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


In this chapter, we learned how to test our components and hooks that leverage React Query. Congratulations! Thanks to this chapter, you have become a full-on React Query master!

You learned how MSW can save you a lot of time developing and testing your React Query code by having a couple of request handlers.

You got to meet the three patterns you can apply to make your code more readable and reusable (creating an API file, leveraging query key factories, and creating a hooks folder) and saw how valuable they were in adapting the code we saw in previous chapters.

Finally, you learned when to use the React Testing Library and the React Hooks Testing Library to test your queries and mutations, and you will keep the user-centric approach at the forefront of your mind when writing tests from now on.

Once again, congratulations! You should now be able to leverage React Query in every scenario and sleep better at night because you can write valuable tests for it. Now...