Quarkus in Action

8 Reactive programming

This chapter covers

• Learning what reactive programming is
• Identifying why we want to write reactive code
• Explaining SmallRye Mutiny as the reactive library used in Quarkus
• Analyzing how the reactive paradigm integrates into the Quarkus architecture

We have touched on reactive programming throughout the book since we cannot always avoid it (especially if we want to use Hibernate Reactive). In this chapter, we finally dive into the reactive concepts to understand why you might consider using reactive programming in your applications.

The reactive programming paradigm is an alternative way of writing software programs. In contrast to the imperative model, which executes the program as a sequence of ordered steps, ...