Kotlin and Microservices: Building Scalable Distributed Systems

The book "Kotlin and Microservices" is a comprehensive practical guide for developers who want to master building modern distributed systems in Kotlin. In the era of cloud technologies and high loads, microservice architecture has become the de facto standard, and Kotlin, with its conciseness and safety, is the ideal language for its implementation.

What is this book about?

The author consistently guides the reader from the basic concepts of microservices to building production-ready systems. You will learn:

• Fundamentals of Microservice Architecture: principles of separation, Domain-Driven Design (DDD), service interaction patterns.
• Working with Frameworks: an in-depth study of Ktor (asynchronous, lightweight) and Spring Boot (industry standard) for Kotlin.
• Network Interaction: RESTful API, gRPC, asynchronous messaging via Kafka and RabbitMQ.
• Data Management: working with PostgreSQL, MongoDB, Exposed ORM, and Spring Data.
• Infrastructure: containerization with Docker, Kubernetes orchestration, CI/CD pipelines.
• Reliability and Observability: Circuit Breaker, distributed tracing, logging, and metrics (Prometheus + Grafana).
• Testing: unit, integration, and end-to-end testing of microservices.

Who is this book for?

The publication will be useful for:

• Java/Kotlin developers who want to transition to microservice architecture;
• Backend engineers wishing to learn Ktor and Spring Boot for Kotlin;
• DevOps specialists interested in deploying Kotlin services;
• Students and graduates planning a career in developing high-load systems.

What will you gain after reading?

• The ability to design microservices from scratch following best practices;
• Skills in working with asynchronous programming and Kotlin coroutines;
• Experience integrating services via REST, gRPC, and message queues;
• An understanding of fault tolerance and scaling principles;
• Ready-made project templates and code examples that can be used in your work.

The book is written in a lively, accessible language, with numerous practical examples and step-by-step instructions. Each chapter concludes with exercises to reinforce the material. Regardless of your current level, "Kotlin and Microservices" will become a reliable assistant in mastering one of the most sought-after architectural paradigms.