Book Image

Mastering Spring Cloud

By : Piotr Mińkowski
Book Image

Mastering Spring Cloud

By: Piotr Mińkowski

Overview of this book

Developing, deploying, and operating cloud applications should be as easy as local applications. This should be the governing principle behind any cloud platform, library, or tool. Spring Cloud–an open-source library–makes it easy to develop JVM applications for the cloud. In this book, you will be introduced to Spring Cloud and will master its features from the application developer's point of view. This book begins by introducing you to microservices for Spring and the available feature set in Spring Cloud. You will learn to configure the Spring Cloud server and run the Eureka server to enable service registration and discovery. Then you will learn about techniques related to load balancing and circuit breaking and utilize all features of the Feign client. The book now delves into advanced topics where you will learn to implement distributed tracing solutions for Spring Cloud and build message-driven microservice architectures. Before running an application on Docker container s, you will master testing and securing techniques with Spring Cloud.
Table of Contents (22 chapters)
Title Page
Copyright and Credits
Packt Upsell

Enabling Eureka on the client side

As on the server side, there is only one dependency that has to be included to enable a Eureka Client for the application. So, first include the following starter to your project's dependencies:


The example application does nothing more than communicate with the Eureka Server. It has to register itself and send metadata information such as host, port, health indicator URL, and home page. Eureka receives heartbeat messages from each instance belonging to a service. If the heartbeat isn't received after a configured period of time, the instance is removed from the registry. The second responsibility of discovery client is fetching data from the server, then caching it and periodically asking for changes. It can be enabled by annotating the main class with @EnableDiscoveryClient. Surprisingly...