Experimentations in sinatra-style node.js

app.js

var util = require('util'),
    http = require('http'),
    router = require('./router');

console.log('creating server');
var app = http.createServer();

console.log('registering app');
router.registerApp(app);

console.log('loading controller');
var controller = require('./controller');

console.log('Server running at http://127.0.0.1:8124/');
app.listen(8124, "127.0.0.1");

controller.js

var router = require('./router');
var util = require('util');

router.get('/', function(params) {
  return '<form action="/booty" method="post">'+
          '<input type="text" name="snooty" value="Snooty 1">'+
          '<input type="text" name="snooty" value="Snooty 2">'+
          '<input type="text" name="snooty" value="Snooty 3">'+
          '<input type="text" name="snooty" value="Snooty 4">'+
          '<input type="text" name="snooty" value="Snooty 5">'+
          '<input type="text" name="snooty" value="Snooty 6">'+
          '<input type="text" name="snooty" value="Snooty 7">'+
          '<input type="text" name="snooty" value="Snooty 8">'+
          '<input type="submit" value="Go to Booty">'+
          '</form>';
});

router.post('/booty', function(params) {
  console.log(util.inspect(params));
  return 'Booty booty boot boot ' + params.snooty[0];
});

router.js

var querystring = require('querystring');

var routes = {
  'GET': {},
  'POST': {},
  'PUT': {},
  'DELETE': {}
};

function defineRoute (method, url, route) {
  routes[method][url] = route;
};

exports.invoke = function (req, res) {
  var route = routes[req.method][req.url];
  
  function writeResponse(req, res, code, body) {
    console.log(req.method + ' ' + req.url + ' (' + code + ')');
    res.writeHead(code, {'Content-Type': 'text/html'});
    res.write(body + '\n');
    res.end();
  }
  
  if (route) {
    var requestBody = '';
    
    req.on('data', function(chunk) {
      requestBody += chunk.toString();
    });
    
    req.on('end', function(){
      var params = querystring.parse(requestBody);
      var output = route(params);
      writeResponse(req, res, 200, output)
    });
  }
  else {
    writeResponse(req, res, 404, 'No route matches ' + req.url);
  }
};

exports.registerApp = function(app) {
  app.on('request', exports.invoke);
};

exports.get = function (url, route) {
  defineRoute('GET', url, route);
};

exports.post = function (url, route) {
  defineRoute('POST', url, route);
};

exports.put = function (url, route) {
  defineRoute('PUT', url, route);
};

exports.delete = function (url, route) {
  defineRoute('DELETE', url, route);
};