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)

Dynamic Reconfiguration and Error Management

This is the last chapter describing the evolution of the audio transcoding server. In this last chapter, two more areas will be detailed—how to handle dynamic configuration and how to manage errors correctly. This chapter is composed of four parts. The first one explains how one can monitor changes in a file. The second part details the new operators that are needed to implement such a feature. The third part covers the implementation of this feature in the encode server. Finally, the last part shows you a smarter way to handle errors than the current one.

The following topics will be covered in this chapter:

  • Monitoring file changes
  • Operators used for dynamic configuration
  • Encode driver reconfiguration
  • Error management