node package manager


use HTML5 web workers with the node stream API


npm install workerstream

use HTML5 web workers with the node streams API

var workerstream = require('workerstream')
var worker = workerstream('my-worker.js')

worker is a stream and speaks stream events: data, error and end. that means you can pipe worker output to anything that accepts streams, such as an XHR. you can also pipe data into workers (such as a webcam feed or audio data)


in your app:

var worker = workerstream('worker.js')
worker.on('data', function(data) {
worker.on('error', function(e) { console.log('err', e)})
worker.write({ hello: 'world' })

the worker code (worker.js above):

self.onmessage = function(event) {
  self.postMessage({whats: 'up'})

you can also pass in existing webworker instances

using with webworkify

webworkify allows you to simply create browserified webworkers.

var WebWorkify = require('webworkify')
var WorkerStream = require('workerstream')
var worker = WebWorkify(require('./worker.js'))
var workerStream = WorkerStream(worker)

Your worker.js can use this module's ParentStream to create a stream connecting back to the parent

var ParentStream = require('workerstream/parent')
module.exports = function(){
  var parentStream = ParentStream()

transferable objects

worker.write(arraybuffer, [arraybuffer])