nodejs-backend-skill

Build production-ready Node.js backend services using Express or Fastify by applying middleware patterns, layered architecture with controllers, services, and repositories, and robust error handling to ensure scalable API design.

JWT authentication in a Node.js REST API secures endpoints by validating tokens within middleware, enabling stateless authorization and secure API design across standalone services or microservices architectures.

Yes, you can integrate PostgreSQL for persistent data storage and Redis for caching within Node.js microservices, utilizing robust patterns to streamline data access and improve backend service performance.

The best way to structure Node.js backends outside the Next.js App Router is using a layered architecture with middleware-driven controllers, services, and repositories to support standalone REST APIs and microservices effectively.

Both Express and Fastify support scalable architecture and middleware patterns for Node.js API design; Fastify often provides higher performance, while Express offers a mature ecosystem for backend service development.

A Node.js backend needs layered architecture and middleware patterns to separate concerns across controllers, services, and repositories, reducing boilerplate and ensuring robust error handling for production-ready services.