Book Image

State Management with React Query

By : Daniel Afonso
Book Image

State Management with React Query

By: Daniel Afonso

Overview of this book

State management, a crucial aspect of the React ecosystem, has gained significant attention in recent times. While React offers various libraries and tools to handle state, each with different approaches and perspectives, one thing is clear: state management solutions for handling client state are not optimized for dealing with server state. React Query was created to address this issue of managing your server state, and this guide will equip you with the knowledge and skills needed to effectively use React Query for state management. Starting with a brief history of state management in the React ecosystem, you’ll find out what prompted the split from a global state to client and server state and thus understand the need for React Query. As you progress through the chapters, you'll see how React Query enables you to perform server state tasks such as fetching, caching, updating, and synchronizing your data with the server. But that’s not all; once you’ve mastered React Query, you’ll be able to apply this knowledge to handle server state with server-side rendering frameworks as well. You’ll also work with patterns to test your code by leveraging the testing library and Mock Service Worker. By the end of this book, you'll have gained a new perspective of state and be able to leverage React Query to overcome the obstacles associated with server state.
Table of Contents (14 chapters)
Part 1: Understanding State and Getting to Know React Query
Part 2: Managing Server State with React Query

What is server state?

We have always had server state in our applications. The main issue was that we tried to tie it in with our client state management solutions. A common example of trying to tie our server state with our client state management solutions is using either Redux Saga or Redux Thunk. Both of them made it easier to do data fetching and store your server state. The main issue starts when we have to deal with some of the challenges server state brings us, but let’s not get ahead of ourselves; you will understand these challenges in the next section.

Now, what is server state, you might be wondering?

Well, as the name says, server state is the type of state that is stored on your server. Here are a couple of things that help identify your server state:

  • This state is asynchronous, which means you need to use asynchronous APIs for fetching and updating it.
  • It is persisted remotely – most of the time on a database or external place you don...