Book Image

Building Microservices with Spring

By : Dinesh Rajput, Rajesh R V
Book Image

Building Microservices with Spring

By: Dinesh Rajput, Rajesh R V

Overview of this book

Getting Started with Spring Microservices begins with an overview of the Spring Framework 5.0, its design patterns, and its guidelines that enable you to implement responsive microservices at scale. You will learn how to use GoF patterns in application design. You will understand the dependency injection pattern, which is the main principle behind the decoupling process of the Spring Framework and makes it easier to manage your code. Then, you will learn how to use proxy patterns in aspect-oriented programming and remoting. Moving on, you will understand the JDBC template patterns and their use in abstracting database access. After understanding the basics, you will move on to more advanced topics, such as reactive streams and concurrency. Written to the latest specifications of Spring that focuses on Reactive Programming, the Learning Path teaches you how to build modern, internet-scale Java applications in no time. Next, you will understand how Spring Boot is used to deploying serverless autonomous services by removing the need to have a heavyweight application server. You’ll also explore ways to deploy your microservices to Docker and managing them with Mesos. By the end of this Learning Path, you will have the clarity and confidence for implementing microservices using Spring Framework. This Learning Path includes content from the following Packt products: • Spring 5 Microservices by Rajesh R V • Spring 5 Design Patterns by Dinesh Rajput
Table of Contents (22 chapters)
Title Page
Copyright
About Packt
Contributors
Preface
Index

Reactive Spring Boot microservices


Reactive microservices highlight the need of asynchronously integrating microservices in an ecosystem. Even though external service calls primarily get benefits from reactive style programming, reactive principles are useful in any software development, as it improves resource efficiency and scalability characteristics. Therefore, it is important build microservices using reactive programming principles.

There are two ways we can implement reactive microservices. The first approach is to use the Spring WebFlux in the Spring Framework 5. This approach uses reactive style web server for microservices. The second approach is to use a messaging server such as RabbitMQ for asynchronous interaction between microservices. In this chapter, we will explore both the options mentioned here.

Reactive microservices using Spring WebFlux

Reactive programming in Java is based on the Reactive Streams specification. Reactive stream specification defines the semantics for asynchronous...