nodejs-backend-patterns

Production-ready Node.js backend patterns with Express/Fastify, middleware, authentication, and database integration. Comprehensive guidance for building scalable, maintainable, and production-ready Node.js backend applications with modern frameworks, architectural patterns, and best practices. Basic Setup: Basic Setup: Structure: Controller Layer: Service Layer: Repository Layer: Use a DI container to wire up repositories, services, and controllers. For a full container implementation, see references/advanced-patterns.md . Node.js supports both SQL and NoSQL databases. Use connection pooling for all production databases. Key patterns covered in references/advanced-patterns.md : JWT-based auth with access tokens (short-lived, 15m) and refresh tokens (7d). Full AuthService implementation with bcrypt password comparison in references/advanced-patterns.md .