Handle media types application/yaml and application/json

drf_spectacular/renderers.py

@@ -1,14 +1,37 @@
 import yaml
-from rest_framework.renderers import OpenAPIRenderer
+import logging
+from rest_framework.renderers import JSONOpenAPIRenderer, OpenAPIRenderer
+#from drf_spectacular.plumbing import warn
+
+from rest_framework.exceptions import ErrorDetail
+
+logger = logging.getLogger(__name__)
 
 
 class NoAliasOpenAPIRenderer(OpenAPIRenderer):
     """ Remove this temp fix once DRF 3.11 is no longer supported """
 
     def render(self, data, media_type=None, renderer_context=None):
+        detail = data.get('detail')
+        if detail and isinstance(detail, ErrorDetail):
+            if not media_type:
+                media_type = 'Unknown'
+            logger.error(f'media type {media_type}: Failure {detail}')
+            return False
+
         # disable yaml advanced feature 'alias' for clean, portable, and readable output
         class Dumper(yaml.SafeDumper):
             def ignore_aliases(self, data):
                 return True
 
         return yaml.dump(data, default_flow_style=False, sort_keys=False, Dumper=Dumper).encode('utf-8')
+
+
+class ApplicationYamlOpenAPIRenderer(NoAliasOpenAPIRenderer):
+    media_type = 'application/yaml'
+    format = 'yaml'
+
+
+class ApplicationJsonOpenAPIRenderer(JSONOpenAPIRenderer):
+    media_type = 'application/json'
+    format = 'json'

drf_spectacular/views.py

@@ -4,7 +4,11 @@
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
-from drf_spectacular.renderers import NoAliasOpenAPIRenderer
+from drf_spectacular.renderers import (
+    ApplicationYamlOpenAPIRenderer,
+    ApplicationJsonOpenAPIRenderer,
+    NoAliasOpenAPIRenderer,
+)
 from drf_spectacular.settings import spectacular_settings
 from drf_spectacular.types import OpenApiTypes
 from drf_spectacular.utils import extend_schema
@@ -22,7 +26,12 @@ class SpectacularAPIView(APIView):
     - YAML: application/vnd.oai.openapi
     - JSON: application/vnd.oai.openapi+json
     """
-    renderer_classes = [NoAliasOpenAPIRenderer, JSONOpenAPIRenderer]
+    renderer_classes = [
+        NoAliasOpenAPIRenderer,
+        JSONOpenAPIRenderer,
+        ApplicationYamlOpenAPIRenderer,
+        ApplicationJsonOpenAPIRenderer,
+    ]
     permission_classes = spectacular_settings.SERVE_PERMISSIONS
 
     generator_class = spectacular_settings.DEFAULT_GENERATOR_CLASS