nodejs-backend-patterns

Structure a production-ready Node.js backend using layered architecture and dependency injection. This Skill provides patterns for Express and Fastify to ensure your API foundation is scalable, maintainable, and separates business logic from framework routing.

Implement authentication and validation middleware in Express using JSON Web Tokens and Zod schemas. This Skill demonstrates combining these dependencies to secure endpoints, validate incoming payloads, and handle authorization logic efficiently.

Fastify provides built-in performance optimizations compared to Express for building scalable REST APIs. This Skill covers framework-agnostic patterns while demonstrating specific Fastify plugins like @fastify/helmet and @fastify/cors for security and compression.

Yes, you can use dependency injection to connect both PostgreSQL and MongoDB in Node.js. This Skill details database integration strategies utilizing pg for SQL databases and mongoose for NoSQL, allowing flexible data layer management within a layered architecture.

Handle errors and rate limiting in a Node.js microservice using robust error handling mechanisms and rate-limit-redis. This Skill provides implementation patterns to centralize error responses and control API traffic using Redis-backed rate limiters.

You need Pino for structured logging and Helmet for securing HTTP headers to build a robust Node.js backend. This Skill incorporates these dependencies as essential middleware components to ensure your application meets production security and observability standards.