From 3e13be321ffd2b9c4d6421ee2478ada8e18e3ece Mon Sep 17 00:00:00 2001
From: Rohit Reddy Abbadi <tiholic@users.noreply.github.com>
Date: Sun, 26 Sep 2021 02:14:00 +0530
Subject: [PATCH] add required fields on paginator schemas

`required: [count, responses]` or `required: [responses]` added to schema returned by pagination classes
 to specify which fields are required on a paginated response so that client code generators can add necessary
 validations/enable null-safe implementations.
---
 rest_framework/pagination.py | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/rest_framework/pagination.py b/rest_framework/pagination.py
index dc120d8e8..081b97756 100644
--- a/rest_framework/pagination.py
+++ b/rest_framework/pagination.py
@@ -253,6 +253,10 @@ class PageNumberPagination(BasePagination):
                 },
                 'results': schema,
             },
+            'required': [
+                'count',
+                'results',
+            ],
         }
 
     def get_page_size(self, request):
@@ -426,6 +430,10 @@ class LimitOffsetPagination(BasePagination):
                 },
                 'results': schema,
             },
+            'required': [
+                'count',
+                'results',
+            ],
         }
 
     def get_limit(self, request):
@@ -911,7 +919,10 @@ class CursorPagination(BasePagination):
                     'nullable': True,
                 },
                 'results': schema,
-            },
+            },,
+            'required': [
+                'results',
+            ],
         }
 
     def get_html_context(self):