var express = require('express'); var sockjs = require('sockjs'); // 1. Echo sockjs server var sockjs_opts = {sockjs_url: "http://cdn.jsdelivr.net/sockjs/1.0.1/sockjs.min.js"}; var sockjs_echo = sockjs.createServer(sockjs_opts); sockjs_echo.on('connection', function(conn) { conn.on('data', function(message) { conn.write(message); }); }); // 2. Express server var app = express.createServer(); sockjs_echo.installHandlers(app, {prefix:'/echo'}); console.log(' [*] Listening on 0.0.0.0:9999' ); app.listen(9999, '0.0.0.0'); app.get('/', function (req, res) { res.sendfile(__dirname + '/index.html'); });