0
1
Mitul Dabhi
answered Nov 30 '-1 00:00
node-zip will help to make zip / unzip the files
install node-zip in Node JS
npm install node-zip
Example ::
var fs = require('fs');
var path = require('path');
var zip = new require('node-zip')();
zip.file('some.txt', fs.readFileSync(path.join(__dirname, 'some.txt')));
var data = zip.generate({ base64:false, compression: 'DEFLATE' });
fs.writeFileSync('test.zip', data, 'binary');
will output test.zip
one can add multiple file by file function like this
zip.file('some.txt', fs.readFileSync(path.join(__dirname, 'some.txt')));
zip.file('some2.txt', fs.readFileSync(path.join(__dirname, 'some2.txt')));
1
shyam
answered Nov 30 '-1 00:00
node-native-zip is native module without any dependency , help to archive , make zip from text input or files in Node JS
install node-native-zip in Node JS
npm install node-native-zip
How to make zip file with node js ?
lets see one example
var fs = require("fs");
var zip = require("node-native-zip");
var archive = new zip();
archive.add("one.txt", new Buffer("Hello world", "utf8"));
var buffer = archive.toBuffer();
fs.writeFile("./one.zip", buffer, function () {
console.log("Finished");
});
0
Rasi
answered Nov 30 '-1 00:00
Zlib is useful module to make compression in Gzip and Deflate/Inflate format.
dont need to install Zlib module . its come with Node . so lets start work with it
var zlib = require('zlib');
require('zlib') provide us instance of module .
createGzip() function provide us gzip format zlib instance
const gzip = zlib.createGzip();
lets read a file through fs module
const fs = require('fs');
const inp = fs.createReadStream('test.txt');
createReadStream() will streams from which data can be read
now create another stream to write by createWriteStream
const out = fs.createWriteStream('text.txt.gz');
now lets write zip from text file
inp.pipe(gzip).pipe(out);
Compressing a stream by piping the source stream data through a zlib stream into a destination
final code
gzip.js
var zlib = require('zlib');
const gzip = zlib.createGzip();
const fs = require('fs');
const inp = fs.createReadStream('test.txt');
const out = fs.createWriteStream('text.txt.gz');
inp.pipe(gzip).pipe(out);