How can I compress a file into .rar using nodejs? - node.js

Question

I have a file named mytext.txt and I'd like to compress this file to archive.rar. How can I do this in nodejs?
I've found nothing similar to rar only zip.

Answer 1

Find an rar command line utility that you can execute like
$ rar myfile.dat compressed.rar
Node.js can do command line calls. (See child_process.exec)
Give the normal command to the exec function, and it should get the job done.

Answer 2

For zipping a single file, zlib module can be very useful.
(function () {
'use strict';
var zlib = require('zlib');
var gzip = zlib.createGzip();
var fs = require('fs');
var inp = fs.createReadStream('mytext.txt');
var out = fs.createWriteStream('mytext.txt.gz');
inp.pipe(gzip).pipe(out);
}());

Answer 3

Unfortunately Nodejs dosn't native support Rar compression/decompression, i frustated with this too so i created a module called "super-winrar" making super easy deal with rar files in nodejs :)
check it out: https://github.com/KiyotakaAyanokojiDev/super-winrar
Exemple creating a file "archive.rar" and appending "mytext.txt" file:
const Rar = require('super-winrar');
// create a rar constructor with file path! (created if not exists)
const rar = new Rar('archive.rar');
// handle erros, otherwise will throw an exception!
rar.on('error', err => console.log(err.message));
rar.once('ready', async () => {
await rar.append(['mytext.txt']);
});