Node.js zlib.inflateRawSync() Method

Last Updated : 28 Apr, 2025

The zlib.inflateRawSync() method is an inbuilt application programming interface of the Zlib module which is used to decompress a chunk of data with InflateRaw.

 Syntax:

zlib.inflateRawSync( buffer, options )

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

  • buffer: This parameter holds the buffer of type Buffer, TypedArray, DataView, ArrayBuffer, and string.
  • options: This parameter holds the value of the zlib option.

Return Value: It returns the chunk of data with InflateRaw. 

The below examples illustrate the use of zlib.inflateRawSync() method in Node.js: 

Example 1: 

javascript 
// Node.js program to demonstrate the    
// inflateRawSync() method

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

// Declaring input and assigning
// it a value string
const input = "GeeksforGeeks";

// Calling deflateRawSync method
const deflatedRS = zlib.deflateRawSync(input);

// Calling inflateRawSync method
const inflatedRS = zlib.inflateRawSync(
    new Buffer.from(deflatedRS)).toString();

console.log(inflatedRS);

Output:

GeeksforGeeks

Example 2: 

javascript 
// Node.js program to demonstrate the    
// inflateRawSync() method

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

// Declaring input and assigning
// it a value string
const input = "GeeksforGeeks";

// Calling deflateRawSync method
const deflatedRS = zlib.deflateRawSync(
    input).toString('hex')

// Calling inflateRawSync method
const inflatedRS = zlib.inflateRawSync(new Buffer.from(
    deflatedRS, 'hex')).toString('hex');

console.log(inflatedRS);

Output:

4765656b73666f724765656b73

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

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