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)

Observable multiplexing

The three communication patterns studied in the previous part are certainly the most used ones in computer science. Other patterns exist, but most of the time they are variants of those. The sequence diagrams, as well as the figures showing how these pattern can be implemented on top of observables, should be clear enough so you can understand how they could be implemented. However, there are some important missing parts in these diagrams, things that must be handled so that the remote communication can work. The previous part described the network part, and how messages exchanged on it can be mapped to observables. But between these two parts, three other functional layers are needed:

  • Framing
  • Serialization
  • Routing

The following figure shows these layers on a communication between two peers:

Figure 12.12: The functional layers of remote communication...