[Fixed] Error: tanstack_react_query useQuery is not a function – Javascript

by
Maya Patel
javascript next.js tanstackreact-query

Quick Fix: In order to resolve the error "tanstack_react_query useQuery is not a function", ensure that you’ve imported the correct module and method. Verify that you’ve included the "useClient" hook at the top of your server page. Additionally, if you’re using SSR, refer to the official Tanstack documentation provided in the link. It offers two implementation versions: one with "Page" and another with "App Router".

The Problem:

I’m facing an error while attempting to use useQuery from @tanstack/react-query for data fetching in my Next.js application. The error message I’m encountering is Error: (0 , _tanstack_react_query__WEBPACK_IMPORTED_MODULE_3__.useQuery) is not a function. Can you help me identify the issue and provide a solution?

The Solutions:

Solution 1: Use “use client” at the top on Server page

When using Server Side Rendering (SSR) with @tanstack/react-query, you need to include the "use client" hook at the top of your server page. This hook initializes the React Query client on the server, allowing you to perform data fetching and use the query results in your server-rendered components.

Here’s an example of how to use the "use client" hook in your server-side code:

import { useClient } from "@tanstack/react-query";

export default function IndexPage() {
  useClient(); // Initialize the React Query client on the server

  // Fetch data and render the page
  // ...

  return (
    <div>
      {/* Render your page content here */}
    </div>
  );
}

By including the "use client" hook, you ensure that the React Query client is properly initialized on the server, enabling you to utilize its features, such as data fetching and caching, in your server-side rendered components.

Q&A

In React Query, error thrown is useQuery not a function, What’s the issue?

Import "use client"; at the top of the NodeJS page file.

Is there a guidance to follow when dealing with the error?

Yes, Refer to Tanstack’s official documentation for handling SSR with use client.

Video Explanation:

The following video, titled "Drag and Drop in React with React Query and react-beautiful-dnd ...", provides additional insights and in-depth exploration related to the topics discussed in this post.

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