Book Image

Mastering Spring Boot 2.0

By : Dinesh Rajput
Book Image

Mastering Spring Boot 2.0

By: Dinesh Rajput

Overview of this book

Spring is one of the best frameworks on the market for developing web, enterprise, and cloud ready software. Spring Boot simplifies the building of complex software dramatically by reducing the amount of boilerplate code, and by providing production-ready features and a simple deployment model. This book will address the challenges related to power that come with Spring Boot's great configurability and flexibility. You will understand how Spring Boot configuration works under the hood, how to overwrite default configurations, and how to use advanced techniques to prepare Spring Boot applications to work in production. This book will also introduce readers to a relatively new topic in the Spring ecosystem – cloud native patterns, reactive programming, and applications. Get up to speed with microservices with Spring Boot and Spring Cloud. Each chapter aims to solve a specific problem or teach you a useful skillset. By the end of this book, you will be proficient in building and deploying your Spring Boot application.
Table of Contents (23 chapters)
Title Page
Copyright and Credits
Dedication
Packt Upsell
Contributors
Preface
Index

Building and testing customer service


Let's create builds for the Eureka server, customer, and Account service using the mvn clean install command and after that run all these services using the Java command. You can find customer service in port 6161. And Account service is available at port 6060. But we are using the Spring Cloud Eureka registry server, so you don't need to use the actual hostname and port to call Account service in the customer service, just use the logical service name (http://ACCOUNT-SERVICE).

Now fetch the customer service by opening the browser and type http://localhost:6161/customer/1001. It should show the following output in the browser:

As you can see in the preceding screenshot, the customer with the 1001 customer ID has been rendered with two accounts by calling the Account service internally by the customer service. So if both services are running fine, the customer service is displaying the data returned by the Account service. That means the circuit-breaker...