NodeJS Timing Out

I have a node js server using express and socket.io.  I found a function I would love to try but not sure how to write the code. The code below is written using http.createServer, but since I'm using express, it's not the same format and I don't know how to write this???

How I create the server....
var express = require('/usr/lib/node_modules/express');
var app = express();
var server = require('http').Server(app);

The functionality I would like to duplicate....
http.createServer(function (req, res) {
     res.socket.setTimeout(10);
     res.socket.removeAllListeners('timeout');
     res.socket.once('timeout', function () {
     res.writeHead(200, {'Content-Type': 'text/plain'});
     res.end('Hello World\n');
  });
}).listen(8888);

Any help would be appreciated!