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Phase 1 · Internet & Backend Basics

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API Gateways

Part of the Backend Developer Roadmap.

Summary

A single entry point that sits in front of one or more backend services, handling routing, authentication, rate limiting and logging before requests reach your actual application code.

How to Learn This

  • 1Read how an API gateway differs from a simple reverse proxy.
  • 2Learn common gateway responsibilities: auth, rate limiting, request routing, logging.
  • 3Explore a managed gateway (AWS API Gateway, Kong) to see what it configures out of the box.

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