This exercise implements a flask API for below requirements.

Create an HTTP API which stores objects owned by repositories.

• A repository is identified by a string.
• An object is an arbitrary sequence of bytes.
• Each object has an ID string, the SHA-256 hash of the object in hex format.

API users should be able to add a new object to a repository, retrieve an object from a repository and delete an object from a repository. These details are specified below.

• GET
• PUT
• DELETE

If a request uses any other HTTP method, you should return 405 (bad method).

Requests use the path /REPOSITORY, where REPOSITORY is a string which identifies the repository that the object should be added to.

PUT /data/somerepo HTTP/1.1

Hello, world!

Responses should be in JSON-format. They should contain the object ID and size in bytes. For example, oid below equals the hash of "Hello, world!". HTTP code 201 should be returned.

HTTP/1.1 201 Created
Content-Length: 84
Content-Type: application/json

{"oid":"315f5bdb76d078c43b8ac0064e4a0164612b1fce77c869345bfc94c75894edd3","size":13}

Requests specify a repository and object ID in the URL path.

GET /somerepo/315f5bdb76d078c43b8ac0064e4a0164612b1fce77c869345bfc94c75894edd3 HTTP/1.1

Responses should return the object bytes in the body. If the specified repository or object ID do not exist, return HTTP code 404. Note: your response headers will not be checked.

HTTP/1.1 200 OK
Content-Length: 13

Hello, world!

Deletion should return HTTP code 200 always.

DELETE /somerepo/315f5bdb76d078c43b8ac0064e4a0164612b1fce77c869345bfc94c75894edd3 HTTP/1.1