Can React vreplace React Query(Tanstack)?

The React team has recently launched the stable version of React 19, bringing a host of new features and improvements that are set to revolutionize how we build React applications.
While these updates aim to provide native solutions to common patterns and challenges in React development, one key question arises: do these new hooks have the potential to replace popular packages like Tanstack Query (formerly React Query)?

What’s New in React 19

React 19 introduces several new hooks and features designed to simplify data handling, improve performance, and enhance developer experience. Here am going to a brief overview of some of the most notable changes that are common between React 19 and Tanstack :

1. useActionState This hook helps manage common cases for actions, providing built-in support for handling errors, pending states, and form submissions.

function ChangeName({ currentName, onUpdateName }) {
  const [optimisticName, setOptimisticName] = useOptimistic(currentName);

  const submitAction = async (formData) => {
    const newName = formData.get("name");
    setOptimisticName(newName);
    const updatedName = await updateName(newName);
    onUpdateName(updatedName);
  };

  return (
    <form action={submitAction}>
      <p>Your name is: {optimisticName}</p>
      <label>Change Name:</label>
      <input type="text" name="name" disabled={currentName !== optimisticName} />
    </form>
  );
}

2. useFormStatus This is a kind of game-changing hook, with no need for any context API, or props drilling, this hook allows components to access the form state of the Parent component.

import { useFormStatus } from 'react-dom';

function DesignButton() {
  const { pending } = useFormStatus();
  return <button type="submit" disabled={pending}>Submit</button>;
}

3. useOptimistic Another common UI pattern when performing a data mutation is to show the final state optimistically while the async request is underway.

function ChangeName({ currentName, onUpdateName }) {
  const [optimisticName, setOptimisticName] = useOptimistic(currentName);

  const submitAction = async (formData) => {
    const newName = formData.get("name");
    setOptimisticName(newName);
    const updatedName = await updateName(newName);
    onUpdateName(updatedName);
  };

  return (
    <form action={submitAction}>
      <p>Your name is: {optimisticName}</p>
      <label>Change Name:</label>
      <input type="text" name="name" disabled={currentName !== optimisticName} />
    </form>
  );
}

Now, you might be thinking, "Do I need Tanstack Query for my async handlers?" Well, the answer is: it depends on your use case! Let's understand HOW ??

Why and When to Choose React Query for Complex Scenarios?

Advanced Caching: React Query provides robust caching mechanisms that can handle complex data structures and keep your application in sync with the server state effortlessly.

Automatic Background Synchronization: It supports background refetching, polling, and refetching on events like window focus, ensuring the data is always up-to-date. No more stale data ?

Query Invalidations: React Query allows developers to manage when and how your data should be refreshed, ensuring that your UI is always up-to-date without unnecessary re-fetches. ?

Error Handling: It provides a comprehensive approach to handle errors gracefully, making your application more resilient. ?

Conclusion

In the end, I guess you have already got the answer to the question we raised at the beginning - Can React v19 replace Tanstack? ?

It completely depends on our application scale! ?️

For simpler use cases, like fetching API data and managing API states, I would recommend giving React v19's native hooks a try. They are neat, easy to use, and perfect for straightforward scenarios. ?

However, if you are working on a large application and need to handle more complex tasks like caching, revalidating, and synchronizing data with the server, then Tanstack Query is your best buddy! ?‍♂️?‍♀️

In summary:

React v19 hooks: Great for simple API fetching and state management. ?
Tanstack Query: Perfect for handling caching, synchronization, and complex data scenarios. ?
Happy coding! ?✨

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