Building an API Gateway in Rust

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Part 6 - Configuration & Authentication

In the final part of this series, we move our gateway configuration into a YAML file and implement JWT-based authentication middleware to protect our backend services.

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Part 5 - Load Balancing & Health Checks

In this tutorial, we add load balancing to our API gateway with round-robin distribution and background health checks that automatically remove unhealthy backends from the pool.

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Part 4 - Rate Limiting

In this tutorial, we implement a token bucket rate limiter as middleware for our API gateway, protecting backend services from abuse by tracking requests per client IP.

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Part 3 - Middleware Pipeline

In this tutorial, we build a composable middleware system using Rust traits. We implement logging, CORS, and custom header injection middleware for our API gateway.

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Part 2 - Routing & Path Matching

In the second part of this series, we add a routing layer to our API gateway so it can forward requests to different backend services based on URL path patterns.

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Part 1 - Project Setup & Your First HTTP Proxy

In the first part of this series, we set up our Rust project, learn the basics of async programming with Tokio, and build a working reverse proxy that forwards HTTP requests to a backend server.