Return 404 on API requests other than GET

- Other request methods need love too!

InvenTree/InvenTree/api.py

@@ -59,14 +59,39 @@ class NotFoundView(AjaxView):
 
     permission_classes = [permissions.AllowAny]
 
-    def get(self, request, *args, **kwargs):
-        """Process an `not found` event on the API."""
-        data = {
-            'details': _('API endpoint not found'),
-            'url': request.build_absolute_uri(),
-        }
+    def not_found(self, request):
+        """Return a 404 error"""
+        return JsonResponse(
+            {
+                'detail': _('API endpoint not found'),
+                'url': request.build_absolute_uri(),
+            },
+            status=404
+        )
 
-        return JsonResponse(data, status=404)
+    def options(self, request, *args, **kwargs):
+        """Return 404"""
+        return self.not_found(request)
+
+    def get(self, request, *args, **kwargs):
+        """Return 404"""
+        return self.not_found(request)
+
+    def post(self, request, *args, **kwargs):
+        """Return 404"""
+        return self.not_found(request)
+
+    def patch(self, request, *args, **kwargs):
+        """Return 404"""
+        return self.not_found(request)
+
+    def put(self, request, *args, **kwargs):
+        """Return 404"""
+        return self.not_found(request)
+
+    def delete(self, request, *args, **kwargs):
+        """Return 404"""
+        return self.not_found(request)
 
 
 class BulkDeleteMixin: