Book Image

Hands-On Reactive Programming with Python

By : Romain Picard
Book Image

Hands-On Reactive Programming with Python

By: Romain Picard

Overview of this book

Reactive programming is central to many concurrent systems, but it’s famous for its steep learning curve, which makes most developers feel like they're hitting a wall. With this book, you will get to grips with reactive programming by steadily exploring various concepts This hands-on guide gets you started with Reactive Programming (RP) in Python. You will learn abouta the principles and benefits of using RP, which can be leveraged to build powerful concurrent applications. As you progress through the chapters, you will be introduced to the paradigm of Functional and Reactive Programming (FaRP), observables and observers, and concurrency and parallelism. The book will then take you through the implementation of an audio transcoding server and introduce you to a library that helps in the writing of FaRP code. You will understand how to use third-party services and dynamically reconfigure an application. By the end of the book, you will also have learned how to deploy and scale your applications with Docker and Traefik and explore the significant potential behind the reactive streams concept, and you'll have got to grips with a comprehensive set of best practices.
Table of Contents (16 chapters)

Summary

This chapter concludes the implementation of the audio-transcoding server. This application is now robust enough to be used in production. The two parts studied in this chapter provide other examples of how to use RxPY in non-trivial cases.

The usage of aionotify is another example of how to integrate an AsyncIO package with RxPY, and in a functional way. inotify is different from the other drivers that have been written before because it does not implement a request/response communication pattern, but an observer one (which is more similar to ReactiveX observables). With this example, you should now be able to use any AsyncIO package in an RxPY application.

The second part covers a very important aspect of any serious application—error management. More specifically, the snippets used to describe how to manage errors in Chapter 4, Exploring Observables and Observers...