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State Management with React Query

You're reading from   State Management with React Query Improve developer and user experience by mastering server state in React

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Product type Paperback
Published in May 2023
Publisher Packt
ISBN-13 9781803231341
Length 228 pages
Edition 1st Edition
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Author (1):
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Daniel Afonso Daniel Afonso
Author Profile Icon Daniel Afonso
Daniel Afonso
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Table of Contents (14) Chapters Close

Preface 1. Part 1: Understanding State and Getting to Know React Query
2. Chapter 1: What Is State and How Do We Manage It? FREE CHAPTER 3. Chapter 2: Server State versus Client State 4. Chapter 3: React Query – Introducing, Installing, and Configuring It 5. Part 2: Managing Server State with React Query
6. Chapter 4: Fetching Data with React Query 7. Chapter 5: More Data-Fetching Challenges 8. Chapter 6: Performing Data Mutations with React Query 9. Chapter 7: Server-Side Rendering with Next.js or Remix 10. Chapter 8: Testing React Query Hooks and Components 11. Chapter 9: What Changes in React Query v5? 12. Index 13. Other Books You May Enjoy

Renaming cacheTime to gcTime

This was one of the changes I’m most personally happy about because it is probably the most misunderstood option in React Query. Most often, it is assumed that cacheTime means the length of time that data will be cached instead of what it really means, which is the time that inactive data in the cache will remain in memory.

To stop this misconception, the cacheTime option has been renamed gcTime. This is because gc is often a shortened way to refer to the garbage collector. Therefore, from now on, we explicitly declare the time until our data is garbage-collected.

To use it, all you need to do is add the gcTime option to your useQuery/useMutation hook, like this:

useQuery({
    gcTime: 60000
});

In the snippet, we define that after our query is inactive for one minute, the data will be garbage-collected.

To wrap up the renaming spree, let us see how our Hydrate component changed.

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