Spring Boot 4 Microservices Engineering: A Practical Java Guide to Building Secure, Cloud-Native APIs and Distributed Systems

By: Lauritsen, Marcus C.

Building real backend systems can feel overwhelming when tutorials jump too quickly from "Hello World" to databases, security, microservices, messaging, containers, and cloud deployment. Spring Boot 4 Microservices Engineering gives you a clearer path.

Designed for Java developers who are new to Spring Boot, backend engineering, or microservices, this practical guide walks you through the process one manageable step at a time. You do not need previous experience with Spring Security, PostgreSQL, Kafka, Docker, Kubernetes, or distributed systems. Basic familiarity with Java is helpful, and every major Spring and backend concept is introduced progressively.

Instead of disconnected examples, you build one evolving commerce and fulfillment platform and gradually transform it into a secure, persistent, event-driven, observable, tested, and deployable distributed system.

Key Features

Step-by-step explanations that break complex backend concepts into manageable stages

Practical Java and Spring Boot 4 examples built around a real project

Production-focused REST API development, persistence, security, testing, and deployment

Hands-on coverage of PostgreSQL, JPA, Hibernate, OAuth2, JWT, gRPC, Kafka, Docker, Kubernetes, and observability

Practical exercises that reinforce each chapter

Clear explanations of common failures, troubleshooting, and why engineering decisions matter

A learning approach that treats mistakes as part of the process and builds confidence through small, working improvements

What You Will Learn

You will learn how to:

Build structured Spring Boot applications with clear architectural boundaries

Design, validate, document, and test production-ready REST APIs

Persist data safely with PostgreSQL, Spring Data JPA, Hibernate, and migrations

Secure APIs with Spring Security, OAuth2, OpenID Connect, JWT, roles, and permissions

Design and decompose microservices with clear service and data ownership

Communicate between services using HTTP, gRPC, and Apache Kafka

Handle retries, idempotency, eventual consistency, circuit breakers, and failure scenarios

Add structured logging, metrics, health checks, and distributed tracing

Test realistic infrastructure with integration and contract testing

Containerize services with Docker and deploy them with Kubernetes

Who This Book Is For

This book is ideal for Java developers, students, self-learners, and aspiring backend engineers who want to move beyond basic tutorials and understand how modern services are actually designed, secured, tested, observed, and deployed. It is especially suitable for readers new to Spring Boot or microservices who want a practical, confidence-building path toward production-ready backend development.

Table of Contents

Engineering Modern Applications with Spring Boot 4

Building Production-Grade REST APIs

Persistence and Transaction Management with PostgreSQL

Securing Spring Boot APIs and Services

Designing and Decomposing Microservices

Synchronous Communication Between Services

Event-Driven Microservices with Apache Kafka

Resilience and Observability in Distributed Systems

Testing Spring Boot Microservices

Docker, Kubernetes, and Production Readiness

If you are ready to stop following isolated tutorials and start building reliable Java backend systems with confidence, Spring Boot 4 Microservices Engineering gives you the practical roadmap. Start with the first service, build one capability at a time, and turn each small win into real backend engineering skill.

• Format: Paperback
• Language: English
• ISBN: B0HKQB6FBD
• ISBN13: 9798176475852
• Release Date: September 2026
• Publisher: Independently Published
• Length: 272 Pages
• Weight: 1.05 lbs.
• Dimensions: 0.6" x 7.0" x 10.0"