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

HATEOAS-enabled Spring Boot microservice


In the next example, Spring Initializr will be used to create a Spring Boot project. Spring Initializr is a drop-in replacement for the STS project wizard, and provides a web UI for configuring and generating a Spring Boot project. One of the advantages of the Spring Initializr is that it can generate a project through the website, which can then be imported into any IDE.

In this example, the concept of HyperMedia As The Engine Of Application State (HATEOAS) for REST-based services and the Hypertext Application Language (HAL) browser will be examined.

HATEOAS is useful for building conversational style microservices which exhibit strong affinity between UI and its backend services.

HATEOAS is a REST service pattern in which navigation links are provided as part of the payload metadata. The client application determines the state, and follows the transition URLs provided as part of the state. This methodology is particularly useful in responsive mobile...