nodejs-backend-patterns

A production-ready Node.js backend uses a standard middleware stack for request processing, implements error handling, integrates authentication, and organizes architecture for scalable REST or GraphQL services. Express and Fastify both support these middleware patterns for robust API design.

Middleware patterns for Node.js API security and instrumentation handle request processing, apply security headers, and log request metrics. Express and Fastify use these middleware layers to intercept HTTP requests before they reach your core API design and business logic.

Yes, this backend approach works for both REST APIs and GraphQL microservices. The Node.js patterns support scalable backend service architectures using Express or Fastify, allowing you to apply the same middleware, authentication, and error handling logic across different API designs.

You can use Fastify instead of Express for Node.js authentication and database integration. Both frameworks support the middleware patterns and architectural organization needed to implement authentication, connect databases, and build deployment-ready backend services.

The best way to handle errors in Node.js backend services is implementing standardized error handling middleware within your Express or Fastify stack. This pattern captures exceptions across REST and GraphQL endpoints, ensuring robust API design and consistent error responses.