Siva

server.js

var fs = require('fs');
var https = require('https');
var express = require('express');

var app = express();
var options = {
  key: fs.readFileSync('./file.pem'),
  cert: fs.readFileSync('./file.crt')
};
var serverPort = 443;

var server = https.createServer(options, app);
var io = require('socket.io')(server);

// Configure express such as public directories

io.on('connection', function(socket) {
  // Do something with the connection
});

server.listen(serverPort, function() {
  console.log('server up and running on port %s', serverPort);
});