Merge pull request #4006 from mochawich/patch-1

Reorder initializing the view

rest_framework/views.py

@@ -372,11 +372,6 @@ class APIView(View):
         """
         self.format_kwarg = self.get_format_suffix(**kwargs)
 
-        # Ensure that the incoming request is permitted
-        self.perform_authentication(request)
-        self.check_permissions(request)
-        self.check_throttles(request)
-
         # Perform content negotiation and store the accepted info on the request
         neg = self.perform_content_negotiation(request)
         request.accepted_renderer, request.accepted_media_type = neg
@@ -385,6 +380,11 @@ class APIView(View):
         version, scheme = self.determine_version(request, *args, **kwargs)
         request.version, request.versioning_scheme = version, scheme
 
+        # Ensure that the incoming request is permitted
+        self.perform_authentication(request)
+        self.check_permissions(request)
+        self.check_throttles(request)
+
     def finalize_response(self, request, response, *args, **kwargs):
         """
         Returns the final response object.