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backend-patterns

Implement scalable backend patterns for Node.js, Express, and Next.js APIs.

Updated Feb 5, 2026
Search Tags:#architecture#caching#backend#nodejs#auth#api-design#database-optimization
One-click install
npx skills add https://github.com/gugug168/claudecode-tutorial --skill backend-patterns-gugug168
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: backend-patterns
Source: https://github.com/gugug168/claudecode-tutorial/tree/main/everything-claude-code-learning/02-Skills/backend-patterns
Command: npx skills add https://github.com/gugug168/claudecode-tutorial --skill backend-patterns-gugug168

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Provide clear architecture patterns and practical techniques to design, implement, and operate scalable backend services, reduce bugs from inconsistent data access, and improve API performance and reliability.

Core Features & Use Cases

  • API Design & Routing: Resource-oriented REST patterns and recommendations for Node.js, Express, and Next.js API routes to make endpoints predictable and maintainable.
  • Layered Architecture: Repository, Service, and Controller separation to simplify testing and enable data-source switching.
  • Database & Performance: Techniques for query optimization, preventing N+1 queries, using transactions, and employing cache-aside patterns with Redis to improve latency.
  • Resilience & Safety: Centralized error handling, exponential backoff retries, rate limiting, structured logging, JWT authentication, and role-based access control for production-readiness.
  • Use Case: Implement a markets API that performs vector-enhanced search, fetches full records via a repository layer, caches hot reads, validates input, and enforces RBAC.

Quick Start

Create an Express API endpoint to list markets with pagination using a Repository layer, add Redis cache-aside for reads, validate input, and require JWT authentication.

Frequently Asked Questions about backend-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I structure a Node.js Express API using repository-service-controller architecture?▼

Repository-service-controller architecture separates data access, business logic, and routing to simplify testing and enable data-source switching in Node.js Express APIs. This layered pattern makes endpoints predictable and maintainable.

What's the best way to prevent N+1 query problems in backend API endpoints?▼

Preventing N+1 query problems requires query optimization techniques applied within a repository abstraction layer to batch data fetching. This reduces redundant database access and improves overall API latency for related data records.

How does Redis cache-aside pattern work for backend API performance optimization?▼

Redis cache-aside pattern improves API latency by checking the cache before fetching from the database and writing results back to Redis. This technique optimizes hot reads while maintaining data consistency through the repository layer.

Can I implement JWT authentication and RBAC in Next.js API routes?▼

JWT authentication and role-based access control can be implemented in Next.js API routes to enforce production-readiness and security. These patterns validate user identity and restrict endpoint access based on assigned user roles.

How do I handle transactional operations and exponential backoff retries in a backend service?▼

Transactional operations ensure data consistency, while exponential backoff retries provide resilience against transient failures in backend services. Centralized error handling coordinates these strategies to maintain reliable API operations.

When do I need rate limiting and structured logging for scalable backend systems?▼

Rate limiting and structured logging are needed when building scalable backend systems to prevent API abuse and capture diagnostic information. These resilience patterns ensure production-readiness under high traffic and operational visibility.

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