Chapter 1, Introducing the REST Architectural Style, covers the REST software architectural style and the core architectural elements that form a RESTful system.

Chapter 2, Java APIs for JSON Processing, gives an overview of the JSON messaging format and the popular tools and frameworks around JSON.

Chapter 3, Introducing the JAX-RS API, introduces the JAX-RS APIs. This chapter will explain how we can build RESTful web services with the JAX-RS APIs.

Chapter 4, Advanced Features in the JAX-RS APIs, takes a deeper look into the advanced JAX-RS APIs, with many real-life use cases.

Chapter 5, Introducing JAX-RS Implementation Framework Extensions, discusses some of the very useful JAX-RS implementation framework extension APIs that are not yet a part of the JAX-RS standard.

Chapter 6, Securing RESTful Web Services, explores how to secure RESTful web services using different authentication and authorization techniques.

Chapter 7, Description and Discovery of RESTful Web Services, describes the popular solutions that are available today for describing, producing, consuming, and visualizing RESTful web services.

Chapter 8, RESTful API Design Guidelines, discusses best practices and design guidelines that developers will find useful while building RESTful web services.

Chapter 9, The Role of RESTful APIs in Emerging Technologies, discusses the applicability of the RESTful API in recent technology trends such as cloud, IoT, single-page applications, and open data protocol.

Appendix, Useful Features and Techniques, discusses on the tools needed for building and testing JAX-RS application with various packaging or deployment models. Also covers the technique to convert JPA models into OData-enabled RESTful web services.