Node.js Backend Patterns

Production-ready Node.js backend patterns with Express/Fastify, middleware, authentication, and database integration.

- Covers layered architecture (controllers, services, repositories), dependency injection, and microservices design with TypeScript

- Includes middleware patterns for authentication, validation, rate limiting, and request logging with practical examples

- Provides custom error handling, global error handlers, and async error wrappers for robust error management

- Supports PostgreSQL (connection pooling, transactions) and MongoDB (Mongoose) with caching strategies using Redis

- Demonstrates JWT authentication, refresh tokens, API response formatting, and best practices for production deployments

Node.js Backend Patterns

Comprehensive guidance for building scalable, maintainable, and production-ready Node.js backend applications with modern frameworks, architectural patterns, and best practices.

When to Use This Skill

- Building REST APIs or GraphQL servers

- Creating microservices with Node.js

- Implementing authentication and authorization

- Designing scalable backend architectures

- Setting up middleware and error handling

- Integrating databases (SQL and NoSQL)

- Building real-time applications with WebSockets

- Implementing background job processing

Detailed patterns and worked examples

Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.