api-gateway-design

What problem does it solve?

API gateway design consolidates exposure of multiple microservices behind a single entry point, providing consistent routing, security, and observability to reduce integration complexity and runtime costs.

Core Features & Use Cases

• Routing and request aggregation to minimize client round-trips.
• Security and resilience through JWT-forwarding, rate limiting, and circuit breakers.
• Observability and governance with correlation IDs, logging, and versioned APIs.
• Use Case: When you have multiple services (users, orders, catalog) you deploy a gateway to present a unified API surface and enforce cross-cutting policies.

Quick Start

Install and run a lightweight Express gateway and wire up downstream services, then configure authentication, rate limits, and proxies to expose a single entry point.