In this chapter, we introduced the Observer pattern in reactive programming.
The core idea of this type of Observer pattern is to react to a stream of data and events, as with the stream of water we see in nature. We have lots of examples in the computing world of this idea or the ReactiveX technique through its extensions for the programming languages (RxJava, RxJS, RxPY, and so on). Modern JavaScript frameworks such as Angular are other examples we mentioned.
We have discussed examples of RxPY that can be used to build functionality, and which serve as an introduction for the reader to approach this programming paradigm and continue their own research via the RxPY official documentation and examples as well as existing code that one may find on GitHub.
In the next chapter, we will cover the Microservices pattern and other patterns for the Cloud.