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)

Operators used for dynamic configuration

Some more operators are needed to add support for dynamic configuration in the server. Among those, the debounce operator is very powerful in the sense that using this operator avoids writing a consequent quantity of code to implement its feature. This is another example of how ReactiveX simplifies a lot of use cases.

The debounce operator

The debounce operator allows you to wait for a defined delay until an item is emitted. Each time an item is received, a timer is started with this delay as an expiration time. Items are emitted only when the timer triggers. This has the effect of dropping any item that is received before the delay has completed.

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