backend/src/config/config.ts

export const configuration = () => {
  return {
    // db config
    'db.host': process.env.DB_HOST,
    'db.port': process.env.DB_PORT,
    'db.user_name': process.env.DB_USER,
    'db.password': process.env.DB_PASSWORD,
    'db.name': process.env.DB_NAME,
    'db.slow_limit': Number(process.env.DB_SLOW_LIMIT) || 500, // ms
    'db.ssl_enabled': process.env.DB_SSL_ENABLED,
    // payment config
    'vnp_TmnCode': process.env.VNP_TMNCODE,
    'vnp_HashSecret': process.env.VNP_HASHSECRET,
    'vnp_Url': process.env.VNP_URL,
    'vnp_ReturnUrl': process.env.VNP_RETURNURL,
  };
};