Nodejs Backend Patterns

Solid patterns for building Node.js backends that don't fall apart in production. Covers the essentials like proper layered architecture with controllers, services, and repositories, plus error handling middleware that actually catches things. Shows both Express and Fastify setups with TypeScript, authentication flows, and database integration patterns. The code examples are practical, not toy demos. You'll get structured approaches for REST APIs, input validation, password hashing, and SQL query organization. Good reference when you're past the tutorial phase but need proven patterns for real applications that handle traffic and don't leak memory.