Introduction

Spring Boot helps developers create applications that simply run. When minimal configuration is required to start up an application, even novice Java developers are ready to start. But this simplicity shouldn''t constrain developers in addressing more complex enterprise requirements where microservice architecture is concerned. With the need to rapidly deploy, patch, or scale applications, containers provide solutions which can accelerate development, testing as well as production cycles. The cloud helps companies to scale and adapt at speed, accelerate innovation and drive business agility, without heavy upfront IT investment. What if we can equip even a novice developer with all that is required to help enterprises achieve all of this, this book does this and more.

About the Book

Java Microservices and Containers in the Cloud offers a comprehensive guide to both architecture and programming aspects to Java microservices development, providing a fully hands-on experience. We not only describe various architecture patterns but also provide practical implementations of each pattern through code examples. Despite the focus on architecture, this book is designed to be accessible to novice developers with only basic programming skills, such as writing a "Hello World" program and using Maven to compile and run Java code. It ensures that even such readers can easily comprehend, deploy, and execute the code samples provided in the book. Regardless of your current knowledge or lack thereof in Docker, Kubernetes, and Cloud technologies, this book will empower you to develop programming skills in these areas.

Target Audience and Goals

There is no restriction on beginners attempting to understand serious and non-trivial architecture constraints. While mastering concurrency and scalability techniques often requires years of experience, this book promises to empower you to write microservices, as well as how to containerize and deploy them in the cloud. If you are a non-programming manager who is not afraid to read code snippets, this book will empower you to navigate the challenges posed by seasoned architects. It will equip you with the necessary understanding of specialized jargon, enabling you to engage in more meaningful discussions and break through barriers when collaborating with programmers, architects and engineers across the table.

Code Examples and Accessibility

The code examples provided in the book are intentionally designed to be simple and accessible to all, regardless of your programming background. Even if you are a C# or Python programmer and not familiar with Java, you will find the code examples easy to follow and understand.

You will

• Acquire proficiency in both RPC-style and Messaging-style inter-microservice communication
• Construct microservices utilizing a combination of SQL (PostgreSQL) and NoSQL (MongoDB) databases
• Leverage Liquibase, a database schema version control tool, and administer UI in conjunction with PostgreSQL
• Leverage both GraphQL and conventional REST approaches side by side
• Gain practical experience in implementing Hexagonal and Onion Architectures through hands-on exercises
• Integrate asynchronous processing into your Java applications using powerful APIs such as DeferredResult and CompletableFuture

Who it's for

Developers, programmers and Architects who want to level up their Java Microservices and Architecture knowledge as well as managers who want to brush up on their technical knowledge around the topic.