nodejs-backend-patterns

Structure scalable Node.js backends using layered architecture with controllers, services, and repositories. This pattern separates routing logic from business rules and data access, making Express and Fastify applications easier to maintain and test as they grow.

Handle authentication and errors in a Node.js REST API using middleware-driven architecture. Applying dedicated authentication middleware and centralized error handling patterns ensures secure, robust request processing across your Express or Fastify services.

Yes, you can use TypeScript and dependency injection in Fastify or Express microservices. The pattern supports structured layering with DI where applicable, ensuring type-safe, production-grade API gateways and scalable backend services.

Configure rate limiting and input validation for Node.js API gateways through dedicated middleware. Applying these patterns within Express or Fastify ecosystems protects endpoints from abuse and ensures incoming data meets security requirements.

Yes, this Node.js backend pattern fully supports GraphQL and database integration. It provides architectural guidance for wiring data access layers and designing APIs across REST, GraphQL, and microservices architectures in production environments.