def request_doi_status_by_batch_id(self, doi_batch_id, data_type='result'):
        """
        This method retrieve the DOI requests status.

        file_name: Used as unique ID to identify a deposit.

        data_type: [contents, result]
            contents - retrieve the XML submited by the publisher
            result - retrieve a XML with the status of the submission
        """

        endpoint = self.get_endpoint('submissionDownload')

        params = {
            'usr': self.api_user,
            'pwd': self.api_key,
            'doi_batch_id': doi_batch_id,
            'type': data_type
        }

        result = self.do_http_request(
            'get',
            endpoint,
            data=params,
            timeout=10,
            custom_header=str(self.etiquette)
        )

        return result