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

Chapter 7. Implementing Reactive Design Patterns

In this chapter, we will explore one of the most important features of the Spring 5 Framework, which is reactive pattern programming. The Spring 5 Framework introduced this new feature with the Spring web reactive module. We will discuss this module in this chapter. Before that, let's have a look at reactive patterns. What is the reactive pattern, and why is it growing more popular nowadays? I will start my discussion on reactive pattern with the following statement made by Satya Nadella, CEO, Microsoft Corporation:

Every business out there now is a software company, is a digital company.

The topics we will cover here are as follows:

  • Why reactive pattern?
  • The reactive pattern principles
  • Blocking calls
  • Non-blocking calls
  • Back-pressure
  • Implementing the reactive pattern using the Spring Framework
  • The Spring web reactive module