Chapter 1: Why Redux? An Introduction to Redux Architecture

Redux is a consolidated state management solution used by millions of websites, downloaded 3 million times per week. Overall, it's a great solution for a complex problem, but it was created with some limitations that Rematch aims to solve with best practices.

In this book, we'll analyze the weakest points of Redux and how Rematch solves them with a small wrapper in less than 2 KB. We'll move from the most basic example of a to-do task application to an Amazon clone website built with React and latest web technologies trends. We'll also create a mobile application with React Native and Rematch, introduce testing coverage, and, of course, explore TypeScript and Rematch plugins. By the end of this book, you'll be able to create any application or migrate an existing one to Rematch.

In this chapter, we'll learn why Redux was created and what problem it is designed to solve. Also, we'll learn how it works internally, and we'll get acquainted with some Redux terminology.

In this chapter, we will cover the following topics:

• Why Redux?
• What was there before Redux?
• How does Redux work?

By the end of this chapter, you will know the story behind Redux, how it works internally, and what was the cause of its creation. Of course, you will also learn practically all the most important terminology of Redux and use it in the next chapters.