TypeScript and Microservices: A Practical Guide

The book "TypeScript and Microservices" is a comprehensive guide for developers who want to master building distributed systems in TypeScript. Unlike many superficial tutorials, this book offers a systematic approach: from architecture design to production deployment and monitoring.

Who is this book for?

• Backend developers familiar with JavaScript/TypeScript who want to transition to a microservices architecture
• Fullstack programmers who want to understand how to build scalable server-side applications
• DevOps engineers interested in modern practices for deploying TypeScript services
• Students and graduates of courses seeking practical skills in production development

What will you learn?

• Principles of microservices design: context boundaries, strategies for monolith decomposition
• Setting up a TypeScript project for microservices development (strict typing, decorators, DTO)
• Working with popular frameworks: NestJS, Express, Fastify — and choosing the right one
• Organizing inter-service communication: REST, gRPC, GraphQL, message queues (RabbitMQ, Kafka)
• Resilience patterns: Circuit Breaker, Retry, Timeout, Saga for distributed transactions
• Testing microservices: unit, integration, contract, and end-to-end tests with Jest and Supertest
• Containerization with Docker and orchestration with Kubernetes (Helm charts, Service Mesh)
• Monitoring and logging: Prometheus, Grafana, ELK stack, OpenTelemetry
• CI/CD pipelines for automated building and deploying TypeScript services

Book features

• All code examples are written in modern TypeScript (5.x) using strict compiler settings
• Real-world cases: from a simple CRUD service to a distributed system with 10+ microservices
• Chapters are structured on the principle of "from simple to complex" — each section contains ready-made code and explanations
• The author shares patterns and anti-patterns based on experience working in product teams

The book is suitable both for self-study and for teams transitioning to a microservices architecture. You will get not just theory, but ready-to-use patterns that can be adapted to your project. After reading, you will be able to confidently design, develop, and maintain distributed systems in TypeScript, avoiding common beginner mistakes.

Note: the book does not require deep knowledge of TypeScript — a confident grasp of the language basics is sufficient. All advanced concepts (generics, conditional types, decorators) are explained as needed.