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 client state?

I know, by now, you must be thinking, when is this book going to start React Querying? We are almost there, I promise you. I just need you to fully understand why I love React Query so much and to do so, it is important to understand the main problem it solves.

Now, client state is not one of the problems it solves, but you must be able to identify client state in your day-to-day life as a developer so that you fully understand what should be managed by React Query and what should be managed by other state management tools.

Client state is the state that is owned by your application.

Here are a couple of things that help define your client state:

  • This state is synchronous, which means you can access it without any waiting time and by using synchronous APIs.
  • It is local; therefore, it only exists in your application.
  • It is temporary, so it may get lost upon a page reload and is generally non-persistent between sessions.

With this...