const [userDetails, setUserDetails] = useState();
const { user } = useContext(AuthContext);
  useEffect(() => {
    firebase
      .firestore()
      .collection("users")
      .get()
      .then((res) => {
        res.forEach((doc) => {
          setUserDetails(doc.data());
        });
      });
  }, []);

This is my code when I add .where("id", "==", user.id) extra code is not working

const { user } = useContext(AuthContext);
  useEffect(() => {
    firebase
      .firestore()
      .collection("users")
      .where("id", "==", user.id)
      .get()
      .then((res) => {
        res.forEach((doc) => {
          setUserDetails(doc.data());
        });
      });
  }, []);

anybody can tell me whats the problam is?