node-simplerouter

var http = require('http');
var simplerouter = require('simplerouter');

var router = simplerouter({
    url: '/hello',
    action: function (req, res) {
        res.writeHead(200, {'Content-Type': 'text/plain'});
        res.end('Hello World\n');
    },
    method: 'GET' // optional
});

http.createServer(router).listen(1337, '127.0.0.1');