Create ZIP file in memory using any node module

Question

Is there any node module to create zip in memory?(I don't want to save zip file on disk) so that we can send this created zip file to other server(From memory). What is the best way to do this? Here is my example:

var file_system = require('fs');
var archiver = require('archiver');
var dirToCompress = 'directoryToZIP';

module.exports = function (req, res, next) {
var archive = archiver.create('zip', {});
archive.on('error', function (err) {
    throw err;
});

    var output = file_system.createWriteStream('/testDir/myZip.zip',{flags:'a'});//I don't want this line
    output.on('close', function () {
        console.log(archive.pointer() + ' total bytes');
        console.log('archiver has been finalized and the output file descriptor has closed.');
    });

    archive.pipe(output);

    archive.directory(dirToCompress);

    archive.finalize();

};

Answer 1

I'm using Adm-Zip:

// create archive
var zip = new AdmZip();

// add in-memory file
var content = "inner content of the file";
zip.addFile("test.txt", Buffer.alloc(content.length, content), "entry comment goes here");

// add file
zip.addLocalFile("/home/me/some_picture.png");

// get in-memory zip
var willSendthis = zip.toBuffer();