Back-End APIs Scalable Architecture Patterns

Back-End APIs Scalable Architecture Patterns Building scalable back-end APIs means designing for growth from day one. When traffic rises, you don’t want to rewrite the system. The core idea is to keep services small, stateless, and easy to replace. This guide shows practical patterns you can apply today. Stateless design and horizontal scaling A stateless service handles each request independently. It makes auto-scaling simple and predictable. Use JWTs or tokens for auth, and store user data in external stores like caches or databases. A load balancer can spread requests across healthy instances, and you can add more instances as load grows. Keep sessions outside the process, and idempotent operations to prevent duplicates. ...

September 21, 2025 · 2 min · 424 words