json_iterator.py

def json_iterator(url, method='GET', content=None, credentials=None, datanodename='data'):
    """
    Rufe JSON-Daten ab.

    Es wird die seitenweise Darstellung von gaetk.BasicHandler.paginate unterstützt.
    """

    if content is None:
        content = {}

    while True:
        try:
            response = huTools.http.fetch_json2xx(url,
                                                  method=method,
                                                  content=content,
                                                  credentials=credentials)
        except huTools.http.exceptions.WrongStatusCode:
            break

        for element in response[datanodename]:
            yield element

        if not response['more_objects']:
            break
        else:
            cursor_information = response.get('next_qs', '')
            tmp = cgi.parse_qs(cursor_information)
            for key, values in tmp.items():
                content[key] = values[0]