Error while fetching data from api in react "Uncaught TypeError: Cannot read properties of undefined"

Question

I'm using a React hook component to fetch data from an api writed in express. It's only working while fetching all the data, trying to fetch any specific value, it crashes.

For example: It's fetching users.users correctly but not users.users.details

react hooks component:

const Api = () => {
   
  const [users, setUsers] = useState([{}]);
  var {username} = useParams();
  var objdetails = useRef();
  
  function FetchApi(nameuser){
    useEffect(() => {
      fetch(`/api/users/${nameuser}/details`)
      .then(res => res.json())
      .then(users => setUsers({users}))
    }, [nameuser])
  } 
  
  FetchApi(username);
  objdetails.current = JSON.stringify(users.users);
  
  
  return(
  <Styledthing>
    <div>
      <h2>User information from Github Api</h2>
      <ul>
        {JSON.stringify(objdetails.current)}
      </ul>
    </div>
  </Styledthing>
  );
    
}

export default Api;

api in express:

async pesquisarDetails (request,response){
    let {username} = request.params
    var details;

    await axios.get('https://api.github.com/users/' + username).then(function(resposta){
        details = resposta.data.login;
 
        return response.json({details});
    }).catch((err) => {
        response.json({ msg:"User not found" + err + username });
    })
}

Here's what happens in my browser(chrome) console:

api.js:25 Uncaught TypeError: Cannot read properties of undefined (reading 'details')

Answer 1

instead of:

objdetails.current = JSON.stringify(users.users.details);

try this:

objdetails.current = JSON.stringify(users.users?.details);