message: refactor(example): simplified server bootsraping
diff: import * as http from 'http';
  import { app } from './app';
  -const createServer = app => {
  const HOSTNAME = '127.0.0.1';
  const PORT = 1337;
  @@ -14,6 +13,3 @@ const createServer = app => {
  httpServer.on('close', () => {
  console.log(`Connection closed`);
  });
  -};
  -
  -createServer(app);
  