RESTful Java Web Services, Second Edition

Book Image

RESTful Java Web Services, Second Edition

Book Image

RESTful Java Web Services, Second Edition

Overview of this book

RESTful Java Web Services Second Edition

RESTful Java Web Services Second Edition

Credits

About the Author

About the Author

Acknowledgments

Acknowledgments

About the Reviewers

About the Reviewers

www.PacktPub.com

www.PacktPub.com

Preface

Free Chapter

Introducing the REST Architectural Style

Introducing the REST Architectural Style

The REST architectural style

Introducing HTTP

The core architectural elements of a RESTful system

Description and discovery of RESTful web services

Java tools and frameworks for building RESTful web services

Java APIs for JSON Processing

Java APIs for JSON Processing

A brief overview of JSON

Processing JSON data

Using JSR 353 – Java API for processing JSON

Using the Jackson API for processing JSON

Using the Gson API for processing JSON

Introducing the JAX-RS API

Introducing the JAX-RS API

An overview of JAX-RS

JAX-RS annotations

Returning additional metadata with responses

Understanding data binding rules in JAX-RS

Building your first RESTful web service with JAX-RS

Client APIs for accessing RESTful web services

Advanced Features in the JAX-RS API

Advanced Features in the JAX-RS API

Understanding subresources and subresource locators in JAX-RS

Exception handling in JAX-RS

Reporting errors using application exceptions

Introducing validations in JAX-RS applications

Supporting custom request-response message formats

Asynchronous RESTful web services

Asynchronous RESTful web service client

Managing HTTP cache in a RESTful web service

Understanding filters and interceptors in JAX-RS

Understanding the JAX-RS resource lifecycle

Introducing the Jersey Framework Extensions

Introducing the Jersey Framework Extensions

Specifying dependencies for Jersey

Programmatically configuring JAX-RS resources during deployment

Modifying JAX-RS resources during deployment using ModelProcessor

Building Hypermedia as the Engine of Application State (HATEOAS) APIs

Reading and writing binary large objects using Jersey APIs

Generating chunked output using Jersey APIs

Supporting Server Sent Event in RESTful web services

Understanding the Jersey server-side configuration properties

Monitoring RESTful web services using Jersey APIs

Securing RESTful Web Services

Securing RESTful Web Services

Securing and authenticating web services

HTTP basic authentication

HTTP digest authentication

Securing RESTful web services with OAuth

Authorizing the RESTful web service accesses via the security APIs

Input validation

The Description and Discovery of RESTful Web Services

The Description and Discovery of RESTful Web Services

Introduction to RESTful web services

Web Application Description Language

RESTful API Modeling Language

Revisiting the features offered in WADL, RAML, and Swagger

RESTful API Design Guidelines

RESTful API Design Guidelines

Identifying resources in a problem domain

Transforming operations to HTTP methods

Naming RESTful web resources

Fine-grained and coarse-grained resource APIs

Using header parameter for content negotiation

Multilingual RESTful web API resources

Representing date and time in RESTful web resources

Implementing partial response

Implementing partial update

Returning modified resources to the caller

Paging resource collection

Implementing search and sort operations

Using HATEOAS in response representation

Versioning RESTful web APIs

Caching RESTful web API results

Using HTTP status codes in RESTful web APIs

Overriding HTTP methods

Documenting RESTful web APIs

Asynchronous execution of RESTful web APIs

Microservice architecture style for RESTful web applications

Using Open Data Protocol with RESTful web APIs

Useful Features and Techniques

Useful Features and Techniques

Tools for building a JAX-RS application

Integration testing of JAX-RS resources with Arquillian

Implementing PATCH support in JAX-RS resources

Using third-party entity provider frameworks with Jersey

Packaging and deploying JAX-RS applications

Index

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Using HATEOAS in response representation

Hypertext as the Engine of Application State (HATEOAS) refers to the use of hypermedia links in the resource representations. This architectural style lets the clients dynamically navigate to the desired resource by traversing the hypermedia links present in the response body. There is no universally accepted single format for representing links between two resources in JSON. This section shows some of the popular standards for defining links between resources.

Hypertext Application Language

The Hypermedia API Language (HAL) is a promising proposal that sets the conventions for expressing hypermedia controls (such as links) with JSON or XML. Currently, this proposal is in the draft stage. It mainly describes two concepts for linking resources:

Embedded resources: This concept provides a way to embed another resource within the current one. In the JSON format, you will use the _embedded attribute to indicate the embedded resource.
Links: This concept...