How to unzip file with Node.js

Question

I need to zip and unzip file with Node.js but I have a problem.

const fs = require("fs");
const zlib = require('zlib');



function UnZip(zip, paths) {

  var inp = fs.createReadStream("f:/test.zip");

  var Exzip = zlib.createUnzip();

  inp.pipe(Exzip).pipe("f:/");

}

Error:

TypeError: dest.on is not a function

check this question, it may help you https://stackoverflow.com/questions/10308110/simplest-way-to-download-and-unzip-files-in-node-js-cross-platform — Monir alhussini, Sep 11 '19 at 05:10
zlib does not zip the file, it converts into qzip format. So if you want zip format, you can use archiver library. — Nayan Patel, Sep 11 '19 at 05:16
`.pipe("f:/")` is most likely the error: it needs to be a function (or a stream) instead you supplied a string. — customcommander, Sep 11 '19 at 05:43

Nayan Patel · Answer 1 · 2019-09-11T06:05:13.773

0

Zipping the file

const archiver = require('archiver'),
    archive  = archiver('zip'),
      fs       = require('fs'),
    output = fs.createWriteStream( 'mocks.zip');

archive.pipe(output);

// temp.txt file must be available in your folder where you 
// are writting the code or you can give the whole path

const file_buffer = fs.readFileSync('temp.txt')


archive.append(file_buffer, { name: 'tttt.txt'});


archive.finalize().then((err, bytes) => {
  if (err) {
    throw err;
  }
  console.log(err + bytes + ' total bytes');
});

unzipping a file

const unzip = require('unzip'),
      fs = require('fs');

fs.createReadStream('temp1.zip').pipe(unzip.Extract({ path: 'path' }))

edited Sep 11 '19 at 06:05

answered Sep 11 '19 at 05:13

Nayan Patel

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tnx bro ... But me need to UnCompress .zip File – Mahdi_Ush Sep 11 '19 at 05:20
bro please only use this => const zlib = require('zlib'); – Mahdi_Ush Sep 11 '19 at 08:05
zlib library does not support zip format, you can gzip using zlib – Nayan Patel Sep 11 '19 at 08:30

score 0 · Answer 2 · answered Sep 11 '19 at 05:45

Here is how you can do it with zlib module.

const fs = require('fs');
const zlib = require('zlib');

const fileContents = fs.createReadStream('file1.txt.gz');
const writeStream = fs.createWriteStream('file1.txt');
const unzip = zlib.createGunzip();

fileContents.pipe(unzip).pipe(writeStream);

How to unzip file with Node.js

2 Answers2