nodejs-backend-patterns

Structure a Node.js backend using a layered architecture and dependency injection. This approach separates business logic from routing, improving maintainability and testability for production-ready Express or Fastify services.

Implement authentication and rate limiting in Express by configuring middleware. This pattern intercepts incoming requests to verify user identity and control traffic, ensuring secure API response formatting.

Manage database transactions in a Node.js API by applying transaction management patterns. These patterns ensure data integrity across SQL and NoSQL databases like PostgreSQL and MongoDB during complex operations.

Yes, you can use the same backend patterns for Fastify and Express. The Skill provides framework-agnostic architectural guidance, covering middleware integration and database patterns applicable to both.

Format API responses and handle errors in Node.js by implementing standardized response formatting and robust error handling middleware. This ensures consistent API outputs and secure error logging.