JavaScript (Node.js) and Microservices: From Idea to Production

This book is a practical guide to building a microservice architecture using JavaScript and the Node.js platform. Unlike abstract theoretical materials, the author offers a step-by-step approach: from designing the first microservice to deploying a full-fledged system in the cloud.

What the book covers:

• Designing microservice architecture: service boundaries, interaction patterns, data management
• Creating RESTful APIs and asynchronous interaction via message queues (RabbitMQ, Kafka)
• Containerization with Docker and orchestration with Docker Compose
• Testing microservices: unit, integration, end-to-end tests
• Monitoring, logging, and error handling in a distributed system
• CI/CD pipelines and deployment to cloud platforms
• Security: authentication, authorization, protecting inter-service traffic

Who this book is for:

The book is intended for developers already familiar with the basics of JavaScript and Node.js who want to move on to building scalable distributed systems. It will be useful for both backend developers and full-stack engineers seeking to master a modern approach to creating server applications. Experience with databases and the HTTP protocol is welcome but not required — all necessary concepts are explained along the way.

What you will learn:

• How to properly decompose a monolith into microservices
• Which interaction patterns (synchronous and asynchronous) to choose in different scenarios
• How to organize a single entry point (API Gateway) and load balancing
• How to manage transactions and data consistency
• How to test and debug distributed systems
• How to automate building, testing, and deployment

Edition features:

• All code examples are available for download and ready to run
• Real-world cases from commercial development
• Proven recipes for typical tasks (logging, error handling, retries)
• Comparison of popular libraries and frameworks (Express, Fastify, Seneca, Moleculer)

The book "JavaScript (Node.js) and Microservices" will become your reliable guide in mastering one of the most sought-after architectural paradigms. After reading it, you will be able to confidently design, develop, and maintain microservice systems of any complexity.