Function handleSubmit

frontend/src/app/Inventory/UploadModal.tsx:17–40

()

    const [error, hasError] = React.useState<boolean>(false);

    function handleSubmit() {
        if (fileInput.current && fileInput.current.files) {
            const file = fileInput.current.files[0];
            if (!file) {
                return;
            }
            const formData = new FormData();
            formData.append('file', file, file.name);

            setLoading(true);
            upload(formData)
                .then(() => {
                    alertSuccess({ message: 'Items successfully uploaded.' });
                    fetchItems();
                    setLoading(false);
                    hideModal();
                    hasError(false);
                })
                .catch(err => {
                    hasError(true);
                    setLoading(false);
                });
        }
    }

    const errorMsg = () => (
        <Alert type="error"