C++ and Microservices: From Monolith to Distributed Architecture

Modern development requires flexibility, scalability, and fault tolerance. The book "C++ and Microservices" is a bridge between classic C++ and the world of distributed systems. You will learn how to transform a monolithic application into a set of loosely coupled, autonomous services without losing the performance for which C++ is valued.

The book starts with the basics: why C++ is an excellent choice for microservices (low latency, memory control, asynchronous support). Then you will dive into practice — from setting up gRPC and REST API to deployment in Docker and Kubernetes. Special attention is given to inter-service communication, state management, and error handling.

What you will learn:

• How to design microservices with Domain-Driven Design (DDD) in mind.
• Principles of working with gRPC, Protobuf, and RESTful API in C++.
• Organizing asynchronous I/O using Boost.Asio and C++20 coroutines.
• Fault tolerance patterns: Circuit Breaker, Retry, Timeout, Bulkhead.
• Integration with message queues (RabbitMQ, Kafka) and databases (PostgreSQL, Redis).
• Containerization, orchestration, and monitoring of microservices.
• Testing distributed systems: unit, integration, and chaos engineering.

Who this book is for:

• C++ developers looking to go beyond desktop or embedded systems.
• Software architects seeking high-performance solutions for distributed systems.
• DevOps engineers working on high-load projects in C++.
• Students and teachers studying modern development approaches.

Each chapter contains practical, ready-to-run examples and links to a code repository. You will learn not only how to write microservices but also how to properly deploy, scale, and maintain them. The book is written in a lively style, without excessive academicism, but with deep technical immersion.

"C++ and Microservices" is your guide to the world where C++ meets cloud technologies. After reading it, you will be able to confidently design systems that withstand millions of requests per second and feel at home in any microservice architecture.