Node.js zlib.brotliCompressSync() Method

Node.js zlib.brotliCompress() Method

Last Updated : 12 Oct, 2021

The zlib.brotliCompress() method is an inbuilt application programming interface of the Zlib module which is used to compresses a chunk of data. Syntax:

zlib.brotliCompress( buffer, options, callback )

Parameters: This method accepts three parameters as mentioned above and described below:

buffer: It can be of type Buffer, TypedArray, DataView, ArrayBuffer, and string.
options: It is an optional parameter that holds the zlib options.
callback: It holds the callback function.

Return Value: It returns the chunk of data after compression. Below examples illustrate the use of zlib.brotliCompress() method in Node.js: Example 1:

javascript

// Node.js program to demonstrate the     
// brotliCompress() method

// Including zlib module
const zlib = require("zlib");

// Declaring input and assigning
// it a value string
var input = "Computer Science";

// Calling brotliCompress method
zlib.brotliCompress(input, (err, buffer) => {

        console.log(buffer.toString('base64'));
});

Output:

Gw8A+CUAqhBDSpVv9iA=

Example 2:

javascript

// Node.js program to demonstrate the     
// brotliCompress() method

// Including zlib module
const zlib = require("zlib");

// Declaring input and assigning
// it a value string
var input = "Computer Science";

// Calling brotliCompress method
zlib.brotliCompress(input, (err, buffer) => {
  if(!err) {
      console.log(buffer.toString('hex'));
  }
  else {
      console.log(err);
  }
});

Output:

1b0f00f82500aa10434a956ff620

Reference: https://nodejs.org/api/zlib.html#zlib_zlib_brotlicompress_buffer_options_callback

Node.js zlib.brotliCompressSync() Method

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