API Development in Rust: Building High-Performance Web Services

The book "API Development in Rust" is a practical guide that will take you through all stages of building modern web APIs using the Rust language. Unlike many other languages, Rust offers a unique combination of C++ performance and memory safety, making it an ideal choice for high-load server applications.

What this book is about

We start with the basics: installing tools, setting up a project, and getting to know the Rust ecosystem. Then we dive into key topics:

• Frameworks and routing: a detailed breakdown of Actix-web, Rocket, and warp. Choosing the right tool for your task.
• Asynchronous programming: working with Tokio, async/await, timers, and channels. How to write non-blocking code.
• Serialization and deserialization: using Serde for JSON, Protobuf, and MessagePack. Validating incoming data.
• Databases: integration with SQL (SQLx, Diesel) and NoSQL (MongoDB, Redis). Connection pools, migrations, transactions.
• Authentication and authorization: JWT, OAuth2, sessions. Secure password storage.
• Testing: unit, integration, and load tests. Using mocks and fixtures.
• Deployment: building Docker images, CI/CD pipelines, monitoring (Prometheus + Grafana), logging.

Who this book is for

The book is intended for developers who are already familiar with the basics of Rust (variables, functions, structs) and want to move on to building real web applications. You will learn:

• How to design RESTful and GraphQL API architecture.
• How to handle errors and return clear client-facing messages.
• How to optimize performance and use multithreading.
• How to create middleware for logging, compression, and CORS.
• How to integrate external services via HTTP clients (reqwest).

What you will get

After reading, you will be able to independently develop and deploy a production-ready API service in Rust. Each chapter contains practical examples, ready-to-use code snippets, and exercises to reinforce the material. At the end of the book, you will find a step-by-step guide to building a task management microservice (Todo API) from scratch to deployment on a cloud platform.

This book will become your reliable companion in the world of high-performance web technologies in Rust.