router-line の Hello world 的コード

router-line-helloworld.js

var Router = require('router-line').Router,
    http = require('http'),
    url = require('uri');

var router = new Router();

router.add('GET', '/hello', function(req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
});

http.createServer(function(req, res) {
  var uri = url.parse(req.url);

  var route = router.route(req.method, uri.pathname);
  if (route) {
    route.value(req, res);
  } else {
    res.writeHead(404, {'Content-Type': 'text/plain'});
    res.end('404 Not Found');
  }
}).listen(3000);