Parallel Queries with useQueries Hook

Illustrate fetching multiple queries in parallel by leveraging the useQueries hook for batched data fetching.

import { useQueries } from 'react-query';
import axios from 'axios';

const fetchUserById = async (userId) => {
  const { data } = await axios.get(`/api/user/${userId}`);
  return data;
};

const fetchProjectById = async (projectId) => {
  const { data } = await axios.get(`/api/project/${projectId}`);
  return data;
};

Defines fetching functions using axios for users and projects by their IDs.

const userAndProjectData = useQueries([
  { queryKey: ['user', 1], queryFn: () => fetchUserById(1) },
  { queryKey: ['project', 2], queryFn: () => fetchProjectById(2) }
]);

Uses the useQueries hook to fetch user and project data in parallel by invoking the defined fetching functions.