text: const env = process.env.NODE_ENV || 'development';
  console.log(`NODE_ENV: ${env}`);
  
  if(env === 'development' || env === 'test') {
    const config = require('./config.json');
    const envConfig = config[env];
  
    Object.keys(envConfig).forEach((key) => {
      process.env[key] = envConfig[key];
    });
  }
  