+        run: mix dialyzer
diff --git a/lib/segment/encoder.ex b/lib/segment/encoder.ex
index 3f2ac78..cd6936c 100644
--- a/lib/segment/encoder.ex
+++ b/lib/segment/encoder.ex
@@ -28,43 +28,34 @@ defmodule Segment.Encoder do
       ~s({"version":"1.0.0","name":"foo"})
 
   """
-  @spec encode!(struct(), list()) :: String.t()
+  @spec encode!(struct(), keyword()) :: String.t()
   def encode!(struct, options) do
     struct
+    |> Miss.Map.from_nested_struct([
+      {Date, &Date.to_iso8601/1},
+      {DateTime, &DateTime.to_iso8601/1},
+      {Decimal, &Decimal.to_float/1}
+    ])
     |> maybe_drop_nil_fields(options)
     |> Poison.encode!()
   end
 
-  @spec maybe_drop_nil_fields(struct(), list()) :: String.t()
-  defp maybe_drop_nil_fields(struct, options) do
+  @spec maybe_drop_nil_fields(map(), keyword()) :: map()
+  defp maybe_drop_nil_fields(map, options) do
     if Keyword.get(options, :drop_nil_fields) == true do
-      drop_nil_fields_from_struct(struct)
+      drop_nil_fields_from_map(map)
     else
-      struct
+      map
     end
   end
 
-  @spec drop_nil_fields_from_struct(struct()) :: map()
-  defp drop_nil_fields_from_struct(struct) do
-    struct
-    |> Map.from_struct()
-    |> drop_nil_fields_from_map()
-  end
-
   @spec drop_nil_fields_from_map(map()) :: map()
   def drop_nil_fields_from_map(map), do: Enum.reduce(map, %{}, &drop_nil_fields/2)
 
   @spec drop_nil_fields({any(), any()}, map()) :: map()
-  defp drop_nil_fields({key, value}, map) when is_struct(value),
-    do: Map.put(map, key, drop_nil_fields_from_struct(value))
-
   defp drop_nil_fields({key, value}, map) when is_map(value),
     do: Map.put(map, key, drop_nil_fields_from_map(value))
 
-  defp drop_nil_fields({key, [item | _items] = value}, map)
-       when is_list(value) and is_struct(item),
-       do: Map.put(map, key, Enum.map(value, &drop_nil_fields_from_struct/1))
-
   defp drop_nil_fields({key, [item | _items] = value}, map)
        when is_list(value) and is_map(item),
        do: Map.put(map, key, Enum.map(value, &drop_nil_fields_from_map/1))
diff --git a/mix.exs b/mix.exs
index 307bdd6..9fb5758 100644
--- a/mix.exs
+++ b/mix.exs
@@ -35,17 +35,22 @@ defmodule AnalyticsElixir.Mixfile do
   # Type `mix help deps` for more examples and options
   defp deps do
     [
-      {:httpoison, "~> 1.4"},
+      {:decimal, "~> 2.0"},
+      {:httpoison, "~> 1.8"},
+      {:meta_logger, "~> 1.4"},
+      {:miss, "~> 0.1"},
       {:poison, "~> 5.0"},
+      {:typed_struct, "~> 0.2", runtime: false},
       {:uuid, "~> 1.1"},
-      {:meta_logger, "~> 1.4"},
-      {:typed_struct, "~> 0.2"},
 
       # Dev
-      {:ex_doc, "~> 0.19", only: :dev, runtime: false},
+      {:ex_doc, "~> 0.28", only: :dev, runtime: false},
+
+      # Static analysis
+      {:dialyxir, "~> 1.1", only: :dev, runtime: false},
 
       # Test
-      {:bypass, "~> 1.0", only: :test}
+      {:bypass, "~> 2.0", only: :test}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index 9d23494..2260438 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,27 +1,39 @@
 %{
-  "bypass": {:hex, :bypass, "1.0.0", "b78b3dcb832a71aca5259c1a704b2e14b55fd4e1327ff942598b4e7d1a7ad83d", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 1.0 or ~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}], "hexpm", "5a1dc855dfcc86160458c7a70d25f65d498bd8012bd4c06a8d3baa368dda3c45"},
+  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
+  "bypass": {:hex, :bypass, "2.1.0", "909782781bf8e20ee86a9cabde36b259d44af8b9f38756173e8f5e2e1fabb9b1", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}, {:ranch, "~> 1.3", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "d9b5df8fa5b7a6efa08384e9bbecfe4ce61c77d28a4282f79e02f1ef78d96b80"},
   "certifi": {:hex, :certifi, "2.6.1", "dbab8e5e155a0763eea978c913ca280a6b544bfa115633fa20249c3d396d9493", [:rebar3], [], "hexpm", "524c97b4991b3849dd5c17a631223896272c6b0af446778ba4675a1dff53bb7e"},
-  "cowboy": {:hex, :cowboy, "2.6.1", "f2e06f757c337b3b311f9437e6e072b678fcd71545a7b2865bdaa154d078593f", [:rebar3], [{:cowlib, "~> 2.7.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "41c14336e40d78d3bb655e76817d9f29def522024a5bb53894c27e0ae338cda0"},
-  "cowlib": {:hex, :cowlib, "2.7.0", "3ef16e77562f9855a2605900cedb15c1462d76fb1be6a32fc3ae91973ee543d2", [:rebar3], [], "hexpm", "59f952d504b9921a6f53226fdb8b4a671bb694277c7ccf1ddeaadcdc6d43d88e"},
+  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
+  "cowboy_telemetry": {:hex, :cowboy_telemetry, "0.4.0", "f239f68b588efa7707abce16a84d0d2acf3a0f50571f8bb7f56a15865aae820c", [:rebar3], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7d98bac1ee4565d31b62d59f8823dfd8356a169e7fcbb83831b8a5397404c9de"},
+  "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
+  "credo": {:hex, :credo, "1.6.4", "ddd474afb6e8c240313f3a7b0d025cc3213f0d171879429bf8535d7021d9ad78", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "c28f910b61e1ff829bffa056ef7293a8db50e87f2c57a9b5c3f57eee124536b7"},
+  "decimal": {:hex, :decimal, "2.0.0", "a78296e617b0f5dd4c6caf57c714431347912ffb1d0842e998e9792b5642d697", [:mix], [], "hexpm", "34666e9c55dea81013e77d9d87370fe6cb6291d1ef32f46a1600230b1d44f577"},
+  "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
   "earmark": {:hex, :earmark, "1.3.1", "73812f447f7a42358d3ba79283cfa3075a7580a3a2ed457616d6517ac3738cb9", [:mix], [], "hexpm", "000aaeff08919e95e7aea13e4af7b2b9734577b3e6a7c50ee31ee88cab6ec4fb"},
-  "ex_doc": {:hex, :ex_doc, "0.19.2", "6f4081ccd9ed081b6dc0bd5af97a41e87f5554de469e7d76025fba535180565f", [:mix], [{:earmark, "~> 1.2", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.10", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "4eae888633d2937e0a8839ae6002536d459c22976743c9dc98dd05941a06c016"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.22", "1de32345aab0d28bc208314937d2e69ff72ac6cacfdf89b1c0b75fc00283eb56", [:mix], [], "hexpm", "e10a2857c3b5333c503c7f95710c64f0beb2cfaa1d9de024513ad5242dc7cad5"},
+  "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
+  "ex_doc": {:hex, :ex_doc, "0.28.2", "e031c7d1a9fc40959da7bf89e2dc269ddc5de631f9bd0e326cbddf7d8085a9da", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "51ee866993ffbd0e41c084a7677c570d0fc50cb85c6b5e76f8d936d9587fa719"},
+  "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
   "hackney": {:hex, :hackney, "1.17.4", "99da4674592504d3fb0cfef0db84c3ba02b4508bae2dff8c0108baa0d6e0977c", [:rebar3], [{:certifi, "~>2.6.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "de16ff4996556c8548d512f4dbe22dd58a587bf3332e7fd362430a7ef3986b16"},
   "httpoison": {:hex, :httpoison, "1.8.0", "6b85dea15820b7804ef607ff78406ab449dd78bed923a49c7160e1886e987a3d", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "28089eaa98cf90c66265b6b5ad87c59a3729bea2e74e9d08f9b51eb9729b3c3a"},
   "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
-  "makeup": {:hex, :makeup, "0.8.0", "9cf32aea71c7fe0a4b2e9246c2c4978f9070257e5c9ce6d4a28ec450a839b55f", [:mix], [{:nimble_parsec, "~> 0.5.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "5fbc8e549aa9afeea2847c0769e3970537ed302f93a23ac612602e805d9d1e7f"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.13.0", "be7a477997dcac2e48a9d695ec730b2d22418292675c75aa2d34ba0909dcdeda", [:mix], [{:makeup, "~> 0.8", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "adf0218695e22caeda2820eaba703fa46c91820d53813a2223413da3ef4ba515"},
+  "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"},
+  "makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.16.0", "f8c570a0d33f8039513fbccaf7108c5d750f47d8defd44088371191b76492b0b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "28b2cbdc13960a46ae9a8858c4bebdec3c9a6d7b4b9e7f4ed1502f8159f338e7"},
+  "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
   "meta_logger": {:hex, :meta_logger, "1.4.1", "cdeb7e4a1734689b25efc8f65fc7c4c799444eb0b114fb29dfe3b21a1ae1cbe5", [:mix], [{:miss, "~> 0.1", [hex: :miss, repo: "hexpm", optional: true]}, {:tesla, "~> 1.4", [hex: :tesla, repo: "hexpm", optional: true]}], "hexpm", "a07bca46e611192c6609d1e8f54ad3b0e25409b5aeebdd92abfac7d62177cd7a"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
-  "mime": {:hex, :mime, "1.3.1", "30ce04ab3175b6ad0bdce0035cba77bba68b813d523d1aac73d9781b4d193cf8", [:mix], [], "hexpm", "6cbe761d6a0ca5a31a0931bf4c63204bceb64538e664a8ecf784a9a6f3b875f1"},
+  "mime": {:hex, :mime, "2.0.2", "0b9e1a4c840eafb68d820b0e2158ef5c49385d17fb36855ac6e7e087d4b1dcc5", [:mix], [], "hexpm", "e6a3f76b4c277739e36c2e21a2c640778ba4c3846189d5ab19f97f126df5f9b7"},
   "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
-  "nimble_parsec": {:hex, :nimble_parsec, "0.5.0", "90e2eca3d0266e5c53f8fbe0079694740b9c91b6747f2b7e3c5d21966bba8300", [:mix], [], "hexpm", "5c040b8469c1ff1b10093d3186e2e10dbe483cd73d79ec017993fb3985b8a9b3"},
+  "miss": {:hex, :miss, "0.1.4", "bba3dd256c40e6270577ed1b985545060c83ca7ca0d092505d48fc0ec53fba4d", [:mix], [], "hexpm", "f24a99e97b9ad3bd5eb502b032e5561c9426a53a9a6d2b4a69c9aa607ee586e1"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"},
   "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
-  "plug": {:hex, :plug, "1.7.1", "8516d565fb84a6a8b2ca722e74e2cd25ca0fc9d64f364ec9dbec09d33eb78ccd", [:mix], [{:mime, "~> 1.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}], "hexpm", "daa5fee4209c12c3c48b05a96cf88c320b627c9575f987554dcdc1fdcdf2c15e"},
-  "plug_cowboy": {:hex, :plug_cowboy, "2.0.1", "d798f8ee5acc86b7d42dbe4450b8b0dadf665ce588236eb0a751a132417a980e", [:mix], [{:cowboy, "~> 2.5", [hex: :cowboy, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "c5ca11a0dffb73991c0d9e6e9c681b346a5151f1ec40213c617f901d4abbbc90"},
-  "plug_crypto": {:hex, :plug_crypto, "1.0.0", "18e49317d3fa343f24620ed22795ec29d4a5e602d52d1513ccea0b07d8ea7d4d", [:mix], [], "hexpm", "73c1682f0e414cfb5d9b95c8e8cd6ffcfdae699e3b05e1db744e58b7be857759"},
+  "plug": {:hex, :plug, "1.13.4", "addb6e125347226e3b11489e23d22a60f7ab74786befb86c14f94fb5f23ca9a4", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "06114c1f2a334212fe3ae567dbb3b1d29fd492c1a09783d52f3d489c1a6f4cf2"},
+  "plug_cowboy": {:hex, :plug_cowboy, "2.5.2", "62894ccd601cf9597e2c23911ff12798a8a18d237e9739f58a6b04e4988899fe", [:mix], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:cowboy_telemetry, "~> 0.3", [hex: :cowboy_telemetry, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "ea6e87f774c8608d60c8d34022a7d073bd7680a0a013f049fc62bf35efea1044"},
+  "plug_crypto": {:hex, :plug_crypto, "1.2.2", "05654514ac717ff3a1843204b424477d9e60c143406aa94daf2274fdd280794d", [:mix], [], "hexpm", "87631c7ad914a5a445f0a3809f99b079113ae4ed4b867348dd9eec288cecb6db"},
   "poison": {:hex, :poison, "5.0.0", "d2b54589ab4157bbb82ec2050757779bfed724463a544b6e20d79855a9e43b24", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "11dc6117c501b80c62a7594f941d043982a1bd05a1184280c0d9166eb4d8d3fc"},
-  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm", "451d8527787df716d99dc36162fca05934915db0b6141bbdac2ea8d3c7afc7d7"},
+  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
+  "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"},
   "typed_struct": {:hex, :typed_struct, "0.2.1", "e1993414c371f09ff25231393b6430bd89d780e2a499ae3b2d2b00852f593d97", [:mix], [], "hexpm", "8f5218c35ec38262f627b2c522542f1eae41f625f92649c0af701a6fab2e11b3"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
   "uuid": {:hex, :uuid, "1.1.8", "e22fc04499de0de3ed1116b770c7737779f226ceefa0badb3592e64d5cfb4eb9", [:mix], [], "hexpm", "c790593b4c3b601f5dc2378baae7efaf5b3d73c4c6456ba85759905be792f2ac"},
diff --git a/test/support/factory.ex b/test/support/factory.ex
index 4cdc80d..514ea4c 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -1,8 +1,25 @@
 defmodule Segment.Support.Factory do
   alias Segment.Analytics.{Batch, Context, Track}
 
-  defmodule Properties, do: defstruct([:foo, :bar, :baz, :qux, :corge, :grault, :garply, :waldo])
-  defmodule NestedProperties, do: defstruct([:foo, :bar, :baz, :qux])
+  defmodule Properties do
+    defstruct ~w(
+        foo
+        bar
+        baz
+        decimal
+        date
+        datetime
+        qux
+        corge
+        grault
+        garply
+        waldo
+      )a
+  end
+
+  defmodule NestedProperties do
+    defstruct ~w(foo bar baz qux)a
+  end
 
   def build(:batch) do
     %Batch{
@@ -23,6 +40,9 @@ defmodule Segment.Support.Factory do
               %NestedProperties{bar: 2.5, baz: "baz", foo: 1, qux: nil},
               %NestedProperties{}
             ],
+            decimal: Decimal.new("123.33"),
+            date: ~D[2016-05-24],
+            datetime: ~U[2016-05-24 13:26:08.003Z],
             qux: nil,
             waldo: %NestedProperties{bar: 2.5, baz: "baz", foo: 1, qux: nil}
           }
@@ -72,6 +92,9 @@ defmodule Segment.Support.Factory do
         %{bar: nil, baz: nil, foo: nil, qux: nil}
       ],
       qux: nil,
+      decimal: 123.33,
+      date: "2016-05-24",
+      datetime: "2016-05-24T13:26:08.003Z",
       waldo: %{bar: 2.5, baz: "baz", foo: 1, qux: nil}
     }
   end
@@ -90,6 +113,9 @@ defmodule Segment.Support.Factory do
         %{bar: 2.5, baz: "baz", foo: 1},
         %{}
       ],
+      decimal: 123.33,
+      date: "2016-05-24",
+      datetime: "2016-05-24T13:26:08.003Z",
       waldo: %{bar: 2.5, baz: "baz", foo: 1}
     }
   end

From ae9ed2d876b089fdd9e142dbe81fcc1de040612f Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Wed, 16 Mar 2022 14:19:00 +0100
Subject: [PATCH 27/33] update the Changelog

---
 CHANGELOG.md | 33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b38fb2..08487a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,45 +7,64 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## Changed
+
+- Fix the encoding for Decimal, Date and DateTime structs.
+
 ## [1.2.1] - 2022-02-25
 
 ## Changed
-- Bump Poison to v5.0
+
+- Bump Poison to v5.0.
 
 ## [1.2.0] - 2021-06-21
+
 ### Added
+
 - Use `MetaLogger.Formatter` for formatting logs and masking sensitive fields.
 
 ## [1.1.0] - 2020-12-23
+
 ### Added
+
 - Add `drop_nil_fields` options to filter `null` JSON attributes from the request
-body sent to the API endpoint.
+  body sent to the API endpoint.
 
 ## [1.0.0] - 2020-10-09
+
 ### Changed
+
 - Returns tuple with `:ok` or `:error` and a JSON string to enable clients
-to handle validation errors.
+  to handle validation errors.
 
 ## [0.2.2] - 2020-10-08
+
 ### Added
+
 - Add version field to `Segment.Analytics.Track`, `Segment.Analytics.Identify`,
-`Segment.Analytics.Alias`, `Segment.Analytics.Page`, `Segment.Analytics.Screen`
-and `Segment.Analytics.Group`.
+  `Segment.Analytics.Alias`, `Segment.Analytics.Page`, `Segment.Analytics.Screen`
+  and `Segment.Analytics.Group`.
 
 ## [0.2.1] - 2020-09-28
+
 ### Removed
+
 - Removes unused fields.
 
 ## [0.2.0] - 2020-09-23
+
 ### Added
+
 - Allow endpoint and API key to be passed via options to the new public function
-`Segment.Analytics.call/2`.
+  `Segment.Analytics.call/2`.
 
 ## [v0.1.1] - 2016-10-13
+
 ### Added
+
 - First release.
 
-[Unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...master
+[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...master
 [1.2.1]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...1.2.1
 [1.2.0]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...1.2.0
 [1.1.0]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...1.1.0

From c4daf6adaafea49706e66e3d3e22b75be9c4ba67 Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Wed, 16 Mar 2022 14:19:44 +0100
Subject: [PATCH 28/33] Bump to 1.3.0

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 08487a1..1cb066e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [1.3.0] - 2022-03-16
+
 ## Changed
 
 - Fix the encoding for Decimal, Date and DateTime structs.
@@ -64,7 +66,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 - First release.
 
-[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...master
+[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.3.0...master
+[1.3.0]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...1.3.0
 [1.2.1]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...1.2.1
 [1.2.0]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...1.2.0
 [1.1.0]: https://github.com/FindHotel/analytics-elixir/compare/1.0.0...1.1.0
diff --git a/mix.exs b/mix.exs
index 9fb5758..5e65e31 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "1.2.1"
+  @version "1.3.0"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From 8800a08f14ae8d515c352e7ca5bd427d2947ddaa Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Thu, 17 Mar 2022 15:36:29 +0100
Subject: [PATCH 29/33] Update the `miss` library (#16)

---
 CHANGELOG.md | 4 ++++
 mix.lock     | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1cb066e..f8ca326 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## Changed
+
+- Update the `miss` library.
+
 ## [1.3.0] - 2022-03-16
 
 ## Changed
diff --git a/mix.lock b/mix.lock
index 2260438..2ac5b14 100644
--- a/mix.lock
+++ b/mix.lock
@@ -24,7 +24,7 @@
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
   "mime": {:hex, :mime, "2.0.2", "0b9e1a4c840eafb68d820b0e2158ef5c49385d17fb36855ac6e7e087d4b1dcc5", [:mix], [], "hexpm", "e6a3f76b4c277739e36c2e21a2c640778ba4c3846189d5ab19f97f126df5f9b7"},
   "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
-  "miss": {:hex, :miss, "0.1.4", "bba3dd256c40e6270577ed1b985545060c83ca7ca0d092505d48fc0ec53fba4d", [:mix], [], "hexpm", "f24a99e97b9ad3bd5eb502b032e5561c9426a53a9a6d2b4a69c9aa607ee586e1"},
+  "miss": {:hex, :miss, "0.1.5", "dcf0771834ecd82580ff02d7299563c327afa8330485d281afe0b9512adcd500", [:mix], [], "hexpm", "494aba3ba3ed8a290714b4b9ff8c8d750b76dccb63c1aca21830a74989f8a047"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"},
   "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
   "plug": {:hex, :plug, "1.13.4", "addb6e125347226e3b11489e23d22a60f7ab74786befb86c14f94fb5f23ca9a4", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "06114c1f2a334212fe3ae567dbb3b1d29fd492c1a09783d52f3d489c1a6f4cf2"},

From 4b6697f7764056eaedf518ee349647acf59cd903 Mon Sep 17 00:00:00 2001
From: Antonio Lorusso <antonio.lorusso@gmail.com>
Date: Thu, 17 Mar 2022 16:06:34 +0100
Subject: [PATCH 30/33] Bump to 1.3.1

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index f8ca326..5e0f2ac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [1.3.1] - 2022-03-17
+
 ## Changed
 
 - Update the `miss` library.
@@ -70,7 +72,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 - First release.
 
-[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.3.0...master
+[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.3.1...master
+[1.3.1]: https://github.com/FindHotel/analytics-elixir/compare/1.3.0...1.3.1
 [1.3.0]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...1.3.0
 [1.2.1]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...1.2.1
 [1.2.0]: https://github.com/FindHotel/analytics-elixir/compare/1.1.0...1.2.0
diff --git a/mix.exs b/mix.exs
index 5e65e31..b0a4d27 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "1.3.0"
+  @version "1.3.1"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do

From c47f410bf434d889491b98f70959614ca57ba108 Mon Sep 17 00:00:00 2001
From: Jonathan Moraes <altjohndev@gmail.com>
Date: Mon, 5 Feb 2024 12:35:10 +0100
Subject: [PATCH 31/33] Bump meta_logger (#17)

---
 mix.lock | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mix.lock b/mix.lock
index 2ac5b14..1078634 100644
--- a/mix.lock
+++ b/mix.lock
@@ -20,7 +20,7 @@
   "makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.0", "f8c570a0d33f8039513fbccaf7108c5d750f47d8defd44088371191b76492b0b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "28b2cbdc13960a46ae9a8858c4bebdec3c9a6d7b4b9e7f4ed1502f8159f338e7"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
-  "meta_logger": {:hex, :meta_logger, "1.4.1", "cdeb7e4a1734689b25efc8f65fc7c4c799444eb0b114fb29dfe3b21a1ae1cbe5", [:mix], [{:miss, "~> 0.1", [hex: :miss, repo: "hexpm", optional: true]}, {:tesla, "~> 1.4", [hex: :tesla, repo: "hexpm", optional: true]}], "hexpm", "a07bca46e611192c6609d1e8f54ad3b0e25409b5aeebdd92abfac7d62177cd7a"},
+  "meta_logger": {:hex, :meta_logger, "1.7.0", "60e50736bfee20f398861f3b8e4646247896bd9e435272454b92e1dc6b0139e5", [:mix], [{:miss, "~> 0.1", [hex: :miss, repo: "hexpm", optional: true]}, {:tesla, "~> 1.4", [hex: :tesla, repo: "hexpm", optional: true]}], "hexpm", "29f5d40eaadde01c51369130321a0d603e4de95a634d5707485756cc7f297cc8"},
   "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
   "mime": {:hex, :mime, "2.0.2", "0b9e1a4c840eafb68d820b0e2158ef5c49385d17fb36855ac6e7e087d4b1dcc5", [:mix], [], "hexpm", "e6a3f76b4c277739e36c2e21a2c640778ba4c3846189d5ab19f97f126df5f9b7"},
   "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},

From 98925d216d1ab9cb018b1331bc2f043e9994fdab Mon Sep 17 00:00:00 2001
From: Jonathan Moraes <altjohndev@gmail.com>
Date: Mon, 29 Apr 2024 11:01:59 +0200
Subject: [PATCH 32/33] Add retry mechanism (#18)

---
 .tool-versions                                |   2 +
 CHANGELOG.md                                  |  29 +-
 README.md                                     | 128 +++----
 config/config.exs                             |  25 +-
 lib/segment.ex                                | 146 ++++----
 lib/segment/analytics.ex                      |  84 +++--
 lib/segment/analytics/http.ex                 |  80 ++++-
 lib/segment/analytics/response_formatter.ex   | 136 -------
 lib/segment/config.ex                         |  80 +++++
 lib/segment/encoder.ex                        |  41 +--
 mix.exs                                       |   7 +-
 mix.lock                                      |  24 +-
 test/segment/analytics/http_test.exs          |  70 ----
 test/segment/analytics/model_test.exs         |   4 +-
 .../analytics/response_formatter_test.exs     |  68 ----
 test/segment/analytics_test.exs               | 333 ++++++++++--------
 test/segment/config_test.exs                  |  57 +++
 test/segment/encoder_test.exs                 |  33 +-
 test/segment_test.exs                         |  44 ---
 test/support/factory.ex                       |   7 +
 20 files changed, 647 insertions(+), 751 deletions(-)
 create mode 100644 .tool-versions
 delete mode 100644 lib/segment/analytics/response_formatter.ex
 create mode 100644 lib/segment/config.ex
 delete mode 100644 test/segment/analytics/http_test.exs
 delete mode 100644 test/segment/analytics/response_formatter_test.exs
 create mode 100644 test/segment/config_test.exs
 delete mode 100644 test/segment_test.exs

diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..000a611
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1,2 @@
+elixir 1.16.0-otp-26
+erlang 26.2.1
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e0f2ac..9888930 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,21 +7,44 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+### Changed
+
+- Replaced `HTTPoison` library with `Tesla`.
+
+### Removed
+
+- Removed `Agent` strategy in favor of configuration. See `t:Segment.options/0` for configuration
+  instructions.
+
+### Added
+
+- Retry mechanism for Segment API requests.
+- Request and response logs through `MetaLogger`.
+- Additional options available (see `t:Segment.options/0` for documentation):
+  - `:disable_meta_logger`
+  - `:filter_body`
+  - `:http_adapter`
+  - `:max_retries`
+  - `:request_timeout`
+  - `:retry_base_delay`
+  - `:retry_jitter_factor`
+  - `:retry_max_delay`
+
 ## [1.3.1] - 2022-03-17
 
-## Changed
+### Changed
 
 - Update the `miss` library.
 
 ## [1.3.0] - 2022-03-16
 
-## Changed
+### Changed
 
 - Fix the encoding for Decimal, Date and DateTime structs.
 
 ## [1.2.1] - 2022-02-25
 
-## Changed
+### Changed
 
 - Bump Poison to v5.0.
 
diff --git a/README.md b/README.md
index 4a9025a..6f84f51 100644
--- a/README.md
+++ b/README.md
@@ -1,63 +1,47 @@
-analytics-elixir ![analytics-elixir](https://github.com/FindHotel/analytics-elixir/workflows/analytics-elixir/badge.svg?branch=master)
-================
+# analytics-elixir ![analytics-elixir](https://github.com/FindHotel/analytics-elixir/workflows/analytics-elixir/badge.svg?branch=master)
 
 analytics-elixir is a non-supported third-party client for [Segment](https://segment.com)
 
-## Install
+## Installation
 
-Add the following to deps section of your mix.exs: `{:segment, github: "FindHotel/analytics-elixir"}`
+Add the following to deps section of your mix.exs:
 
-and then `mix deps.get`
+```elixir
+{:segment, github: "FindHotel/analytics-elixir"}
+```
 
-## Usage
+And then run:
 
-Start the Segment agent with your write_key from Segment, and the endpoint.
-The __endpoint__ is optional and if omitted, it defaults to `https://api.segment.io/v1/`.
-```
-Segment.start_link("YOUR_SEGMENT_KEY", "https://example.com/v1")
+```sh
+mix deps.get
 ```
-There are then two ways to call the different methods on the API.
-A basic way through `Segment.Analytics` or by passing a full Struct
-with all the data for the API (allowing Context and Integrations to be set)
 
-## Usage in Phoenix
-
-This is how I add to a Phoenix project (may not be your preferred way)
+## Usage
 
-1. Add the following to deps section of your mix.exs: `{:segment, github: "FindHotel/analytics-elixir"}`
-   and then `mix deps.get`
+For general usage, first define the `:key` configuration:
 
-2. Add segment to applications list in the Phoenix project mix.exs
-ie.
-```
-def application do
-  [mod: {FormAndThread, []},
-   applications: [:phoenix, :phoenix_html, :cowboy, :logger,
-                  :phoenix_ecto, :postgrex, :segment]]
-end
+```elixir
+config :segment, key: "your_segment_key"
 ```
 
-3. Add a config variable for your write_key (may want to make this environment dependent)
-ie.
-```
-config :segment,
-  key: "your_segment_key",
-  endpoint: "https://api.segment.io/v1/"
-```
-The __endpoint__ is optional (as specified in the Usage section above).
+> For detailed information about configuration, see `t:Segment.options/0`.
 
-4. Start the segment agent as a child of the application in the application file under
-the lib directory. In the children list add:
-```
-{Segment, [Application.get_env(:segment, :key), Application.get_env(:segment, :endpoint)]}
-```
+Then call `Segment.Analytics` functions to send analytics.
+
+There are then two ways to call the functions:
+
+- By using a collection of parameters
+- By using the related struct as a parameter
 
 ### Track
-```
+
+```elixir
 Segment.Analytics.track(user_id, event, %{property1: "", property2: ""})
 ```
+
 or the full way using a struct with all the possible options for the track call
-```
+
+```elixir
 %Segment.Analytics.Track{ userId: "sdsds",
                           event: "eventname",
                           properties: %{property1: "", property2: ""}
@@ -66,11 +50,14 @@ or the full way using a struct with all the possible options for the track call
 ```
 
 ### Identify
-```
+
+```elixir
 Segment.Analytics.identify(user_id, %{trait1: "", trait2: ""})
 ```
+
 or the full way using a struct with all the possible options for the identify call
-```
+
+```elixir
 %Segment.Analytics.Identify{ userId: "sdsds",
                              traits: %{trait1: "", trait2: ""}
                            }
@@ -78,11 +65,14 @@ or the full way using a struct with all the possible options for the identify ca
 ```
 
 ### Screen
-```
+
+```elixir
 Segment.Analytics.screen(user_id, name)
 ```
+
 or the full way using a struct with all the possible options for the screen call
-```
+
+```elixir
 %Segment.Analytics.Screen{ userId: "sdsds",
                            name: "dssd"
                          }
@@ -90,11 +80,14 @@ or the full way using a struct with all the possible options for the screen call
 ```
 
 ### Alias
-```
+
+```elixir
 Segment.Analytics.alias(user_id, previous_id)
 ```
+
 or the full way using a struct with all the possible options for the alias call
-```
+
+```elixir
 %Segment.Analytics.Alias{ userId: "sdsds",
                           previousId: "dssd"
                          }
@@ -102,11 +95,14 @@ or the full way using a struct with all the possible options for the alias call
 ```
 
 ### Group
-```
+
+```elixir
 Segment.Analytics.group(user_id, group_id)
 ```
+
 or the full way using a struct with all the possible options for the group call
-```
+
+```elixir
 %Segment.Analytics.Group{ userId: "sdsds",
                           groupId: "dssd"
                          }
@@ -114,42 +110,26 @@ or the full way using a struct with all the possible options for the group call
 ```
 
 ### Page
-```
+
+```elixir
 Segment.Analytics.page(user_id, name)
 ```
+
 or the full way using a struct with all the possible options for the page call
-```
+
+```elixir
 %Segment.Analytics.Page{ userId: "sdsds",
                          name:   "dssd"
                        }
   |> Segment.Analytics.page
 ```
 
-### Config as options
+## Testing
 
-You can also pass the __endpoint__ and __key__ as options to the
-`Segment.Analytics.call/2` along with the struct.
-```
-%Segment.Analytics.Track{ userId: "sdsds",
-                          event: "eventname",
-                          properties: %{property1: "", property2: ""}
-                        }
-  |> Segment.Analytics.call([key: "YOUR_SEGMENT_KEY", endpoint: "https://example.com/v1"])
-```
+Clone the repository and run:
 
-With this approach the options take precedence over configurations stored in the Segment agent.
-
-### Filtering null JSON attributes from request body
-
-You can avoid sending `null` JSON attributes to the configured Segment API endpoint by passing
-`drop_nil_fields: true` to the `Segment.Analytics.call/2` function.
-
-## Running tests
-
-There are not many tests at the moment. But you can run a live test on your segment
-account by running.
-```
-SEGMENT_KEY=yourkey mix test
+```sh
+mix test
 ```
 
 ## Release
diff --git a/config/config.exs b/config/config.exs
index 6dfa82f..e714c9e 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -1,24 +1,3 @@
-# This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
-use Mix.Config
+import Config
 
-# This configuration is loaded before any dependency and is restricted
-# to this project. If another project depends on this project, this
-# file won't be loaded nor affect the parent project. For this reason,
-# if you want to provide default values for your application for third-
-# party users, it should be done in your mix.exs file.
-
-# Sample configuration:
-#
-#     config :logger, :console,
-#       level: :info,
-#       format: "$date $time [$level] $metadata$message\n",
-#       metadata: [:user_id]
-
-# It is also possible to import configuration files, relative to this
-# directory. For example, you can emulate configuration per environment
-# by uncommenting the line below and defining dev.exs, test.exs and such.
-# Configuration from the imported file will override the ones defined
-# here (which is why it is important to import them last).
-#
-#     import_config "#{Mix.env}.exs"
+config :segment, http_adapter: Tesla.Mock, key: "my-amazing-key"
diff --git a/lib/segment.ex b/lib/segment.ex
index c5ef88c..94a711d 100644
--- a/lib/segment.ex
+++ b/lib/segment.ex
@@ -1,77 +1,85 @@
 defmodule Segment do
-  use Agent
+  @moduledoc """
+  Client for Segment API.
 
-  @type status :: :ok | :error
-
-  @default_endpoint "https://api.segment.io/v1/"
-
-  @spec start_link(String.t(), String.t()) :: {Segment.status(), pid}
-  def start_link(key, endpoint \\ @default_endpoint) do
-    Agent.start_link(fn -> %{endpoint: endpoint, key: key} end, name: __MODULE__)
-  end
-
-  @doc """
-  The child specifications
-
-  ## Examples
-
-    iex> Segment.child_spec([key: "something"])
-    %{
-      id: Segment,
-      start: {Segment, :start_link, ["something", nil]}
-    }
-
-    iex> Segment.child_spec([])
-    ** (KeyError) key :key not found in: []
-
-    iex> Segment.child_spec([key: "something", endpoint: "http://example.com"])
-    %{
-      id: Segment,
-      start: {Segment, :start_link, ["something", "http://example.com"]}
-    }
-
-  """
-  def child_spec(arg) do
-    opts = [
-      Keyword.fetch!(arg, :key),
-      Keyword.get(arg, :endpoint)
-    ]
-
-    %{
-      id: Segment,
-      start: {Segment, :start_link, opts}
-    }
-  end
-
-  @doc """
-  Returns the segment key
-
-  ## Examples
-
-    iex> Segment.start_link("key")
-    ...> Segment.key()
-    "key"
+  For usage, see `Segment.Analytics`.
 
+  For options and configuration, see `t:Segment.options/0`.
   """
-  def key() do
-    Agent.get(__MODULE__, &Map.get(&1, :key))
-  end
-
-  @doc """
-  Returns the segment endpoint
-
-  ## Examples
-
-    iex> Segment.start_link("key")
-    ...> Segment.endpoint()
-    "https://api.segment.io/v1/"
 
-    iex> Segment.start_link("key", "https://example.com")
-    ...> Segment.endpoint()
-    "https://example.com"
+  @default_config %Segment.Config{}
+
+  @typedoc "The struct that will be used as payload."
+  @type model :: struct()
+
+  @typedoc "Request and response body patterns that will be filtered before logging."
+  @type filter_body :: [{Regex.t() | String.pattern(), String.t()}]
+
+  @typedoc "HTTP headers that will be filtered before logging."
+  @type filter_headers :: [String.t()]
+
+  @typedoc """
+  Options to customize the operation.
+
+  It is possible to define options through application environment:
+
+      # in config.exs
+      import Config
+
+      config :segment,
+        disable_meta_logger: #{inspect(@default_config.disable_meta_logger)},
+        drop_nil_fields: #{inspect(@default_config.drop_nil_fields)},
+        endpoint: #{inspect(@default_config.endpoint)},
+        filter_body: #{inspect(@default_config.filter_body)},
+        http_adapter: #{inspect(@default_config.http_adapter)},
+        key: "a-valid-api-key",
+        max_retries: #{inspect(@default_config.max_retries)},
+        prefix: #{inspect(@default_config.prefix)},
+        request_timeout: #{inspect(@default_config.request_timeout)},
+        retry_base_delay: #{inspect(@default_config.retry_base_delay)},
+        retry_jitter_factor: #{inspect(@default_config.retry_jitter_factor)},
+        retry_max_delay: #{inspect(@default_config.retry_max_delay)}
+
+  Available options:
+
+  - `:disable_meta_logger` - If `true`, the request and response will not be logged.
+    Defaults to `#{inspect(@default_config.disable_meta_logger)}`.
+  - `:drop_nil_fields` - If `true`, removes any field with `nil` value from the request payload.
+    Defaults to `#{inspect(@default_config.drop_nil_fields)}`.
+  - `:endpoint` - The base URL for the Segment API.
+    Defaults to `#{inspect(@default_config.endpoint)}`.
+  - `:filter_body` - Request and response body patterns that will be filtered before logging.
+    Defaults to `#{inspect(@default_config.filter_body)}`.
+  - `:http_adapter` - `:Tesla` adapter for the client.
+    Defaults to `#{inspect(@default_config.http_adapter)}`.
+  - `:key` - The `x-api-key` HTTP header value.
+    Must be set.
+  - `:max_retries` - Maximum number of retries.
+    Defaults to `#{inspect(@default_config.max_retries)}`.
+  - `:prefix` - String or atom (including modules) to be used as the log prefix.
+    Defaults to `#{inspect(@default_config.prefix)}`.
+  - `:request_timeout` - Maximum amount of milliseconds to wait for a response.
+    Defaults to `#{inspect(@default_config.request_timeout)}`.
+  - `:retry_base_delay` - The base amount of milliseconds to wait before attempting a new request.
+    Defaults to `#{inspect(@default_config.retry_base_delay)}`.
+  - `:retry_jitter_factor` - Additive noise multiplier to update the retry delay.
+    Defaults to `#{inspect(@default_config.retry_jitter_factor)}`.
+  - `:retry_max_delay` - Maximum delay in milliseconds to wait before attempting a new request.
+    Defaults to `#{inspect(@default_config.retry_max_delay)}`.
 
   """
-  def endpoint() do
-    Agent.get(__MODULE__, &Map.get(&1, :endpoint))
-  end
+  @type options :: [
+          disable_meta_logger: boolean(),
+          drop_nil_fields: boolean(),
+          endpoint: String.t(),
+          filter_body: Segment.filter_body(),
+          http_adapter: module(),
+          key: String.t(),
+          max_retries: non_neg_integer(),
+          prefix: atom() | String.t(),
+          request_timeout: non_neg_integer(),
+          retry_base_delay: non_neg_integer(),
+          retry_jitter_factor: non_neg_integer(),
+          retry_max_delay: non_neg_integer()
+        ]
 end
diff --git a/lib/segment/analytics.ex b/lib/segment/analytics.ex
index f56ceb2..2833127 100644
--- a/lib/segment/analytics.ex
+++ b/lib/segment/analytics.ex
@@ -1,7 +1,14 @@
 defmodule Segment.Analytics do
-  alias HTTPoison.{Error, Response}
+  @moduledoc """
+  Performs requests to Segment API.
+  """
 
-  alias Segment.Analytics.{Batch, Context, Http, ResponseFormatter}
+  require Logger
+
+  alias Segment.Analytics.Batch
+  alias Segment.Analytics.Context
+  alias Segment.Analytics.HTTP
+  alias Segment.Config
   alias Segment.Encoder
 
   def track(t = %Segment.Analytics.Track{}), do: call(t)
@@ -13,7 +20,7 @@ defmodule Segment.Analytics do
       properties: properties,
       context: context
     }
-    |> call
+    |> call()
   end
 
   def identify(i = %Segment.Analytics.Identify{}), do: call(i)
@@ -24,7 +31,7 @@ defmodule Segment.Analytics do
       traits: traits,
       context: context
     }
-    |> call
+    |> call()
   end
 
   def screen(s = %Segment.Analytics.Screen{}), do: call(s)
@@ -36,7 +43,7 @@ defmodule Segment.Analytics do
       properties: properties,
       context: context
     }
-    |> call
+    |> call()
   end
 
   def alias(a = %Segment.Analytics.Alias{}), do: call(a)
@@ -47,7 +54,7 @@ defmodule Segment.Analytics do
       previousId: previous_id,
       context: context
     }
-    |> call
+    |> call()
   end
 
   def group(g = %Segment.Analytics.Group{}), do: call(g)
@@ -59,7 +66,7 @@ defmodule Segment.Analytics do
       traits: traits,
       context: context
     }
-    |> call
+    |> call()
   end
 
   def page(p = %Segment.Analytics.Page{}), do: call(p)
@@ -71,17 +78,46 @@ defmodule Segment.Analytics do
       properties: properties,
       context: context
     }
-    |> call
+    |> call()
   end
 
+  @doc """
+  Returns a `Task` that must be awaited on that merges the options received with the application
+  environment and sends the payload to the Segment API.
+
+  The task returns `{:ok, binary}` with the raw response body if the request succeeded with
+  valid result.
+
+  On failure, the task returns `{:error, binary}` with either the raw response body if the
+  request succeded or the inspected error otherwise.
+
+  For options documentation, see `t:Segment.options/0`.
+
+  ## Examples
+
+      iex> model = %Segment.Analytics.Page{...}
+      ...> #{inspect(__MODULE__)}.call(model)
+      %Task{...}
+
+      ...> #{inspect(__MODULE__)}.call(model, max_retries: 2)
+      %Task{...}
+
+  """
+  @spec call(Segment.model(), Segment.options()) :: Task.t()
   def call(model, options \\ []) do
+    caller_metadata = MetaLogger.metadata()
+
     Task.async(fn ->
+      Logger.metadata(caller_metadata)
+
+      %Config{} = config = Config.get(options)
+
       model
       |> generate_message_id()
       |> fill_context()
       |> wrap_in_batch()
-      |> Encoder.encode!(options)
-      |> post_to_segment(options)
+      |> Encoder.encode!(config)
+      |> post_to_segment(config)
     end)
   end
 
@@ -100,21 +136,23 @@ defmodule Segment.Analytics do
     }
   end
 
-  defp post_to_segment(body, options) do
-    Http.post("", body, options)
-    |> ResponseFormatter.build(prefix: __MODULE__)
-    |> tap(&MetaLogger.log(:debug, &1))
-    |> handle_response()
-  end
+  @spec post_to_segment(String.t(), Config.t()) :: HTTP.request_result()
+  defp post_to_segment(body, %Config{} = config) do
+    case HTTP.post(body, config) do
+      {:ok, _body} = result ->
+        result
 
-  defp handle_response(%{payload: %{data: %Response{body: body, status_code: status_code}}})
-       when status_code in 200..299 do
-    {:ok, body}
+      {:error, _reason} = result ->
+        log_post_result(:error, "Segment API request failed", config)
+        result
+    end
   end
 
-  defp handle_response(%{payload: %{data: %Response{body: body}}}), do: {:error, body}
+  @spec log_post_result(Logger.level(), String.t(), Config.t()) :: :ok
+  defp log_post_result(log_level, message, %Config{} = config),
+    do: Logger.log(log_level, "[#{log_tag(config.prefix)}] #{message}")
 
-  defp handle_response(%{payload: %{data: %Error{reason: reason}}}) do
-    {:error, Enum.join([~s({"reason":"), inspect(reason), ~s("})])}
-  end
+  @spec log_tag(atom() | String.t()) :: String.t()
+  defp log_tag(string) when is_binary(string), do: string
+  defp log_tag(value), do: inspect(value)
 end
diff --git a/lib/segment/analytics/http.ex b/lib/segment/analytics/http.ex
index efddceb..c3bb364 100644
--- a/lib/segment/analytics/http.ex
+++ b/lib/segment/analytics/http.ex
@@ -1,21 +1,75 @@
-defmodule Segment.Analytics.Http do
-  def post(path, body, options) do
-    path
-    |> process_url(options)
-    |> HTTPoison.post(body, process_request_headers(options))
+defmodule Segment.Analytics.HTTP do
+  @moduledoc false
+
+  alias Segment.Config
+  alias Tesla.Middleware
+
+  @type request_result :: {:ok, String.t()} | {:error, String.t()}
+
+  defguardp response_ok?(value) when is_struct(value, Tesla.Env) and value.status in 200..299
+
+  @spec post(String.t(), Config.t()) :: request_result()
+  @spec post(String.t(), String.t(), Config.t()) :: request_result()
+  def post(path \\ "", raw_body, %Config{} = config) do
+    config
+    |> client()
+    |> Tesla.post(path, raw_body)
+    |> handle_result()
   end
 
-  def process_url(path, options),
-    do: get_config(options, :endpoint, &Segment.endpoint/0) <> path
+  @spec client(Config.t()) :: Tesla.Client.t()
+  defp client(%Config{} = config) do
+    # The order matters, see Tesla.Middleware
+    [
+      {Middleware.BaseUrl, config.endpoint},
+      {Middleware.Headers, headers(config)},
+      {Middleware.Retry, retry(config)},
+      if(config.disable_meta_logger != true, do: {Middleware.MetaLogger, meta_logger(config)})
+    ]
+    |> Enum.reject(&is_nil/1)
+    |> Tesla.client(adapter(config))
+  end
 
-  def process_request_headers(options) do
+  @spec headers(Config.t()) :: Tesla.Env.headers()
+  defp headers(%Config{} = config) do
     [
-      {"Content-Type", "application/json"},
-      {"Accept", "application/json"},
-      {"x-api-key", get_config(options, :key, &Segment.key/0)}
+      {"accept", "application/json"},
+      {"content-Type", "application/json"},
+      {"x-api-key", config.key}
     ]
   end
 
-  def get_config(options, key, default_func),
-    do: Keyword.get(options, key) || default_func.()
+  @spec retry(Config.t()) :: Keyword.t()
+  defp retry(%Config{} = config) do
+    [
+      delay: config.retry_base_delay,
+      jitter_factor: config.retry_jitter_factor,
+      max_delay: config.retry_max_delay,
+      max_retries: config.max_retries,
+      should_retry: &should_retry?/1
+    ]
+  end
+
+  @spec should_retry?(Tesla.Env.result()) :: boolean()
+  defp should_retry?({:ok, %Tesla.Env{} = env}) when response_ok?(env), do: false
+  defp should_retry?(_result), do: true
+
+  @spec meta_logger(Config.t()) :: Keyword.t()
+  defp meta_logger(%Config{} = config) do
+    [
+      filter_body: config.filter_body,
+      filter_headers: ~w(x-api-key),
+      log_level: :info,
+      log_tag: __MODULE__
+    ]
+  end
+
+  @spec adapter(Config.t()) :: {module(), recv_timeout: non_neg_integer()}
+  defp adapter(%Config{} = config),
+    do: {config.http_adapter, recv_timeout: config.request_timeout}
+
+  @spec handle_result(Tesla.Env.result()) :: request_result()
+  defp handle_result({:ok, %Tesla.Env{} = env}) when response_ok?(env), do: {:ok, env.body}
+  defp handle_result({:ok, %Tesla.Env{} = env}), do: {:error, env.body}
+  defp handle_result({:error, reason}), do: {:error, inspect(reason)}
 end
diff --git a/lib/segment/analytics/response_formatter.ex b/lib/segment/analytics/response_formatter.ex
deleted file mode 100644
index 28450c0..0000000
--- a/lib/segment/analytics/response_formatter.ex
+++ /dev/null
@@ -1,136 +0,0 @@
-defmodule Segment.Analytics.ResponseFormatter do
-  @moduledoc """
-  Wrapper around HTTPoisong response which defines `MetaLogger.Formatter` protocol.
-  """
-
-  use TypedStruct
-
-  alias HTTPoison.{Error, Request, Response}
-  alias MetaLogger.Formatter
-
-  @replacement "[FILTERED]"
-
-  @filter_patterns [
-    {~s("email":\s?".*"), ~s("email":"#{@replacement}")},
-    {~s/"address":\s?{.*?}/, ~s/"address":{}/},
-    {~s("first_name":\s?".*"), ~s("first_name":"#{@replacement}")},
-    {~s("last_name":\s?".*"), ~s("last_name":"#{@replacement}")},
-    {~s("phone_number":\s?".*"), ~s("phone_number":"#{@replacement}")}
-  ]
-
-  @derive {Formatter, filter_patterns: @filter_patterns, formatter_fn: &__MODULE__.format/1}
-
-  @typedoc "Response formatter struct."
-  typedstruct do
-    field :payload, payload(), enforce: true
-  end
-
-  @typep payload :: %{data: Response.t() | Error.t(), prefix: any()}
-  @typep http_response :: {:ok, Response.t()} | {:error, Error.t()}
-
-  @doc """
-  Builds `#{inspect(__MODULE__)} struct.`
-
-  ## Examples
-
-      iex> response = %#{inspect(Response)}{body: "foo", status_code: 200}
-      ...> #{inspect(__MODULE__)}.build({:ok, response}, prefix: Segment.Analytics)
-      %#{inspect(__MODULE__)}{
-        payload: %{
-          data: %#{inspect(Response)}{
-            body: "foo",
-            status_code: 200
-          },
-          prefix: Segment.Analytics
-        }
-      }
-
-      iex> error = %#{inspect(Error)}{id: nil, reason: :errconect}
-      ...> #{inspect(__MODULE__)}.build({:error, error}, prefix: Segment.Analytics)
-      %#{inspect(__MODULE__)}{
-        payload: %{
-          data: %#{inspect(Error)}{id: nil, reason: :errconect},
-          prefix: Segment.Analytics
-        }
-      }
-
-  """
-  @spec build(http_response(), Keyword.t()) :: t()
-  def build(http_response, options \\ [])
-
-  def build({status, %struct{} = response}, options)
-      when status in [:ok, :error] and struct in [Error, Response],
-      do: %__MODULE__{payload: %{data: response, prefix: Keyword.get(options, :prefix)}}
-
-  @doc """
-  Builds a log message from #{inspect(__MODULE__)} struct.
-
-  ## Examples
-
-      iex> payload = %{
-      ...>   data: %#{inspect(Response)}{status_code: 200, body: "foo"},
-      ...>   prefix: Segment.Analytics
-      ...> }
-      ...> #{inspect(__MODULE__)}.format(payload)
-      ~s([Segment.Analytics] call success: 200 with body: foo)
-
-      iex> payload = %{
-      ...>   data: %#{inspect(Response)}{
-      ...>     request: %#{inspect(Request)}{body: "foo", url: "https://example.com"},
-      ...>     status_code: 300
-      ...>   },
-      ...>   prefix: Segment.Analytics
-      ...> }
-      ...> #{inspect(__MODULE__)}.format(payload)
-      ~s([Segment.Analytics] call failed: %HTTPoison.Response{body: nil, headers: [], ) <>
-        ~s(request: %HTTPoison.Request{body: "foo", headers: [], method: :get, ) <>
-        ~s(options: [], params: %{}, url: "https://example.com"}, request_url: nil, ) <>
-        ~s(status_code: 300} with request body: foo)
-
-      iex> payload = %{
-      ...>   data: %#{inspect(Error)}{reason: "foo"},
-      ...>   prefix: Segment.Analytics,
-      ...> }
-      ...> #{inspect(__MODULE__)}.format(payload)
-      ~s([Segment.Analytics] call failed: %HTTPoison.Error{id: nil, reason: "foo"}) <>
-        ~s( with reason: "foo")
-
-  """
-  @spec format(payload()) :: String.t()
-  def format(%{data: %Response{status_code: status_code, body: body}, prefix: prefix})
-      when status_code in 200..299 do
-    [
-      "[",
-      inspect(prefix),
-      "] call success: ",
-      status_code,
-      " with body: ",
-      body
-    ]
-    |> Enum.join()
-  end
-
-  def format(%{data: %Response{request: %Request{body: body}} = response, prefix: prefix}) do
-    [
-      "[",
-      inspect(prefix),
-      "] call failed: ",
-      inspect(response),
-      " with request body: ",
-      body
-    ]
-    |> Enum.join()
-  end
-
-  def format(%{data: %Error{reason: reason} = error, prefix: prefix}) do
-    [
-      "[",
-      inspect(prefix),
-      "] call failed: ",
-      inspect(error),
-      " with reason: ",
-      inspect(reason)
-    ]
-    |> Enum.join()
-  end
-end
diff --git a/lib/segment/config.ex b/lib/segment/config.ex
new file mode 100644
index 0000000..6271fdd
--- /dev/null
+++ b/lib/segment/config.ex
@@ -0,0 +1,80 @@
+defmodule Segment.Config do
+  @moduledoc false
+
+  use TypedStruct
+
+  @boolean_keys ~w(disable_meta_logger drop_nil_fields)a
+  @float_keys ~w(retry_jitter_factor)a
+  @integer_keys ~w(max_retries request_timeout retry_base_delay retry_max_delay)a
+
+  @replacement "[FILTERED]"
+
+  @filter_body [
+    {~r/"address":\s?{.*?}/, ~s("address":{})},
+    {~s("email":\s?".*"), ~s("email":"#{@replacement}")},
+    {~s("first_name":\s?".*"), ~s("first_name":"#{@replacement}")},
+    {~s("last_name":\s?".*"), ~s("last_name":"#{@replacement}")},
+    {~s("phone_number":\s?".*"), ~s("phone_number":"#{@replacement}")}
+  ]
+
+  typedstruct do
+    field :disable_meta_logger, boolean(), default: false
+    field :drop_nil_fields, boolean(), default: false
+    field :endpoint, String.t(), default: "https://api.segment.io/v1/"
+    field :filter_body, Segment.filter_body(), default: @filter_body
+    field :http_adapter, module(), default: Tesla.Adapter.Hackney
+    field :key, String.t()
+    field :max_retries, non_neg_integer(), default: 5
+    field :prefix, atom() | String.t(), default: Segment.Analytics
+    field :request_timeout, non_neg_integer(), default: 5_000
+    field :retry_base_delay, non_neg_integer(), default: 200
+    field :retry_jitter_factor, float(), default: 0.2
+    field :retry_max_delay, non_neg_integer(), default: 5_000
+  end
+
+  @spec boolean_keys :: [atom()]
+  def boolean_keys, do: @boolean_keys
+
+  @spec float_keys :: [atom()]
+  def float_keys, do: @float_keys
+
+  @spec get :: t()
+  @spec get(Segment.options()) :: t()
+  def get(fields \\ []) do
+    :segment
+    |> Application.get_all_env()
+    |> reject_nil_values()
+    |> Keyword.merge(reject_nil_values(fields))
+    |> Keyword.new(&parse/1)
+    |> then(&struct(__MODULE__, &1))
+  end
+
+  @spec integer_keys :: [atom()]
+  def integer_keys, do: @integer_keys
+
+  @spec keys :: [atom()]
+  def keys do
+    %__MODULE__{}
+    |> Map.from_struct()
+    |> Map.keys()
+  end
+
+  @spec reject_nil_values(Keyword.t()) :: Keyword.t()
+  defp reject_nil_values(keywords),
+    do: Keyword.reject(keywords, fn {_key, value} -> is_nil(value) end)
+
+  @spec parse({atom(), any()}) :: {atom(), any()}
+  defp parse({key, value}) when is_binary(value) do
+    value =
+      cond do
+        key in @boolean_keys -> value == "true"
+        key in @float_keys -> String.to_float(value)
+        key in @integer_keys -> String.to_integer(value)
+        true -> value
+      end
+
+    {key, value}
+  end
+
+  defp parse(key_value), do: key_value
+end
diff --git a/lib/segment/encoder.ex b/lib/segment/encoder.ex
index cd6936c..38d2b82 100644
--- a/lib/segment/encoder.ex
+++ b/lib/segment/encoder.ex
@@ -1,48 +1,23 @@
 defmodule Segment.Encoder do
-  @moduledoc """
-  Responsible to transforming structs into JSON strings.
-  """
+  @moduledoc false
 
-  @doc """
-  Encodes a given struct into a JSON string.
+  alias Segment.Config
 
-  ## Options
-
-      * `drop_nil_fields`: If set to `true` all the struct `nil` fields will be
-      filtered out from the JSON string. Defaults to `false`.
-
-  ## Examples
-
-      iex> library = %Segment.Analytics.Context.Library{
-      ...>   name: "foo",
-      ...>   version: "1.0.0"
-      ...> }
-      ...> #{inspect(__MODULE__)}.encode!(library, [])
-      ~s({"version":"1.0.0","transport":null,"name":"foo"})
-
-      iex> library = %Segment.Analytics.Context.Library{
-      ...>   name: "foo",
-      ...>   version: "1.0.0"
-      ...> }
-      ...> #{inspect(__MODULE__)}.encode!(library, drop_nil_fields: true)
-      ~s({"version":"1.0.0","name":"foo"})
-
-  """
-  @spec encode!(struct(), keyword()) :: String.t()
-  def encode!(struct, options) do
+  @spec encode!(struct(), Config.t()) :: String.t()
+  def encode!(struct, %Config{} = config) do
     struct
     |> Miss.Map.from_nested_struct([
       {Date, &Date.to_iso8601/1},
       {DateTime, &DateTime.to_iso8601/1},
       {Decimal, &Decimal.to_float/1}
     ])
-    |> maybe_drop_nil_fields(options)
+    |> maybe_drop_nil_fields(config)
     |> Poison.encode!()
   end
 
-  @spec maybe_drop_nil_fields(map(), keyword()) :: map()
-  defp maybe_drop_nil_fields(map, options) do
-    if Keyword.get(options, :drop_nil_fields) == true do
+  @spec maybe_drop_nil_fields(map(), Config.t()) :: map()
+  defp maybe_drop_nil_fields(map, %Config{} = config) do
+    if config.drop_nil_fields == true do
       drop_nil_fields_from_map(map)
     else
       map
diff --git a/mix.exs b/mix.exs
index b0a4d27..e8d3c7d 100644
--- a/mix.exs
+++ b/mix.exs
@@ -36,10 +36,10 @@ defmodule AnalyticsElixir.Mixfile do
   defp deps do
     [
       {:decimal, "~> 2.0"},
-      {:httpoison, "~> 1.8"},
       {:meta_logger, "~> 1.4"},
       {:miss, "~> 0.1"},
       {:poison, "~> 5.0"},
+      {:tesla, "~> 1.5"},
       {:typed_struct, "~> 0.2", runtime: false},
       {:uuid, "~> 1.1"},
 
@@ -47,10 +47,7 @@ defmodule AnalyticsElixir.Mixfile do
       {:ex_doc, "~> 0.28", only: :dev, runtime: false},
 
       # Static analysis
-      {:dialyxir, "~> 1.1", only: :dev, runtime: false},
-
-      # Test
-      {:bypass, "~> 2.0", only: :test}
+      {:dialyxir, "~> 1.1", only: :dev, runtime: false}
     ]
   end
 
diff --git a/mix.lock b/mix.lock
index 1078634..ab13190 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,40 +1,18 @@
 %{
-  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
-  "bypass": {:hex, :bypass, "2.1.0", "909782781bf8e20ee86a9cabde36b259d44af8b9f38756173e8f5e2e1fabb9b1", [:mix], [{:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}, {:plug_cowboy, "~> 2.0", [hex: :plug_cowboy, repo: "hexpm", optional: false]}, {:ranch, "~> 1.3", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "d9b5df8fa5b7a6efa08384e9bbecfe4ce61c77d28a4282f79e02f1ef78d96b80"},
-  "certifi": {:hex, :certifi, "2.6.1", "dbab8e5e155a0763eea978c913ca280a6b544bfa115633fa20249c3d396d9493", [:rebar3], [], "hexpm", "524c97b4991b3849dd5c17a631223896272c6b0af446778ba4675a1dff53bb7e"},
-  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
-  "cowboy_telemetry": {:hex, :cowboy_telemetry, "0.4.0", "f239f68b588efa7707abce16a84d0d2acf3a0f50571f8bb7f56a15865aae820c", [:rebar3], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:telemetry, "~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "7d98bac1ee4565d31b62d59f8823dfd8356a169e7fcbb83831b8a5397404c9de"},
-  "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
-  "credo": {:hex, :credo, "1.6.4", "ddd474afb6e8c240313f3a7b0d025cc3213f0d171879429bf8535d7021d9ad78", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "c28f910b61e1ff829bffa056ef7293a8db50e87f2c57a9b5c3f57eee124536b7"},
   "decimal": {:hex, :decimal, "2.0.0", "a78296e617b0f5dd4c6caf57c714431347912ffb1d0842e998e9792b5642d697", [:mix], [], "hexpm", "34666e9c55dea81013e77d9d87370fe6cb6291d1ef32f46a1600230b1d44f577"},
   "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
-  "earmark": {:hex, :earmark, "1.3.1", "73812f447f7a42358d3ba79283cfa3075a7580a3a2ed457616d6517ac3738cb9", [:mix], [], "hexpm", "000aaeff08919e95e7aea13e4af7b2b9734577b3e6a7c50ee31ee88cab6ec4fb"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.22", "1de32345aab0d28bc208314937d2e69ff72ac6cacfdf89b1c0b75fc00283eb56", [:mix], [], "hexpm", "e10a2857c3b5333c503c7f95710c64f0beb2cfaa1d9de024513ad5242dc7cad5"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
   "ex_doc": {:hex, :ex_doc, "0.28.2", "e031c7d1a9fc40959da7bf89e2dc269ddc5de631f9bd0e326cbddf7d8085a9da", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "51ee866993ffbd0e41c084a7677c570d0fc50cb85c6b5e76f8d936d9587fa719"},
-  "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
-  "hackney": {:hex, :hackney, "1.17.4", "99da4674592504d3fb0cfef0db84c3ba02b4508bae2dff8c0108baa0d6e0977c", [:rebar3], [{:certifi, "~>2.6.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "de16ff4996556c8548d512f4dbe22dd58a587bf3332e7fd362430a7ef3986b16"},
-  "httpoison": {:hex, :httpoison, "1.8.0", "6b85dea15820b7804ef607ff78406ab449dd78bed923a49c7160e1886e987a3d", [:mix], [{:hackney, "~> 1.17", [hex: :hackney, repo: "hexpm", optional: false]}], "hexpm", "28089eaa98cf90c66265b6b5ad87c59a3729bea2e74e9d08f9b51eb9729b3c3a"},
-  "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
-  "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"},
   "makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.0", "f8c570a0d33f8039513fbccaf7108c5d750f47d8defd44088371191b76492b0b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "28b2cbdc13960a46ae9a8858c4bebdec3c9a6d7b4b9e7f4ed1502f8159f338e7"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
   "meta_logger": {:hex, :meta_logger, "1.7.0", "60e50736bfee20f398861f3b8e4646247896bd9e435272454b92e1dc6b0139e5", [:mix], [{:miss, "~> 0.1", [hex: :miss, repo: "hexpm", optional: true]}, {:tesla, "~> 1.4", [hex: :tesla, repo: "hexpm", optional: true]}], "hexpm", "29f5d40eaadde01c51369130321a0d603e4de95a634d5707485756cc7f297cc8"},
-  "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
   "mime": {:hex, :mime, "2.0.2", "0b9e1a4c840eafb68d820b0e2158ef5c49385d17fb36855ac6e7e087d4b1dcc5", [:mix], [], "hexpm", "e6a3f76b4c277739e36c2e21a2c640778ba4c3846189d5ab19f97f126df5f9b7"},
-  "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
   "miss": {:hex, :miss, "0.1.5", "dcf0771834ecd82580ff02d7299563c327afa8330485d281afe0b9512adcd500", [:mix], [], "hexpm", "494aba3ba3ed8a290714b4b9ff8c8d750b76dccb63c1aca21830a74989f8a047"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"},
-  "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
-  "plug": {:hex, :plug, "1.13.4", "addb6e125347226e3b11489e23d22a60f7ab74786befb86c14f94fb5f23ca9a4", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "06114c1f2a334212fe3ae567dbb3b1d29fd492c1a09783d52f3d489c1a6f4cf2"},
-  "plug_cowboy": {:hex, :plug_cowboy, "2.5.2", "62894ccd601cf9597e2c23911ff12798a8a18d237e9739f58a6b04e4988899fe", [:mix], [{:cowboy, "~> 2.7", [hex: :cowboy, repo: "hexpm", optional: false]}, {:cowboy_telemetry, "~> 0.3", [hex: :cowboy_telemetry, repo: "hexpm", optional: false]}, {:plug, "~> 1.7", [hex: :plug, repo: "hexpm", optional: false]}], "hexpm", "ea6e87f774c8608d60c8d34022a7d073bd7680a0a013f049fc62bf35efea1044"},
-  "plug_crypto": {:hex, :plug_crypto, "1.2.2", "05654514ac717ff3a1843204b424477d9e60c143406aa94daf2274fdd280794d", [:mix], [], "hexpm", "87631c7ad914a5a445f0a3809f99b079113ae4ed4b867348dd9eec288cecb6db"},
   "poison": {:hex, :poison, "5.0.0", "d2b54589ab4157bbb82ec2050757779bfed724463a544b6e20d79855a9e43b24", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "11dc6117c501b80c62a7594f941d043982a1bd05a1184280c0d9166eb4d8d3fc"},
-  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
-  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
-  "telemetry": {:hex, :telemetry, "1.0.0", "0f453a102cdf13d506b7c0ab158324c337c41f1cc7548f0bc0e130bbf0ae9452", [:rebar3], [], "hexpm", "73bc09fa59b4a0284efb4624335583c528e07ec9ae76aca96ea0673850aec57a"},
+  "tesla": {:hex, :tesla, "1.9.0", "8c22db6a826e56a087eeb8cdef56889731287f53feeb3f361dec5d4c8efb6f14", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:finch, "~> 0.13", [hex: :finch, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, ">= 1.0.0", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "4.4.2", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.0", [hex: :mint, repo: "hexpm", optional: true]}, {:msgpax, "~> 2.3", [hex: :msgpax, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "7c240c67e855f7e63e795bf16d6b3f5115a81d1f44b7fe4eadbf656bae0fef8a"},
   "typed_struct": {:hex, :typed_struct, "0.2.1", "e1993414c371f09ff25231393b6430bd89d780e2a499ae3b2d2b00852f593d97", [:mix], [], "hexpm", "8f5218c35ec38262f627b2c522542f1eae41f625f92649c0af701a6fab2e11b3"},
-  "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
   "uuid": {:hex, :uuid, "1.1.8", "e22fc04499de0de3ed1116b770c7737779f226ceefa0badb3592e64d5cfb4eb9", [:mix], [], "hexpm", "c790593b4c3b601f5dc2378baae7efaf5b3d73c4c6456ba85759905be792f2ac"},
 }
diff --git a/test/segment/analytics/http_test.exs b/test/segment/analytics/http_test.exs
deleted file mode 100644
index 545544e..0000000
--- a/test/segment/analytics/http_test.exs
+++ /dev/null
@@ -1,70 +0,0 @@
-defmodule Segment.Analytics.HttpTest do
-  # not used in async mode because of Bypass
-  # test fail randomly
-  use ExUnit.Case
-
-  @apikey "afakekey"
-  @url "something"
-  @body ~s({"sample": "body"})
-
-  setup do
-    bypass = Bypass.open()
-    start_supervised!({Segment, [key: @apikey, endpoint: endpoint_url(bypass.port)]})
-
-    {:ok, bypass: bypass}
-  end
-
-  describe "post/4" do
-    test "the request sent is correct", %{bypass: bypass} do
-      Bypass.expect(bypass, "POST", "/#{@url}", fn conn ->
-        [
-          {"accept", "application/json"},
-          {"content-type", "application/json"},
-          {"x-api-key", @apikey}
-        ]
-        |> Enum.each(fn {header, value} ->
-          assert [value] == Plug.Conn.get_req_header(conn, header)
-        end)
-
-        assert {:ok, @body, _conn} = Plug.Conn.read_body(conn)
-
-        Plug.Conn.resp(conn, 200, "")
-      end)
-
-      Segment.Analytics.Http.post(@url, @body, [])
-    end
-
-    test "when endpoint and key are given via options, " <>
-           "sends the request to the correct endpoint",
-         %{bypass: bypass} do
-      Bypass.expect(bypass, "POST", "/#{@url}", fn _conn ->
-        flunk("#{endpoint_url(bypass.port)} shouldn't be called")
-      end)
-
-      Bypass.pass(bypass)
-
-      another_bypass = Bypass.open()
-      another_apikey = "foobarbaz"
-      options = [key: another_apikey, endpoint: endpoint_url(another_bypass.port)]
-
-      Bypass.expect(another_bypass, "POST", "/#{@url}", fn conn ->
-        [
-          {"accept", "application/json"},
-          {"content-type", "application/json"},
-          {"x-api-key", another_apikey}
-        ]
-        |> Enum.each(fn {header, value} ->
-          assert [value] == Plug.Conn.get_req_header(conn, header)
-        end)
-
-        assert {:ok, @body, _conn} = Plug.Conn.read_body(conn)
-
-        Plug.Conn.resp(conn, 200, "")
-      end)
-
-      Segment.Analytics.Http.post(@url, @body, options)
-    end
-  end
-
-  def endpoint_url(port), do: "http://localhost:#{port}/"
-end
diff --git a/test/segment/analytics/model_test.exs b/test/segment/analytics/model_test.exs
index 9faa104..20e7206 100644
--- a/test/segment/analytics/model_test.exs
+++ b/test/segment/analytics/model_test.exs
@@ -1,7 +1,5 @@
 defmodule Segment.Analytics.Context.LibraryTest do
-  # not used in async mode because of Bypass
-  # test fail randomly
-  use ExUnit.Case
+  use ExUnit.Case, async: true
 
   alias Segment.Analytics.Context.Library
 
diff --git a/test/segment/analytics/response_formatter_test.exs b/test/segment/analytics/response_formatter_test.exs
deleted file mode 100644
index fa3543f..0000000
--- a/test/segment/analytics/response_formatter_test.exs
+++ /dev/null
@@ -1,68 +0,0 @@
-defmodule Segment.Analytics.ResponseFormatterTest do
-  use ExUnit.Case, async: true
-
-  alias Segment.Analytics.ResponseFormatter, as: Subject
-
-  doctest Subject
-
-  alias HTTPoison.{Error, Request, Response}
-
-  setup do
-    error = %Error{reason: "foo"}
-
-    failed_response = %Response{
-      status_code: 300,
-      request: %Request{body: "foo", url: "https://example.com"}
-    }
-
-    success_response = %Response{status_code: 200, body: "foo"}
-
-    {:ok,
-     error: error,
-     error_struct: %Subject{payload: %{data: error, prefix: Segment.Analytics}},
-     failed_struct: %Subject{payload: %{data: failed_response, prefix: Segment.Analytics}},
-     success_response: success_response,
-     success_struct: %Subject{payload: %{data: success_response, prefix: Segment.Analytics}}}
-  end
-
-  describe "build/2" do
-    test "returns response formatter struct with response and prefix", %{
-      success_response: response,
-      success_struct: expected_response
-    } do
-      assert Subject.build({:ok, response}, prefix: Segment.Analytics) == expected_response
-    end
-
-    test "when error is given, returns response formatter struct with error and prefix", %{
-      error: error,
-      error_struct: expected_response
-    } do
-      assert Subject.build({:error, error}, prefix: Segment.Analytics) == expected_response
-    end
-  end
-
-  describe "format/1" do
-    test "when payload have a success response, resturns formatted log message",
-         %{success_struct: %Subject{payload: payload}} do
-      assert Subject.format(payload) == ~s([Segment.Analytics] call success: 200 with body: foo)
-    end
-
-    test "when payload have a failed response, returns formatted log message",
-         %{failed_struct: %Subject{payload: payload}} do
-      assert Subject.format(payload) ==
-               ~s([Segment.Analytics] call failed: %HTTPoison.Response{) <>
-                 ~s(body: nil, headers: [], request: %HTTPoison.Request{body: ) <>
-                 ~s("foo", headers: [], method: :get, options: [], params: %{}, ) <>
-                 ~s(url: \"https://example.com\"}, request_url: nil, status_code:) <>
-                 ~s( 300} with request body: foo)
-    end
-
-    test "when payload have an error, returns formatted log message", %{
-      error_struct: %Subject{payload: payload}
-    } do
-      assert Subject.format(payload) ==
-               ~s([Segment.Analytics] call failed: %HTTPoison.Error{id: nil, ) <>
-                 ~s(reason: "foo"} with reason: "foo")
-    end
-  end
-end
diff --git a/test/segment/analytics_test.exs b/test/segment/analytics_test.exs
index 6b9f17d..cb043ef 100644
--- a/test/segment/analytics_test.exs
+++ b/test/segment/analytics_test.exs
@@ -1,14 +1,120 @@
-defmodule Segment.Analytics.AnalyticsTest do
-  # not used in async mode because of Bypass
-  # test fail randomly
+defmodule Segment.AnalyticsTest do
   use ExUnit.Case
+
   import ExUnit.CaptureLog
+  import Tesla.Mock
+
+  alias Segment.Analytics, as: Subject
+
+  @version Mix.Project.get().project[:version]
+
+  describe "call/2" do
+    test "sends an event, and returns the response" do
+      response_body = mocked_response_body()
+      mock_request(request_body_with_nil_values(), {200, [], response_body})
+      assert_call_result({:ok, response_body}, successful_logs())
+    end
+
+    test "when `drop_nil_fields` option is set to `true`, sends an event without " <>
+           "null JSON attributes, and returns the response" do
+      response_body = mocked_response_body()
+      mock_request(request_body_without_nil_values(), {200, [], response_body})
+      assert_call_result([drop_nil_fields: true], {:ok, response_body}, successful_logs())
+    end
 
-  setup do
-    bypass = Bypass.open()
-    start_supervised({Segment, [key: "123", endpoint: endpoint_url(bypass.port)]})
-    version = Mix.Project.get().project[:version]
+    test "sends an event using endpoint and key from options, and returns the response" do
+      response_body = mocked_response_body()
+      mock_request(request_body_with_nil_values(), {200, [], response_body})
 
+      endpoint = "https://some-other-endpoint.vio.io/"
+
+      assert_call_result(
+        [endpoint: endpoint, key: "anotherkey"],
+        {:ok, response_body},
+        successful_logs(endpoint)
+      )
+    end
+
+    test "when failed to request, tries again" do
+      response_body = mocked_response_body()
+
+      mock_request(request_body_with_nil_values(), [
+        {:error, :timeout},
+        {:error, :timeout},
+        {:error, :timeout},
+        {200, [], response_body}
+      ])
+
+      assert_call_result(
+        [retry_base_delay: 1],
+        {:ok, response_body},
+        retried_successful_logs(3, ":timeout")
+      )
+    end
+
+    test "when failed to request and no retries left, returns error" do
+      mock_request(request_body_with_nil_values(), {:error, :nxdomain})
+      assert_call_result([max_retries: 0], {:error, ":nxdomain"}, failed_logs(":nxdomain"))
+    end
+
+    test "with meta logger disabled, does not log requests and responses" do
+      response_body = mocked_response_body()
+
+      mock_request(request_body_with_nil_values(), [
+        {:error, :timeout},
+        {200, [], response_body}
+      ])
+
+      # No logs whatsoever on success, even with retried requests
+      assert_call_result(
+        [disable_meta_logger: true, retry_base_delay: 1],
+        {:ok, response_body},
+        []
+      )
+
+      # Analytics still logs if no request succeeds.
+      assert_call_result(
+        [disable_meta_logger: true, max_retries: 0],
+        {:error, ":timeout"},
+        analytics_failed_logs()
+      )
+    end
+  end
+
+  defp mock_request(expected_request_body, responses) when is_list(responses) do
+    mock_global(fn %Tesla.Env{} = env ->
+      assert_request_body(env, expected_request_body)
+      index = Process.get(:attempts, 0)
+      Process.put(:attempts, index + 1)
+      Enum.fetch!(responses, index)
+    end)
+  end
+
+  defp mock_request(expected_request_body, response) do
+    mock_global(fn %Tesla.Env{} = env ->
+      assert_request_body(env, expected_request_body)
+      response
+    end)
+  end
+
+  defp assert_request_body(%Tesla.Env{} = env, expected_request_body) do
+    request_body =
+      env.body
+      |> Poison.decode!()
+      |> Map.delete("sentAt")
+      |> Map.update!("batch", &Enum.map(&1, fn event -> Map.delete(event, "messageId") end))
+
+    assert request_body == expected_request_body
+  end
+
+  defp assert_call_result(expected_result, expected_logs) do
+    # asserts call/1
+    assert_call_result(nil, expected_result, expected_logs)
+    # asserts call/2
+    assert_call_result([], expected_result, expected_logs)
+  end
+
+  defp assert_call_result(options, expected_result, expected_logs) do
     event = %Segment.Analytics.Track{
       userId: nil,
       event: "test1",
@@ -16,7 +122,30 @@ defmodule Segment.Analytics.AnalyticsTest do
       context: %Segment.Analytics.Context{}
     }
 
-    expected_request_body = %{
+    fn ->
+      result =
+        case options do
+          nil -> Subject.call(event)
+          options -> Subject.call(event, options)
+        end
+
+      assert %Task{} = task = result
+
+      assert Task.await(task) == expected_result
+    end
+    |> capture_log()
+    |> String.replace([IO.ANSI.normal(), IO.ANSI.red(), IO.ANSI.reset()], "")
+    |> String.split("\n", trim: true)
+    |> Enum.zip(List.wrap(expected_logs))
+    |> Enum.each(fn {log, expected_log_substrings} ->
+      for expected_log_substring <- List.wrap(expected_log_substrings) do
+        assert log =~ expected_log_substring
+      end
+    end)
+  end
+
+  defp request_body_with_nil_values do
+    %{
       "batch" => [
         %{
           "anonymousId" => nil,
@@ -26,7 +155,7 @@ defmodule Segment.Analytics.AnalyticsTest do
             "library" => %{
               "name" => "analytics_elixir",
               "transport" => "http",
-              "version" => version
+              "version" => @version
             },
             "location" => nil,
             "os" => nil,
@@ -46,148 +175,64 @@ defmodule Segment.Analytics.AnalyticsTest do
         }
       ]
     }
-
-    expected_response = ~s({"another": {"json": ["response"]}}, "address":{"city": "Amsterdam"}})
-
-    {:ok,
-     bypass: bypass,
-     event: event,
-     expected_request_body: expected_request_body,
-     expected_response: expected_response,
-     version: version}
   end
 
-  describe "call/2" do
-    test "sends an event, and returns the response", %{
-      bypass: bypass,
-      event: event,
-      expected_request_body: expected_request_body,
-      expected_response: expected_response
-    } do
-      Bypass.expect(bypass, fn conn ->
-        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
-
-        # messageId and sentAt are not asserted
-        %{"batch" => [received_event | _received_events]} =
-          received_body
-          |> Poison.decode!()
-          |> Map.delete("sentAt")
-
-        received_event = Map.delete(received_event, "messageId")
-
-        assert %{"batch" => [received_event]} == expected_request_body
-        Plug.Conn.resp(conn, 200, expected_response)
-      end)
-
-      log =
-        capture_log(fn ->
-          task = Segment.Analytics.call(event)
-          assert {:ok, expected_response} == Task.await(task)
-        end)
-
-      assert log =~
-               ~s([Segment.Analytics] call success: 200 with body: ) <>
-                 ~s({"another": {"json": ["response"]}}, "address":{}})
-    end
-
-    test "when `drop_nil_fields` option is set to `true`, sends an event without " <>
-           "null JSON attributes, and returns the response",
-         %{
-           bypass: bypass,
-           event: event,
-           expected_response: expected_response,
-           version: version
-         } do
-      expected_request_body = %{
-        "batch" => [
-          %{
-            "context" => %{
-              "library" => %{
-                "name" => "analytics_elixir",
-                "transport" => "http",
-                "version" => version
-              }
-            },
-            "event" => "test1",
-            "properties" => %{},
-            "type" => "track"
-          }
-        ]
-      }
-
-      Bypass.expect(bypass, fn conn ->
-        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
-
-        # messageId and sentAt are not asserted
-        %{"batch" => [received_event | _received_events]} =
-          received_body
-          |> Poison.decode!()
-          |> Map.delete("sentAt")
-
-        received_event = Map.delete(received_event, "messageId")
-
-        assert %{"batch" => [received_event]} == expected_request_body
-        Plug.Conn.resp(conn, 200, expected_response)
-      end)
-
-      task = Segment.Analytics.call(event, drop_nil_fields: true)
-      assert {:ok, expected_response} == Task.await(task)
-    end
+  defp request_body_without_nil_values do
+    %{
+      "batch" => [
+        %{
+          "context" => %{
+            "library" => %{
+              "name" => "analytics_elixir",
+              "transport" => "http",
+              "version" => @version
+            }
+          },
+          "event" => "test1",
+          "properties" => %{},
+          "type" => "track"
+        }
+      ]
+    }
   end
 
-  describe "call/2 when another endpoint and key were given" do
-    setup %{bypass: bypass} do
-      Bypass.expect(bypass, fn _conn ->
-        flunk("#{endpoint_url(bypass.port)} shouldn't be called")
-      end)
-
-      Bypass.pass(bypass)
-
-      {:ok, bypass: Bypass.open()}
-    end
-
-    test "sends an event using endpoint and key from options, and returns the response", %{
-      bypass: bypass,
-      event: event,
-      expected_request_body: expected_request_body,
-      expected_response: expected_response
-    } do
-      Bypass.expect(bypass, fn conn ->
-        {:ok, received_body, _conn} = Plug.Conn.read_body(conn)
-
-        # messageId and sentAt are not asserted
-        %{"batch" => [received_event | _received_events]} =
-          received_body
-          |> Poison.decode!()
-          |> Map.delete("sentAt")
-
-        received_event = Map.delete(received_event, "messageId")
-
-        assert %{"batch" => [received_event]} == expected_request_body
-        Plug.Conn.resp(conn, 200, expected_response)
-      end)
-
-      options = [key: "anotherkey", endpoint: endpoint_url(bypass.port)]
-
-      task = Segment.Analytics.call(event, options)
-      assert {:ok, expected_response} == Task.await(task)
-    end
-
-    test "when fail to reach the server returns error", %{event: event} do
-      expected_response = ~s({"reason":":nxdomain"})
+  defp mocked_response_body do
+    Poison.encode!(%{
+      "another" => %{"json" => ["response"]},
+      "address" => %{"city" => "Amsterdam"}
+    })
+  end
 
-      options = [key: "invalidendpoint", endpoint: "http://invalidend.point"]
+  defp successful_logs(endpoint \\ "https://api.segment.io/v1/") do
+    [
+      [
+        "[info] [Segment.Analytics.HTTP] POST #{endpoint}",
+        ~s({"x-api-key", "[FILTERED]"}])
+      ],
+      "[info] [Segment.Analytics.HTTP] {",
+      "[info] [Segment.Analytics.HTTP] 200",
+      ["[info] [Segment.Analytics.HTTP] {", ~s("address":{})]
+    ]
+  end
 
-      log =
-        capture_log(fn ->
-          task = Segment.Analytics.call(event, options)
-          assert {:error, expected_response} == Task.await(task)
-        end)
+  defp failed_logs(reason) do
+    api_failed_logs(reason) ++ analytics_failed_logs()
+  end
 
-      assert log =~
-               ~s(call failed: %HTTPoison.Error{id: nil, reason: :nxdomain} with reason: :nxdomain)
-    end
+  defp api_failed_logs(reason) do
+    [
+      [
+        "[info] [Segment.Analytics.HTTP] POST https://api.segment.io/v1/",
+        ~s({"x-api-key", "[FILTERED]"}])
+      ],
+      "[info] [Segment.Analytics.HTTP] {",
+      "[error] [Segment.Analytics.HTTP] #{reason}"
+    ]
   end
 
-  defp endpoint_url(port), do: "http://localhost:#{port}/"
+  defp analytics_failed_logs,
+    do: ["[error] [Segment.Analytics] Segment API request failed"]
+
+  defp retried_successful_logs(amount, reason),
+    do: Enum.flat_map(1..amount, fn _index -> api_failed_logs(reason) end) ++ successful_logs()
 end
diff --git a/test/segment/config_test.exs b/test/segment/config_test.exs
new file mode 100644
index 0000000..f39de93
--- /dev/null
+++ b/test/segment/config_test.exs
@@ -0,0 +1,57 @@
+defmodule Segment.ConfigTest do
+  use ExUnit.Case, async: true
+
+  alias Segment.Config, as: Subject
+
+  @default_config %Subject{http_adapter: Tesla.Mock, key: "my-amazing-key"}
+
+  describe "get/0" do
+    test "returns default config" do
+      assert Subject.get() == @default_config
+    end
+  end
+
+  describe "get/1" do
+    test "with empty options, returns default config" do
+      assert Subject.get([]) == @default_config
+    end
+
+    for key <- Subject.keys() do
+      @tag options: [{key, :value}], result: struct!(@default_config, [{key, :value}])
+      test "returns config with updated #{inspect(key)} value", context do
+        assert Subject.get(context.options) == context.result
+      end
+
+      @tag options: [{key, nil}], result: @default_config
+      test "ignores nil #{inspect(key)}, returns default config", context do
+        assert Subject.get(context.options) == context.result
+      end
+    end
+
+    for key <- Subject.boolean_keys() do
+      @tag options: [{key, "true"}], result: struct!(@default_config, [{key, true}])
+      test "returns config with parsed true string for #{inspect(key)}", context do
+        assert Subject.get(context.options) == context.result
+      end
+
+      @tag options: [{key, "untrue"}], result: struct!(@default_config, [{key, false}])
+      test "returns config with parsed untrue string for #{inspect(key)}", context do
+        assert Subject.get(context.options) == context.result
+      end
+    end
+
+    for key <- Subject.float_keys() do
+      @tag options: [{key, "0.2"}], result: struct!(@default_config, [{key, 0.2}])
+      test "returns config with parsed string for #{inspect(key)}", context do
+        assert Subject.get(context.options) == context.result
+      end
+    end
+
+    for key <- Subject.integer_keys() do
+      @tag options: [{key, "10000"}], result: struct!(@default_config, [{key, 10_000}])
+      test "returns config with parsed string for #{inspect(key)}", context do
+        assert Subject.get(context.options) == context.result
+      end
+    end
+  end
+end
diff --git a/test/segment/encoder_test.exs b/test/segment/encoder_test.exs
index 9841a85..8658acc 100644
--- a/test/segment/encoder_test.exs
+++ b/test/segment/encoder_test.exs
@@ -3,8 +3,7 @@ defmodule Segment.EncoderTest do
 
   alias Segment.Encoder, as: Subject
 
-  doctest Subject
-
+  alias Segment.Config
   alias Segment.Support.Factory
 
   describe "encode!/2" do
@@ -15,34 +14,28 @@ defmodule Segment.EncoderTest do
     end
 
     test "transforms a struct into a JSON string", %{batch: batch} do
-      expected_response =
-        :batch
-        |> Factory.map_for()
-        |> Poison.encode!()
-
-      assert Subject.encode!(batch, []) == expected_response
+      assert_encode!(batch, %Config{}, :batch)
     end
 
     test "when `drop_nil_fields` options is `true`, " <>
            "returns a JSON string without `null` attributes",
          %{batch: batch} do
-      expected_response =
-        :batch_without_null
-        |> Factory.map_for()
-        |> Poison.encode!()
-
-      assert Subject.encode!(batch, drop_nil_fields: true) == expected_response
+      assert_encode!(batch, %Config{drop_nil_fields: true}, :batch_without_null)
     end
 
     test "when `drop_nil_fields` option is set to something different than `true`," <>
            "returns a JSON string with `null` attributes",
          %{batch: batch} do
-      expected_response =
-        :batch
-        |> Factory.map_for()
-        |> Poison.encode!()
-
-      assert Subject.encode!(batch, drop_nil_fields: "Please don't") == expected_response
+      assert_encode!(batch, %Config{drop_nil_fields: "Please don't"}, :batch)
     end
   end
+
+  defp assert_encode!(batch, %Config{} = config, result_factory) do
+    # For OTP 26+, it is required to parse the encoded value back to map since the order is not
+    # predictable.
+
+    result = Subject.encode!(batch, config)
+
+    assert Poison.decode!(result) == Factory.string_map_for(result_factory)
+  end
 end
diff --git a/test/segment_test.exs b/test/segment_test.exs
deleted file mode 100644
index c360753..0000000
--- a/test/segment_test.exs
+++ /dev/null
@@ -1,44 +0,0 @@
-defmodule SegmentTest do
-  use ExUnit.Case
-
-  doctest Segment
-
-  @segment_test_key System.get_env("SEGMENT_KEY")
-
-  setup do
-    {:ok, config: [key: @segment_test_key, endpoint: "https://api.segment.io/v1/track"]}
-  end
-
-  test "tracks debugging", %{config: config} do
-    start_supervised!({Segment, config})
-
-    t = Segment.Analytics.track("343434", "track debugging #{elem(:os.timestamp(), 2)}")
-    Task.await(t)
-  end
-
-  describe "key/0" do
-    test "returns segment key", %{config: config} do
-      start_supervised!({Segment, config})
-
-      assert Segment.key() == Keyword.get(config, :key)
-    end
-
-    test "when agent was not started, raises an error" do
-      assert {:noproc, {GenServer, :call, [Segment, {:get, _function}, 5000]}} =
-               catch_exit(Segment.key())
-    end
-  end
-
-  describe "endpoint/0" do
-    test "returns segment endpoint", %{config: config} do
-      start_supervised!({Segment, config})
-
-      assert Segment.endpoint() == Keyword.get(config, :endpoint)
-    end
-
-    test "when agent was not started, returns nil" do
-      assert {:noproc, {GenServer, :call, [Segment, {:get, _function}, 5000]}} =
-               catch_exit(Segment.endpoint())
-    end
-  end
-end
diff --git a/test/support/factory.ex b/test/support/factory.ex
index 514ea4c..2d8253d 100644
--- a/test/support/factory.ex
+++ b/test/support/factory.ex
@@ -142,4 +142,11 @@ defmodule Segment.Support.Factory do
       type: "track"
     }
   end
+
+  def string_map_for(key) do
+    key
+    |> map_for()
+    |> Poison.encode!()
+    |> Poison.decode!()
+  end
 end

From d939b045aeaa4b5748c8630e4701f73119f29727 Mon Sep 17 00:00:00 2001
From: Jonathan Moraes <altjohndev@gmail.com>
Date: Mon, 29 Apr 2024 11:04:17 +0200
Subject: [PATCH 33/33] Bump to 2.0.0

---
 CHANGELOG.md | 5 ++++-
 mix.exs      | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9888930..9acaaa2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
 
+## [2.0.0] - 2024-04-29
+
 ### Changed
 
 - Replaced `HTTPoison` library with `Tesla`.
@@ -95,7 +97,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 - First release.
 
-[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/1.3.1...master
+[unreleased]: https://github.com/FindHotel/analytics-elixir/compare/2.0.0...master
+[2.0.0]: https://github.com/FindHotel/analytics-elixir/compare/1.3.1...2.0.0
 [1.3.1]: https://github.com/FindHotel/analytics-elixir/compare/1.3.0...1.3.1
 [1.3.0]: https://github.com/FindHotel/analytics-elixir/compare/1.2.1...1.3.0
 [1.2.1]: https://github.com/FindHotel/analytics-elixir/compare/1.2.0...1.2.1
diff --git a/mix.exs b/mix.exs
index e8d3c7d..1c5fcac 100644
--- a/mix.exs
+++ b/mix.exs
@@ -1,7 +1,7 @@
 defmodule AnalyticsElixir.Mixfile do
   use Mix.Project
 
-  @version "1.3.1"
+  @version "2.0.0"
   @source_url "https://github.com/FindHotel/analytics-elixir"
 
   def project do