Summary
In this chapter, you learned what reactive programming is and what its main concepts are: asynchronous, non-blocking, responsive, and more. Reactive streams were introduced and explained in simple terms, along with the RxJava library, which is the first solid implementation that supports reactive programming principles.
Now you can write code for asynchronous processing using reactive programming.
In the next chapter, we will talk about microservices as the foundation for creating reactive systems, and we will review another library that successfully supports reactive programming: Vert.x. We will use it to demonstrate how various microservices can be built.
