Book Image

Hands-On Reactive Programming in Spring 5

By : Oleh Dokuka, Igor Lozynskyi
Book Image

Hands-On Reactive Programming in Spring 5

By: Oleh Dokuka, Igor Lozynskyi

Overview of this book

These days, businesses need a new type of system that can remain responsive at all times. This is achievable with reactive programming; however, the development of these kinds of systems is a complex task, requiring a deep understanding of the domain. In order to develop highly responsive systems, the developers of the Spring Framework came up with Project Reactor. Hands-On Reactive Programming in Spring 5 begins with the fundamentals of Spring Reactive programming. You’ll explore the endless possibilities of building efficient reactive systems with the Spring 5 Framework along with other tools such as WebFlux and Spring Boot. Further on, you’ll study reactive programming techniques and apply them to databases and cross-server communication. You will advance your skills in scaling up Spring Cloud Streams and run independent, high-performant reactive microservices. By the end of the book, you will be able to put your skills to use and get on board with the reactive revolution in Spring 5.1!
Table of Contents (12 chapters)

Reactive Spring Data in action

To finish this chapter and highlight the benefits of the reactive persistence, let's create a data-intensive reactive application that has to communicate with a database frequently. For example, let's revisit the example from Chapter 6WebFlux Async Non-Blocking Communication. There, we implemented an alternative read-only web frontend application for the Gitter service (https://gitter.im). The application connects to a predefined chat room and re-streams all the messages to all connected users through Server-Sent Events (SSE). Now, with new requirements, our application has to collect statistics about the most active and the most referenced users in the chat room. Our chat application may use MongoDB to store messages and user profiles. This information may also be used for statistic recalculation purposes. The...