Book Image

RESTful Java Web Services - Third Edition

By : Balachandar Bogunuva Mohanram, Jobinesh Purushothaman
Book Image

RESTful Java Web Services - Third Edition

By: Balachandar Bogunuva Mohanram, Jobinesh Purushothaman

Overview of this book

Representational State Transfer (REST) is a simple yet powerful software architecture style to create lightweight and scalable web services. The RESTful web services use HTTP as the transport protocol and can use any message formats, including XML, JSON(widely used), CSV, and many more, which makes it easily inter-operable across different languages and platforms. This successful book is currently in its 3rd edition and has been used by thousands of developers. It serves as an excellent guide for developing RESTful web services in Java. This book attempts to familiarize the reader with the concepts of REST. It is a pragmatic guide for designing and developing web services using Java APIs for real-life use cases following best practices and for learning to secure REST APIs using OAuth and JWT. Finally, you will learn the role of RESTful web services for future technological advances, be it cloud, IoT or social media. By the end of this book, you will be able to efficiently build robust, scalable, and secure RESTful web services using Java APIs.
Table of Contents (11 chapters)

Implementing search and sort operations

Allowing a client to perform the search and sort operations on a resource collection is very essential to improve the market adoption of your APIs. As there is no existing standard for passing sort criteria or search conditions, various API vendors follow different patterns. A very common approach is to pass the search and sort criteria as the query parameters to the server.

The following example illustrates how you can pass the search criteria as the query parameters to the server:

/employees?departmentName=hr&salary>500000 

The query parameters present in the preceding resource request URI can be used by the RESTful API implementation to find out the employee resources belonging to the HR department whose annual salary is greater than 500000.

Similarly, to read the collection of resources in a sorted order, you can pass the sort...