rest_api.py 文件源码

def do_request_async(self, url, method='GET', headers=None, payload=None,
                       deadline=None, callback=None):
    """Issue one HTTP request.

    It performs async retries using tasklets.

    Args:
      url: the url to fetch.
      method: the method in which to fetch.
      headers: the http headers.
      payload: the data to submit in the fetch.
      deadline: the deadline in which to make the call.
      callback: the call to make once completed.

    Yields:
      The async fetch of the url.
    """
    retry_wrapper = api_utils._RetryWrapper(
        self.retry_params,
        retriable_exceptions=api_utils._RETRIABLE_EXCEPTIONS,
        should_retry=api_utils._should_retry)
    resp = yield retry_wrapper.run(
        self.urlfetch_async,
        url=url,
        method=method,
        headers=headers,
        payload=payload,
        deadline=deadline,
        callback=callback,
        follow_redirects=False)
    raise ndb.Return((resp.status_code, resp.headers, resp.content))