Node.js server basic

server.js

// Run with node server.js
var cfg = {
  http: {
    port: 3333,
    host: '127.0.0.1'
  }
}
var http = require('http');

http.createServer(function(req, res) {
  res.writeHead(200, {'Content-type': 'text/plain'});
  res.end('Hello World!\n');
}).listen(cfg.http.port, cfg.http.host);

console.log('Server up on', cfg.http.host, cfg.http.port);