Book Image

Building Microservices with Micronaut®

By : Nirmal Singh, Zack Dawood
Book Image

Building Microservices with Micronaut®

By: Nirmal Singh, Zack Dawood

Overview of this book

The open source Micronaut® framework is a JVM-based toolkit designed to create microservices quickly and easily. This book will help full-stack and Java developers build modular, high-performing, and reactive microservice-based apps using the Micronaut framework. You'll start by building microservices and learning about the core components, such as ahead-of-time compilation, reflection-less dependency injection, and reactive baked-in HTTP clients and servers. Next, you will work on a real-time microservice application and learn how to integrate Micronaut projects with different kinds of relational and non-relational databases. You'll also learn how to employ different security mechanisms to safeguard your microservices and integrate microservices using event-driven architecture in the Apache Kafka ecosystem. As you advance, you'll get to grips with automated testing and popular testing tools. The book will help you understand how you can easily handle microservice concerns in Micronaut projects, such as service discovery, API documentation, distributed configuration management, fallbacks, and circuit breakers. Finally, you'll explore the deployment and maintenance aspects of microservices and get up to speed with the Internet of Things (IoT) using the Framework. By the end of this book, you'll be able to build, test, deploy, and maintain your own microservice apps using the framework.
Table of Contents (20 chapters)
Section 1: Core Concepts and Basics
Section 2: Microservices Development
Section 3: Microservices Testing
Section 4: Microservices Deployment
Section 5: Microservices Maintenance
Section 6: IoT with Micronaut and Closure


In this chapter, we began our journey into microservices by exploring their evolution and some useful design patterns. We covered the Micronaut framework in contrast to the traditional reflection-based Java frameworks. Essentially, Micronaut's approach to leverage ahead-of-time compilation (and not reflections) sets it apart as an ideal framework for developing microservices. To get our hands dirty, we went through setting up the Micronaut CLI on mac OS as well as Windows OS. Lastly, we worked on hello-world-maven and hello-world-gradle projects. In both projects, we added hello endpoints.

With the fundamentals of microservices as well as practical hello world projects covered, this chapter enhanced your knowledge of the evolution of microservices, their design patterns, and why Micronaut should be preferred for developing microservices. This foundational understanding is the bedrock for starting the adventure of microservices development in the Micronaut framework.

At the end of this chapter, we kickstarted an exciting journey into microservices development using the Micronaut CLI and Micronaut Launch. In the next chapter, we will explore how we can integrate different kinds of persistent storage and databases in the Micronaut framework.