text: const env = process.env.NODE_ENV || 'development';
  
  const config = require('./config/config')[env];
  require('./config/database')(config);
  const app = require('express')();
  require('./config/express')(app);
  require('./config/routes')(app);
  require('./config/passport')();
  app.listen(config.port, () => {
      console.log(`Listening on port ${config.port}...`);
  });