text: const express = require('express');
  
  var app = express()
  
  app.get('/', (req, res) => {
    console.log(`${req.method} -  ${req.url}`);
    res.send('<h1>Hello Express !</h1>')
  })
  
  app.listen(3000, () => {
    console.log(`Server is listen on port 3000`);
  })
  
  module.exports.app = app