nodejs-backend-patterns

Structure a production-ready Node.js backend using layered architecture like Controller-Service-Repository. This pattern separates business logic from data access, enabling dependency injection for highly testable code and ensuring long-term maintainability.

Implement validation and authentication middleware in Express or Fastify using pre-configured patterns. This includes JSON Web Tokens (JWT) for authentication and Zod for request validation to secure API endpoints efficiently.

Handle errors and improve performance in a Node.js API through structured error handling and caching strategies. Combining global error handlers with database connection pooling ensures robust, high-performance backend operations.

Yes, you can use Redis for rate limiting in a TypeScript backend. This Skill provides pre-configured middleware patterns that leverage Redis to manage rate limiting, alongside structured logging with Pino for monitoring traffic.

Use dependency injection in a Node.js microservice when building new REST APIs or user management modules. It standardizes development by decoupling components, which simplifies unit testing and ensures architectural consistency.