feat: allow specifying custom page size for course list api (#37815)

cms/djangoapps/contentstore/rest_api/v2/views/home.py

@@ -15,6 +15,7 @@ from cms.djangoapps.contentstore.rest_api.v2.serializers import CourseHomeTabSer
 
 class HomePageCoursesPaginator(PageNumberPagination):
     """Custom paginator for the home page courses view version 2."""
+    page_size_query_param = 'page_size'
 
     def get_paginated_response(self, data):
         """Return a paginated style `Response` object for the given output data."""
@@ -77,6 +78,11 @@ class HomePageCoursesViewV2(APIView):
                 apidocs.ParameterLocation.QUERY,
                 description="Query param to paginate the courses",
             ),
+            apidocs.string_parameter(
+                "page_size",
+                apidocs.ParameterLocation.QUERY,
+                description="Query param to set page size",
+            ),
         ],
         responses={
             200: CourseHomeTabSerializerV2,
@@ -96,6 +102,7 @@ class HomePageCoursesViewV2(APIView):
             GET /api/contentstore/v2/home/courses?active_only=true
             GET /api/contentstore/v2/home/courses?archived_only=true
             GET /api/contentstore/v2/home/courses?page=2
+            GET /api/contentstore/v2/home/courses?page_size=20
 
         **Response Values**