008 Node.js Zlib

The Node.js zlib used for compression implemented using Gzip and Deflate/Inflate.zlib module can be added as  

const obj = require('zlib');
 
Below is the code to compress file.

Example 1

const obj = require('zlib');
const gobj = obj.createGzip();
const fs = require('fs');
const inp = fs.createReadStream('myFile.txt');
const out = fs.createWriteStream('myFile.txt.gz');

inp.pipe(gobj).pipe(out);
 

Output :

Below is the code to de compress file.

Example 2
 
const obj = require('zlib');
const gobj = obj.createGzip();
const fs = require('fs');
const inp = fs.createReadStream('myFile.txt.gz');
const out = fs.createWriteStream('myFile.txt');

inp.pipe(gobj).pipe(out);
 
Output :