雰囲気.js

const getImageUrl = async () => {
  const response1 = await fetch('https://example.com');
  const data1 = await response1.json();
  const response2 = await fetch(data1.url);
  const data2 = await response2.json();
  return data2
};

const App = () => {
  const [data, setData] = useState(null);
  useEffect(() => {
    getImageUrl().then((data) => {
      setData(data);
    });
  }, []);
  
  // ...
}