Glossary term
What is API gateway? Meaning for developers
Front door for APIs: auth, rate limits, routing. Example: /orders → order service, /users → user service.
Learn it properly · System DesignLesson 13: Reverse Proxy vs API GatewayReverse proxy, load balancer and API gateway get used interchangeably — NGINX is called all three. What each one is actually for, where authentication and rate limiting belong, the Backend-for-Frontend pattern, and when a gateway is overkill.