Book Image

Learning Spring Boot 2.0 - Second Edition

By : Greg L. Turnquist, Greg L. Turnquist
Book Image

Learning Spring Boot 2.0 - Second Edition

By: Greg L. Turnquist, Greg L. Turnquist

Overview of this book

Spring Boot provides a variety of features that address today's business needs along with today's scalable requirements. In this book, you will learn how to leverage powerful databases and Spring Boot's state-of-the-art WebFlux framework. This practical guide will help you get up and running with all the latest features of Spring Boot, especially the new Reactor-based toolkit. The book starts off by helping you build a simple app, then shows you how to bundle and deploy it to the cloud. From here, we take you through reactive programming, showing you how to interact with controllers and templates and handle data access. Once you're done, you can start writing unit tests, slice tests, embedded container tests, and even autoconfiguration tests. We go into detail about developer tools, AMQP messaging, WebSockets, security, and deployment. You will learn how to secure your application using both routes and method-based rules. By the end of the book, you'll have built a social media platform from which to apply the lessons you have learned to any problem. If you want a good understanding of building scalable applications using the core functionality of Spring Boot, this is the book for you.
Table of Contents (11 chapters)

Reactive Data Access with Spring Boot

Very impressed with @springboot so far, 10 mins to get a REST service up and running, now to add MongoDB. No black magic under the covers!
Graham Rivers-Brown @grahamrb

In the previous chapter, we started putting together the frontend bits of our social media platform using Spring WebFlux. The missing critical ingredient was a data store. Few applications exist that don't touch a database. In fact, data storage is arguably one of the most critical components we encounter with app development. In this chapter, we'll learn how to persist information in a reactive data store (MongoDB), and learn how to interact with it.

In this chapter, we will be doing the following:

  • Getting underway with a reactive data store
  • Wiring up Spring Data repositories with Spring Boot
  • Creating a reactive repository
  • Pulling data through a Mono/Flux...