nodejs-backend-patterns

Structure a scalable Node.js backend by applying a layered architecture that separates controllers, services, repositories, and middleware. This ensures maintainable code organization as your REST or GraphQL API grows and handles complex routing logic.

Implement JWT authentication in Node.js by building login and refresh token flows paired with role-based authorization middleware. This secures operational endpoints by validating user identities and restricting access based on assigned permissions.

Handle global API errors and async exceptions by implementing centralized error handling middleware and async error wrapping. This pattern catches runtime failures across your Node.js backend and returns consistent API response formats.

Yes, these Node.js backend patterns support database integration for both SQL and NoSQL systems. You can utilize PostgreSQL connection pools, MongoDB via Mongoose, and apply transaction patterns for secure multi-step database writes.

Production Node.js REST APIs require rate limiting, CORS configuration, security headers, compression, and structured logging. Adding graceful shutdown and input validation ensures reliable operational behavior and consistent API responses under load.