TypeScript and Microservices: A Practical Guide

The book "TypeScript and Microservices" is a practical guide for developers who want to master building modern distributed systems using TypeScript and Node.js. Unlike many textbooks, this book not only introduces the basics of TypeScript but immediately immerses the reader in the context of microservice architecture, where strict typing and the language's capabilities are most fully revealed.

What is this book about?

The author consistently guides the reader through the entire development cycle of a microservice application:

• Architecture design — how to break a monolith into microservices, choose context boundaries, and define interaction protocols (REST, gRPC, GraphQL).
• TypeScript setup — configuring tsconfig for a monorepo, working with decorators and advanced types (conditional types, mapped types).
• Creating services — from writing a simple HTTP server on Express to using the NestJS framework with its modular system and Dependency Injection.
• Working with data — integrating TypeORM and Prisma, migrations, repositories, and the Unit of Work pattern.
• Inter-service communication — message queues (RabbitMQ, Kafka), event-driven architecture, and sagas.
• Infrastructure and deployment — Docker, Docker Compose, Kubernetes, CI/CD, and monitoring.

Who is this book for?

The book is intended for developers already familiar with JavaScript or TypeScript at a basic level who want to move on to building industrial systems. It will be useful for:

• Backend developers who want to master microservice architecture.
• Fullstack engineers who want to deepen their understanding of server-side development in TypeScript.
• Team leads and architects looking for practical patterns for scaling projects.

What will you learn?

After reading the book, you will be able to:

• Design microservices that are easy to maintain and extend.
• Use TypeScript to write safe, self-documenting code.
• Implement fault tolerance and load balancing.
• Set up automated testing and deployment.

Each chapter contains practical examples and ready-to-run code that can be adapted to your own tasks. The book will become a desktop reference for everyone building modern backend systems in TypeScript.