Rust and Microservices: Building Fault-Tolerant Distributed Systems

The book "Rust and Microservices" is a practical guide to building modern, fault-tolerant, and high-performance distributed systems in Rust. Unlike traditional approaches in Java or Go, Rust offers a unique combination of C/C++ speed and memory safety, making it an ideal choice for mission-critical microservices.

What is this book about?

The author systematically guides the reader from the fundamentals of microservice architecture to deploying a complete solution in production. You will learn:

• Microservice Architecture: principles of separation, communication patterns (synchronous and asynchronous), state management, and transactions.
• Asynchronous Rust: a deep dive into Tokio and async/await, creating efficient, non-blocking request handlers.
• Web Frameworks: working with Actix-web and Axum — from simple REST APIs to complex WebSocket connections.
• Inter-service Communication: implementing gRPC and protobuf, configuring message queues (RabbitMQ, Kafka) in Rust.
• Database Operations: SQL via sqlx and Diesel, NoSQL (MongoDB, Redis) — connection patterns and connection pools.
• Security and Reliability: error handling, Graceful Shutdown, retries, circuit breaker, observability (metrics, tracing, logs).
• Testing: unit tests, integration tests with Testcontainers, load testing, and benchmarks.
• Deployment: Docker containerization, Kubernetes, CI/CD pipelines, health checks, and update strategies.

Who is this book for?

The book is intended for developers who are already familiar with the basics of Rust (syntax, ownership, lifetimes) and want to move on to building industrial-grade distributed systems. You will get not just code examples, but a complete understanding of "why it works this way."

What will you learn?

• How to design a microservice that won't fail under peak load.
• How to effectively use Rust's asynchrony without data races.
• How to integrate services via gRPC and REST, choosing the optimal protocol.
• How to set up monitoring and alerting for a distributed system.
• How to automate testing and deployment with minimal downtime.

Each chapter contains real-world projects and exercises. By the end of the book, you will be able to independently develop and deploy a microservice application in Rust, ready for high loads.

Ideal for backend developers, software architects, and DevOps engineers who want to use Rust to build reliable distributed systems.