Fetch data from API using promises in react

fetch_data_promise.js

  const [testData,setTestData] = useState({message : "abc"});

  useEffect(() => {
    async function setData(){
      
      fetch('http://localhost:8080/test').then(
        response => { response.json(); }
      ).then(
        response => { setTestData(response); }
      );
   }

  setData();
},[]);