nodejs-backend-patterns

Layered architecture in a Node.js backend separates code into controllers, services, and repositories. This pattern isolates business logic from request handling and database access, ensuring maintainable production-ready code.

Implement middleware patterns in Express or Fastify by chaining functions for security, validation, and request processing. This approach centralizes cross-cutting concerns, reducing boilerplate and errors across REST APIs and microservices.

Yes, you can apply these backend patterns to GraphQL microservices. The design supports scalable API design, authentication, and database integration, making it suitable for both REST APIs and GraphQL backends.

Handle authentication and error handling in a Node.js API by applying built-in design patterns for secure authorization and centralized error processing. These patterns streamline validation and secure request processing across your services.

You need a DI-ready design to build scalable Node.js backends. The patterns implement a dependency injection-ready structure, allowing you to manage service dependencies efficiently and reduce boilerplate in production environments.