app.js

//Address And Port

var address = 'localhost';
var port = 1945;
/**
 * Module dependencies.
 */

var express = require('express'),
    app     = express.createServer(),
    io      = require('socket.io').listen(app),
    ejs     = require('ejs');

var prev = 0;
var curr = 0;
// Configuration

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

io.configure(function() {
    io.set('log level', 1);
});


// sockets

var cli3nts = [];

io.of('/data').on('connection',function(socket) {
    socket.emit('hello',{ id: cli3nts.length});
    socket.on('received',function(data){
        cli3nts[data.id]= data.cValue;
        socket.emit('send',cli3nts);
       
    });
});

// Routes

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


app.listen(port);
console.log("Express server listening on port %d in %s mode", app.address().port, app.settings.env);