Providing alternative data paths when a service is down.

The story begins with the and the Organization Service . Instead of one giant codebase, the team broke EagleEye into small, self-contained units using Spring Boot . Each service became responsible for a single business task, communicating via REST and storing its own data in separate Postgres instances. Chapter 2: Lost and Found (Service Discovery)

Maintained by Illary Huaylupo, containing code for all chapters including licensing and organization services.

Whether you are looking to understand service discovery, implementing distributed tracing, or securing your services with OAuth2, the resources provided in this book and its GitHub repository will provide the guidance you need.

(legally) github.com/ihuaylupo/spmia-chapter2 through chapter12

: The repository is typically organized by chapter. If you get stuck on Chapter 5, you can check out the specific Git branch for that chapter to see exactly how the code should look.

Note that while the complete source code is freely accessible on GitHub to help you learn, the textual content of the book itself is copyrighted material and is not legally hosted in public GitHub repositories. Avoid downloading unverified PDF files from random repositories, as they often contain outdated drafts or malware.

A very common search query brings developers here:

Then came the inevitable: a network glitch. In the old days, one failing service would cause a domino effect, crashing the entire app. By applying with Resilience4j , the team built "circuit breakers". If the Organization Service slowed down, the Licensing Service simply tripped the circuit, preventing a total system collapse. Chapter 4: The Front Door (API Gateway)

The book demonstrates how to use Spring Cloud Config Server to store environment properties outside the deployment artifact. It highlights runtime profile switching (Development, Quality Assurance, Production) without restarting microservice instances. 2. Service Discovery with Consul

The search for often comes from a place of genuine need—tight budgets, curiosity before purchase, or lack of local access. However, consider the following:

| Repository Type | Purpose | Example(s) | Usefulness for Learners | | :--- | :--- | :--- | :--- | | | The source code from the book, exactly as the authors intended, for running examples and learning. | ihuaylupo/manning-smia | Essential Primary Resource | | Personal Learning Notes | Individual study notes, summaries, or translated explanations from readers. | Relph1119/spring-microservices-in-action-2nd (Chinese notes) | High (for alternative explanations) | | Forked or Mirrored Repos | A complete, unmodified copy of the official code, often used as a backup or starting point. | wangzt568/manning-smia | Low (redundant; stick with official) | | Copyright-Infringing Content | Unauthorized copies of the book's PDF. | bangmaple/books-should-read repository containing an illegal PDF file | Dangerous & Unreliable |

Let’s be real. You’re a developer, not the FBI. Maybe you’re in a country with weak copyright enforcement, or you’re a student with no budget. You might still click that raw GitHub link.

If you are currently working through the book or planning a microservices migration, tell me:

: The book places a much heavier emphasis on containerization and orchestration, showing you how to deploy your Spring Microservices directly into a Kubernetes cluster.

Platforms like O'Reilly Online Learning or Scribd sometimes offer access to technical books, though purchasing directly from Manning is recommended to ensure you have the final, updated version.