Book Image

Building RESTful Web Services with Spring 5 - Second Edition

By : Raja CSP Raman, Ludovic Dewailly
Book Image

Building RESTful Web Services with Spring 5 - Second Edition

By: Raja CSP Raman, Ludovic Dewailly

Overview of this book

REST is an architectural style that tackles the challenges of building scalable web services. In today's connected world, APIs have taken a central role on the web. APIs provide the fabric through which systems interact, and REST has become synonymous with APIs.The depth, breadth, and ease of use of Spring makes it one of the most attractive frameworks in the Java ecosystem. Marrying the two technologies is therefore a very natural choice.This book takes you through the design of RESTful web services and leverages the Spring Framework to implement these services. Starting from the basics of the philosophy behind REST, you'll go through the steps of designing and implementing an enterprise-grade RESTful web service. Taking a practical approach, each chapter provides code samples that you can apply to your own circumstances.This second edition brings forth the power of the latest Spring 5.0 release, working with MVC built-in as well as the front end framework. It then goes beyond the use of Spring to explores approaches to tackle resilience, security, and scalability concerns. Improve performance of your applications with the new HTTP 2.0 standards. You'll learn techniques to deal with security in Spring and discover how to implement unit and integration test strategies.Finally, the book ends by walking you through building a Java client for your RESTful web service, along with some scaling techniques using the new Spring Reactive libraries.
Table of Contents (21 chapters)
Title Page
Copyright and Credits
Packt Upsell
Spring Security and JWT (JSON Web Token)

Distributed caching

Distributed caching techniques will be helpful to improve the scalability in our web services. Unlike in-process caches, distributed caches need not be built in the same application space. They can be stored on multiple nodes of a cluster. Although distributed caches are deployed on multiple nodes, they offer a single state of the cache.

Data-tier caching

Adding a caching layer in the database will provide better performance. It is considered a common strategy for improving performance, especially when read requests are heavy in our application. Here, we will discuss Hibernate's levels of caching.

First-level caching

A first-level cache is an inbuilt session cache enabled by Hibernate, and it is a mandatory cache through all requests. There is no option to disable first-level caching in Hibernate. First-level caching is associated with a session object and will be lost once the session is expired. When we query the web service for the first time, the object is retrieved from...