Add SentryGraphQLView from mySkillbox

Improves GraphQL error message logging in Sentry

server/config/urls.py

@@ -10,13 +10,13 @@ from django.urls.converters import IntConverter
 from django.views import defaults as default_views
 from django.views.decorators.csrf import csrf_exempt
 from django_ratelimit.exceptions import Ratelimited
-from graphene_django.views import GraphQLView
 from wagtail import urls as wagtail_urls
 from wagtail.admin import urls as wagtailadmin_urls
 from wagtail.documents import urls as media_library_urls
 
 from vbv_lernwelt.api.directory import list_entities
 from vbv_lernwelt.api.user import get_profile, me_user_view, post_avatar
+from vbv_lernwelt.api.views import SentryGraphQLView
 from vbv_lernwelt.assignment.views import request_assignment_completion_status
 from vbv_lernwelt.core.middleware.auth import django_view_authentication_exempt
 from vbv_lernwelt.core.schema import schema
@@ -237,7 +237,7 @@ urlpatterns = [
     ),
 
     path("server/graphql/",
-         csrf_exempt(GraphQLView.as_view(graphiql=True, schema=schema))),
+         csrf_exempt(SentryGraphQLView.as_view(graphiql=True, schema=schema))),
     # testing and debug
     path('server/raise_error/',
          user_passes_test(lambda u: u.is_superuser, login_url='/login/')(

server/vbv_lernwelt/api/views.py

@@ -0,0 +1,29 @@
+from django.http.request import HttpRequest
+from graphene_django.views import GraphQLView
+from graphql import get_operation_ast, parse
+from sentry_sdk.api import start_transaction
+
+
+# For sentry perfomance monitoring
+# taken from https://jerrynsh.com/how-to-monitor-python-graphql-api-with-sentry/
+class SentryGraphQLView(GraphQLView):
+    def execute_graphql_request(
+        self,
+        request: HttpRequest,
+        data,
+        query,
+        variables,
+        operation_name,
+        show_graphiql,
+    ):
+        """
+        adapted to use the new GraphQL 3.0 syntax, still need to get the operation type,
+        but the code to do this changed significantly, so the above link only explains
+        the 'what' and 'why', but no longer the 'how'
+        """
+        document = parse(query)
+        operation_type = get_operation_ast(document, operation_name).operation
+        with start_transaction(op=str(operation_type), name=operation_name):
+            return super().execute_graphql_request(
+                request, data, query, variables, operation_name, show_graphiql
+            )