Backend Patterns

A solid reference for structuring Node.js and Next.js backends with patterns you'll actually use. It covers the repository and service layer separation, middleware chains for auth and validation, N+1 query prevention with batch fetching, and Redis caching strategies. The examples are TypeScript throughout, which keeps things type-safe when you're wiring up Supabase queries or building API routes. Especially useful when you're past the prototype stage and need to organize business logic away from your data access layer, or when you're debugging why your API is suddenly slow and realize you're running 50 database queries in a loop.

skills.sh installs: 7.2K
GitHub stars: 300.3K
last updated: Aug 21, 2026

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Install

$ npx -y skills add affaan-m/ecc --skill backend-patterns --agent claude-code

Installs into .claude/skills of the current project.

Files

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

// PASS: Resource-based URLs
GET    /api/markets                 # List resources
GET    /api/markets/:id             # Get single resource
POST   /api/markets                 # Create resource
PUT    /api/markets/:id             # Replace resource
PATCH  /api/markets/:id             # Update resource
DELETE /api/markets/:id             # Delete resource

// PASS: Query parameters for filtering, sorting, pagination
GET /api/markets?status=active&sort=volume&limit=20&offset=0