Have you used React Toolkit — did you use RTK Query from it? Are you familiar with Tanstack Query?

Yes, I have used Redux Toolkit in projects, including RTK Query for efficient management of asynchronous requests and data caching. RTK Query significantly simplifies working with server data by automatically handling loading, errors, and updates.

I am also familiar with Tanstack Query (formerly React Query). This library manages server state and offers powerful features for caching, synchronization, and data updating. Unlike RTK Query, Tanstack Query does not depend on Redux and can be used independently.

Example of using RTK Query:

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react';

const api = createApi({
  reducerPath: 'api',
  baseQuery: fetchBaseQuery({ baseUrl: '/api' }),
  endpoints: (build) => ({
    getUser: build.query({
      query: (id) => `user/${id}`,
    }),
  }),
});

export const { useGetUserQuery } = api;

Example of using Tanstack Query:

import { useQuery } from '@tanstack/react-query';

function fetchUser(id) {
  return fetch(`/api/user/${id}`).then(res => res.json());
}

function User({ id }) {
  const { data, error, isLoading } = useQuery(['user', id], () => fetchUser(id));

  if (isLoading) return 'Loading...';
  if (error) return 'Error!';

  return <div>{data.name}</div>;
}