const [data, setData] = useState(null);
const [loading, setLoading] = useState(false);
const [error, setError] = useState(null);

const loadData = async () => {
    setLoading(true);
    setError(null);

    try {
        const response = await fetch("/api/items");
        const result = await response.json();
        setData(result);
    } catch (err) {
        setError(err.message);
    } finally {
        setLoading(false);
    }
};