var http = require('http'),
    express = require('express');

function root(req, res) {
   res.end("hello");
}

var app = express();
app.set('port', process.env.PORT || 3000);

app.get('/', root);

var server = http.createServer(app);
server.listen(app.get('port'), function() {
   console.log('Express server listening on port ' + app.get('port'));
});