gistfile1.js

var connect = require("connect"),
    director = require("director"),
    union = require("union");

var router = new director.http.Router();
router.get('/', function () {
  this.res.writeHead(200, { 'Content-Type': 'text/plain' })
  this.res.end('Hello, World!\n');
});

var sidewalk = union.createServer({
  buffer: false,
  before: [
    connect.favicon(),
    connect.logger('dev'),
    function (req, res) {
      router.dispatch(req, res, function (err) {
        if (err) {
          res.writeHead(404);
          res.end();
        }
      })
    }
  ],
  after: []
}).listen(3000);