text: const express = require('express');
  const app = express();
  
  app.get('/', (req, res) => {
      res.json({
          name: "Carlos",
          lastname: "Sánchez",
          username: "carlosvldz",
          gender: "M",
          country: "Mexico"
      })
  });
  
  const server = app.listen(3000, function(){
      console.log(`Listening on http://localhost:${server.address().port}`);
  });