App.jsx

import React from 'react'

function useStuff() {
  const [data, setData] = React.useState({})
  React.useEffect(() => {
    fetch('https://someapi.com/api/users/')
      .then((response) => setData(response.json()))
      .catch((err) => setData(err))
  }, [])
  return { data, setData }
}

function App() {
  const { data } = useStuff()
  if (data instanceof Error) {
    return <p style={{ color: 'red' }}>Error: {data.message}</p>
  }
  return <div>{JSON.stringify(data, null, 2)}</div>
}