Simple Node.js Express app that renders every file in the /public directory.

app.js

// Install express with: npm install express.

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

// Before any request console.log all requests.
app.use(function(req, res, next){
  console.log('Intercepted request from: ' + req.url);
  next();
});

// Serve static files from public direcory.
app.use(express.static(__dirname + '/public'));

// 404 Page not found.
app.use(function(req, res, next){
  res.send('Error 404. Page not found', 404);
});

app.listen(process.env.PORT || 4000);