Book Image

Building RESTful Web Services with Java EE 8

By : Mario-Leander Reimer
Book Image

Building RESTful Web Services with Java EE 8

By: Mario-Leander Reimer

Overview of this book

Java Enterprise Edition is one of the leading application programming platforms for enterprise Java development. With Java EE 8 finally released and the first application servers now available, it is time to take a closer look at how to develop modern and lightweight web services with the latest API additions and improvements. Building RESTful Web Services with Java EE 8 is a comprehensive guide that will show you how to develop state-of-the-art RESTful web services with the latest Java EE 8 APIs. You will begin with an overview of Java EE 8 and the latest API additions and improvements. You will then delve into the details of implementing synchronous RESTful web services and clients with JAX-RS. Next up, you will learn about the specifics of data binding and content marshalling using the JSON-B 1.0 and JSON-P 1.1 APIs. This book also guides you in leveraging the power of asynchronous APIs on the server and client side, and you will learn to use server-sent events (SSEs) for push communication. The final section covers advanced web service topics such as validation, JWT security, and diagnosability. By the end of this book, you will have implemented several working web services and have a thorough understanding of the Java EE 8 APIs required for lightweight web service development.
Table of Contents (8 chapters)

Implementing hypermedia-driven REST APIs

In this section, we're going to take a look at how you can traverse REST resources using hypermedia (with links and URIs). We'll see how to use JSON-P to construct hypermedia enabled JSON structures. We'll use the @Context and UriInfo objects to construct resource URIs programmatically. We will also have a look at how to set link headers with URIs on the HTTP response.

Let's get started and switch to our IDE. We will prepare a resource, and this resource will be serving books and authors; both are individual REST resources. Obviously, books are written by authors, so we should be able to navigate from books to the authors and vice versa. This is what we can use hypermedia for.

Navigate to our book resource. In here, we have the method to serve a specific book. First up, we'll obtain the book and then we can construct...