Closes #5190: Add a REST API endpoint for content types

netbox/extras/api/serializers.py

@@ -339,3 +339,20 @@ class ObjectChangeSerializer(serializers.ModelSerializer):
         data = serializer(obj.changed_object, context=context).data
 
         return data
+
+
+#
+# ContentTypes
+#
+
+class ContentTypeSerializer(serializers.ModelSerializer):
+    url = serializers.HyperlinkedIdentityField(view_name='extras-api:contenttype-detail')
+    display_name = serializers.SerializerMethodField()
+
+    class Meta:
+        model = ContentType
+        fields = ['id', 'url', 'app_label', 'model', 'display_name']
+
+    @swagger_serializer_method(serializer_or_field=serializers.CharField)
+    def get_display_name(self, obj):
+        return obj.app_labeled_name