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)

Implementation of an Audio Transcoding Server

This chapter and the next two cover a realistic example of an application. This application uses the features and libraries described in previous chapters. It is based on RxPY, runs on an AsyncIO event loop, and uses the aiohttp package. The application is developed in a functional and reactive way. The first part describes how the project is structured. Since this application is more than a code snippet, its code is structured as a Python package. This part also contains some advice to improve the readability of the RxPY code. The second part presents Cyclotron, a framework that implements the code written in Chapter 3, Functional Programming with ReactiveX, to deal with observable cycles in a functional way. The third part documents the new operators being used in this chapter. Finally, the fourth part details the implementation...