Fix DRF Integration Body Processing and API Failure Issues

.gitignore

@@ -178,3 +178,6 @@ contrib
 .idea
 
 .env
+
+# Claude local settings
+Claude.local.md

mcp_server/djangomcp.py

@@ -17,6 +17,7 @@
 from mcp.server.streamable_http_manager import StreamableHTTPSessionManager
 from rest_framework.mixins import CreateModelMixin, UpdateModelMixin, DestroyModelMixin, ListModelMixin
 from rest_framework.serializers import Serializer
+from rest_framework.test import APIRequestFactory
 from starlette.datastructures import Headers
 from starlette.types import Scope, Receive, Send
 
@@ -460,39 +461,35 @@ def init():
 
 class _DRFRequestWrapper(HttpRequest):
 
-    def __init__(self, mcp_server, mcp_request, method, body_json=None, id=None):
-        super().__init__()
-        self._serialized_body = json.dumps(body_json).encode("utf-8") if body_json else b''
-        self.method = method
-        self.content_type = "application/json"
-        self.META = {
-            'CONTENT_TYPE': 'application/json',
-            'HTTP_ACCEPT': 'application/json',
-            'CONTENT_LENGTH': len(self._serialized_body)
-        }
-
-        self._stream = BytesIO(self._serialized_body)
-        self._read_started = False
-        self.user = mcp_request.user
-        self.session = mcp_request.session
-        self.original_request = mcp_request
-        self.path = f'/_djangomcpserver/{mcp_server.name}'
+    def __new__(cls, mcp_server, mcp_request, method, body_json=None, id=None):
+        # Using APIRequestFactory ensures that all the attributes DRF is expecting are correctly set on the HttpRequest
+        factory = APIRequestFactory()
+        path = f'/_djangomcpserver/{mcp_server.name}'
         if id:
-            self.path += f"/{id}"
+            path += f"/{id}"
+
+        if method == 'POST':
+            request = factory.post(path, body_json, format='json')
+        elif method == 'PUT':
+            request = factory.put(path, body_json, format='json')
+        elif method == 'DELETE':
+            request = factory.delete(path)
+        elif method == 'GET':
+            request = factory.get(path)
+        else:
+            raise ValueError(f"Unsupported HTTP method: {method}")
 
+        if mcp_request.user:
+            request.user = mcp_request.user
+        if mcp_request.session:
+            request.session = mcp_request.session
+
+        return request
 
 class BaseAPIViewCallerTool:
     view: Type["APIView"]
 
-    @staticmethod
-    def _patched_initialize_request(self, request, *args, **kwargs):
-        original_request = request.original_request
-        original_request.request = request
-        original_request.method = request.method
-        return original_request
-
     def __init__(self, view_class, **kwargs):
-        view_class.initialize_request = self._patched_initialize_request
         self.view = view_class.as_view(**kwargs)