Rendr + Socket.io base Express file

index.js

var express = require('express')
  , http = require('http')
  , rendr = require('rendr')
  , config = require('config')
  , lampAPI = require('./api/index')
  , io = require('socket.io')
  , ioServer
  , webSocket
  , connectedUsers = {}
  , app = express();

/**
 * Initialize Express middleware stack.
 */
app.use(express.compress());
app.use(express.static(__dirname + '/public'));
app.use(express.logger());
app.use(express.bodyParser());

/**
 * Initialize our Rendr server.
 */
var rendrApp = rendr.createServer({
  dataAdapterConfig: config.api,
  appData: config.appData
});
ioServer = http.createServer(app);

/**
  * To mount Rendr, which owns its own Express instance for better encapsulation,
  * simply add `server` as a middleware onto your Express app.
  * This will add all of the routes defined in your `app/routes.js`.
  * If you want to mount your Rendr app onto a path, you can do something like:
  *
  *     app.use('/my_cool_app', server);
  */
app.use('/api/v1', lampAPI());
app.use(rendrApp);

/**
 * Start the Express server.
 */
function start(){
  var port = process.env.PORT || config.server.port;
  //app.listen(port);
  webSocket = io.listen(ioServer);
  ioServer.listen(port);

  webSocket.sockets.on('connection', function (socket) {
    console.log('connected client');
  });

  console.log("server pid %s listening on port %s in %s mode",
    process.pid,
    port,
    app.get('env')
  );
}


/**
 * Only start server if this script is executed, not if it's require()'d.
 * This makes it easier to run integration tests on ephemeral ports.
 */
if (require.main === module) {
  start();
}

exports.app = app;