socket.io examample 1

index.jade

script(src='/socket.io/socket.io.js')
script
  window.onload = function() {
    var socket = io.connect('/test');
    socket.on('connect', function() {
      console.log('connected'); 
      socket.send('test message');
    });

    socket.on('message', function(msg) {
      console.log('msg: ' + msg); 
    });
  };

server.js

var express = require('express')
  , io = require('socket.io');

var app = module.exports = express.createServer();

// Configuration

app.configure(function(){
  app.set('views', __dirname + '/views');
  app.set('view engine', 'jade');
  app.use(express.bodyParser());
  app.use(express.methodOverride());
  app.use(app.router);
  app.use(express.static(__dirname + '/public'));
});

app.configure('development', function(){
  app.use(express.errorHandler({ dumpExceptions: true, showStack: true })); 
});

app.configure('production', function(){
  app.use(express.errorHandler()); 
});

// Routes

app.get('/', function(req, res){
  res.render('index', {
    title: 'Express'
  });
});

app.listen(3000);

io = io.listen(app);

var broad = io
  .of('/test')
  .on('connection', function(socket) {
    socket.on('message', function(data) {
      console.log('received msg: ' + data);
      socket.broadcast.send(data);
    });
  });
console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);