jszip

Creating a new zip file

This code creates a new zip file with a single file 'Hello.txt' containing the text 'Hello World' and saves it as 'example.zip'.

const JSZip = require('jszip');
const zip = new JSZip();
zip.file('Hello.txt', 'Hello World');
zip.generateAsync({type: 'nodebuffer'}).then(function(content) {
  require('fs').writeFileSync('example.zip', content);
});

Adding a folder and files

This code adds a folder named 'images' to the zip file and then adds a file 'smile.gif' with base64 encoded image data to this folder.

const JSZip = require('jszip');
const zip = new JSZip();
const imgFolder = zip.folder('images');
imgFolder.file('smile.gif', imgData, {base64: true});
zip.generateAsync({type: 'nodebuffer'}).then(function(content) {
  require('fs').writeFileSync('example.zip', content);
});

Reading a zip file

This code reads an existing zip file 'example.zip' and logs the names of all files contained within it.

const JSZip = require('jszip');
const fs = require('fs');
const zip = new JSZip();
fs.readFile('example.zip', function(err, data) {
  if (err) throw err;
  zip.loadAsync(data).then(function(contents) {
    Object.keys(contents.files).forEach(function(filename) {
      console.log(filename);
    });
  });
});

Extracting a file from a zip

This code extracts the content of the file 'Hello.txt' from the zip file 'example.zip' and logs it to the console.

const JSZip = require('jszip');
const fs = require('fs');
const zip = new JSZip();
fs.readFile('example.zip', function(err, data) {
  if (err) throw err;
  zip.loadAsync(data).then(function() {
    zip.file('Hello.txt').async('string').then(function(content) {
      console.log(content);
    });
  });
});