<form method="POST" action="/api/import_xlsx_data" enctype="multipart/form-data">
    <input type="file" name="xlsx_file_to_import" accept=".xlsx" required>
    <input id="url" type="HIDDEN" name="url">
    <input type="submit" value="Envoyer">
</form>


<script type="text/javascript">
$('#url').val(currentService);
</script>