backend-patterns
Architectural patterns, API design, and database optimization for Node.js, Express, and Next.js backends.
- Covers repository, service, and middleware layers for clean separation of concerns; includes REST API structure with resource-based URLs and query parameters
- Database patterns include N+1 prevention, query optimization, transactions, and caching strategies (Redis, cache-aside)
- Error handling with centralized handlers, retry logic with exponential backoff, and structured logging for monitoring
- Authentication and authorization patterns: JWT validation, role-based access control, rate limiting, and background job queues
Backend Development Patterns
Backend architecture patterns and best practices for scalable server-side applications.
When to Activate
- Designing REST or GraphQL API endpoints
- Implementing repository, service, or controller layers
- Optimizing database queries (N+1, indexing, connection pooling)
- Adding caching (Redis, in-memory, HTTP cache headers)
- Setting up background jobs or async processing
- Structuring error handling and validation for APIs
- Building middleware (auth, logging, rate limiting)
API Design Patterns
RESTful API Structure
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