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

Postman for testing RESTful service contracts


Postman is a REST client that started off as a Chrome browser plugin but recently came out with native versions for both Mac and Windows. Postman supports every HTTP method you can think of including some you might not even know about. Let's install Postman in your machine and open it after installation is completed. It is very easy to use, just open Postman and log in with your Google account. Now Postman is ready to test your REST API.

Let's see the following screenshot about Postman testing a REST API:

The preceding screenshot is about Postman. Here I have tested a RESTful web service to create an account for a customer with the 1000 customer ID:

http://192.168.225.208:6060/account/customer?customer=1000

The header contains the following information:

As you can see, it is displaying information about the request and response headers. In the request header, Content-Type is application/json. In the response header, the content type is also application...