redux-saga is a library that aims to make application side
effects (i.e. asynchronous things like data fetching and impure things
like accessing the browser cache) easier to manage, more efficient to
execute, simple to test, and better at handling failures.
https://medium.com/@velocity360/creating-a-news-feed-app-with-react-and-redux-58a0404ee75d
In this tutorial, we are going to create a simple application which fetches data from various RSS feeds of the user’s choice and displays the results in a web based interface. By following along, you will gain familiarity with both some simple and advanced concepts such as React, Redux, handling network requests with React, async actions, etc. We are learning by building a fully functioning and deployed application, instead of spending too much time on theory. If you really want to dig into theory and understand the underlying technologies my fully, I recommend reading through the React and Redux docs. For the full video series of this tutorial, click here:
https://thinkster.io/tutorials/setting-up-react-redux/introducing-react-redux
The react-redux module is the "official bindings" between react and redux. It adds some useful syntactic sugar for binding your components to your redux state. The Provider component that you get from react-redux is how you tell react-redux about your redux store.
Redux is a predictable state container for JavaScript apps.
(Not to be confused with a WordPress framework – Redux Framework.)
It helps you write applications that behave consistently, run in different environments (client, server, and native), and are easy to test. On top of that, it provides a great developer experience, such as live code editing combined with a time traveling debugger.