gistfile1.js

var http = require('http'),
    router = new require('routes').Router();

// route response function
var test = function(req, res, params, splats) {
    // everything is undefined here... wtf?
    console.log(req); 
    console.log(res); 
    console.log(params); 
    console.log(splats); 
};

// routes
router.addRoute("/test/:name?", test);

// server
http.createServer(function(req, res) {
    // matching a route
    var route = router.match(req.url);

    // if one is matched, executing the reponse function
    if (route) {
        route.fn.apply(req, res, route.params, route.splats);
    }

    res.writeHead(200, { 'Content-Type': 'text/plain' });
    res.end('Hello World\n');

}).listen(3000, '127.0.0.1');

console.log('Server running at http://127.0.0.1:3000/');