Rust API Development: A Practical Guide

The book "Rust API Development" is a practical guide that will take you through all stages of creating modern web APIs in the Rust language. You will learn to design, implement, and deploy high-load and secure services using best practices and popular ecosystem libraries.

What is this book about?

The book covers the full stack of API development in Rust. Starting with the basics of asynchronous programming and project setup, you will progressively move on to creating real web applications. Special attention is paid to performance and security — key advantages of Rust.

• Asynchronous Rust basics: Tokio, async/await, multithreading, and state management.
• API frameworks: Actix-web, Axum, Rocket — selection, configuration, and comparison.
• Working with databases: SQL (SQLx, Diesel) and NoSQL (MongoDB) — schema design, migrations, connection pools.
• Authentication and authorization: JWT, OAuth2, API keys, CSRF and XSS protection.
• Testing and documentation: unit tests, integration tests, OpenAPI/Swagger.
• Deployment: Docker, Kubernetes, CI/CD, monitoring (Prometheus, Grafana).
• Advanced topics: WebSockets, gRPC, GraphQL (async-graphql), microservice architecture.

Who is this book for?

The book will be useful both for beginner Rust developers already familiar with the basics of the language, and for experienced engineers who want to master API creation. If you are transitioning from other languages (Python, Go, Java) — the book will help you quickly integrate into the Rust ecosystem. It is also suitable for system programmers interested in web development.

What will you learn?

• How to design RESTful and GraphQL APIs considering idempotency, pagination, and versioning.
• How to handle errors and return clear HTTP responses to clients.
• How to write secure code resistant to attacks (injections, DoS, unsafe deserialization).
• How to optimize performance: caching, connection pools, profiling.
• How to integrate APIs with external services via message queues (RabbitMQ, Kafka).
• How to automate testing and deployment using GitHub Actions.

In each chapter, you will find practical examples, ready-made code, and exercises to reinforce the material. By the end of the book, you will be able to independently develop and launch a high-load API service into production, capable of handling thousands of requests per second with minimal memory consumption.

"Rust API Development" is not just a reference guide, but a roadmap from beginner to professional in the world of safe and fast web programming.