WebSocket sample application simulating WhatsApp QRCode authentication with Node.js, Bower and Grunt.
Clone this repository and run these commands:
$ bower install $ npm install $ grunt $ node app.js
Open http://localhost:9000, take a picture of the QRCode and see (the magic) the following message changing from "Waiting for mobile phone..." to "Received a smartphone call!". Use the QRCode Android/iOS app for that.
Try to use your browser dev tools plugin to see log messages on the console.