def post_zapp(self, data, response_dict=None, content_length=None,
                  response_body_buffer=None):
        return self._retry(None, _post_job, data,
                           response_dict=response_dict,
                           content_type='application/x-gzip',
                           content_length=content_length,
                           response_body_buffer=response_body_buffer)