Add Forum v2 request logging

send request to forum v2 alongside v1
validate both responses and log info in case of diff

openedx/core/djangoapps/django_comment_common/comment_client/settings.py

@@ -7,3 +7,7 @@
     SERVICE_HOST = 'http://localhost:4567'
 
 PREFIX = SERVICE_HOST + '/api/v1'
+
+# V2 url support for differential logging
+SERVICE_HOST_V2 = 'http://localhost:8000'
+PREFIX_V2 = SERVICE_HOST_V2 + '/api/v2'

openedx/core/djangoapps/django_comment_common/comment_client/utils.py

@@ -8,7 +8,7 @@
 import requests
 from django.utils.translation import get_language
 
-from .settings import SERVICE_HOST as COMMENTS_SERVICE
+from .settings import PREFIX, PREFIX_V2, SERVICE_HOST as COMMENTS_SERVICE
 
 log = logging.getLogger(__name__)
 
@@ -30,6 +30,10 @@ def extract(dic, keys):
         return strip_none({k: dic.get(k) for k in keys})
 
 
+def _get_forum_v2_url(url):
+    return url.replace(PREFIX, PREFIX_V2)
+
+
 def perform_request(method, url, data_or_params=None, raw=False,
                     metric_action=None, metric_tags=None, paged_results=False):
     # To avoid dependency conflict
@@ -71,6 +75,19 @@ def perform_request(method, url, data_or_params=None, raw=False,
         timeout=config.connection_timeout
     )
 
+    if method == 'get':
+        forum_v2_url = _get_forum_v2_url(url)
+        response_v2 = requests.request(
+            method,
+            forum_v2_url,
+            data=data,
+            params=params,
+            headers=headers,
+            timeout=config.connection_timeout
+        )
+        if response_v2 != response:
+            log.error(f"Forum v2 diff for endpoint {url} with params={params}. Expected: {response}. Got: {response_v2}.")
+
     metric_tags.append(f'status_code:{response.status_code}')
     status_code = int(response.status_code)
     if status_code > 200: