perf: use read replica or default

enterprise/api/v1/views/enterprise_course_enrollment.py

@@ -13,6 +13,12 @@
 from enterprise.api.v1 import serializers
 from enterprise.api.v1.views.base_views import EnterpriseReadWriteModelViewSet
 
+try:
+    from common.djangoapps.util.query import read_replica_or_default
+except ImportError:
+    def read_replica_or_default():
+        return None
+
 
 class PaginatorWithOptimizedCount(Paginator):
     """
@@ -67,6 +73,12 @@ class EnterpriseCourseEnrollmentViewSet(EnterpriseReadWriteModelViewSet):
 
     pagination_class = EnterpriseCourseEnrollmentPagination
 
+    def get_queryset(self):
+        queryset = super().get_queryset()
+        if self.request.method == 'GET':
+            queryset = queryset.using(read_replica_or_default())
+        return queryset
+
     def get_serializer_class(self):
         """
         Use a special serializer for any requests that aren't read-only.