text: const winston = require('winston');
  const express = require('express');
  const app = express();
  
  require('./startup/logging')();
  require('./startup/routes')(app);
  require('./startup/db')();
  require('./startup/config')();
  require('./startup/validation')();
  require('./startup/prod')(app);
  
  const port = process.env.PORT || 3000;
  const server = app.listen(port, () =>
    winston.info(`Listening on port ${port}...`)
  );
  
  module.exports = server;
  