diff options
Diffstat (limited to 'oslo_middleware/request_id.py')
| -rw-r--r-- | oslo_middleware/request_id.py | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/oslo_middleware/request_id.py b/oslo_middleware/request_id.py index 31a433b..5716c82 100644 --- a/oslo_middleware/request_id.py +++ b/oslo_middleware/request_id.py @@ -30,11 +30,21 @@ class RequestId(base.ConfigurableMiddleware): request environment. The request ID is also added to API response. """ + # if compat_headers is set, we also return the request_id in those + # headers as well. This allows projects like Nova to adopt + # oslo.middleware without impacting existing users. + compat_headers = [] + @webob.dec.wsgify def __call__(self, req): req_id = context.generate_request_id() req.environ[ENV_REQUEST_ID] = req_id response = req.get_response(self.application) - if HTTP_RESP_HEADER_REQUEST_ID not in response.headers: - response.headers.add(HTTP_RESP_HEADER_REQUEST_ID, req_id) + + return_headers = [HTTP_RESP_HEADER_REQUEST_ID] + return_headers.extend(self.compat_headers) + + for header in return_headers: + if header not in response.headers: + response.headers.add(header, req_id) return response |