fix(creation): create a record with relation only

src/agent_toolkit/forestadmin/agent_toolkit/services/serializers/json_api_deserializer.py

@@ -29,7 +29,7 @@ def deserialize(self, data: DumpedResult, collection: Collection) -> RecordsData
         ret = {}
         data["data"] = cast(Data, data["data"])
 
-        for key, value in data["data"]["attributes"].items():
+        for key, value in data["data"].get("attributes", {}).items():
             if key not in collection.schema["fields"]:
                 raise JsonApiDeserializerException(f"Field {key} doesn't exists in collection {collection.name}.")
             ret[key] = self._deserialize_value(value, cast(Column, collection.schema["fields"][key]))

src/agent_toolkit/tests/services/serializers/test_jsonapi.py

@@ -754,6 +754,24 @@ def test_should_correctly_load_one_to_one_relation(self):
             },
         )
 
+    def test_should_work_if_attribute_not_present(self):
+        deserializer = JsonApiDeserializer(self.datasource)
+
+        request_body = {
+            "data": {
+                "id": "43661dae-97c3-4ea9-bd43-a6d8ac3f4ca7",
+                "type": "Orders",
+                "relationships": {"customer": {"data": {"id": "12", "type": "Persons"}}},
+            }
+        }
+        data = deserializer.deserialize(request_body, self.collection_order)
+        self.assertEqual(
+            data,
+            {
+                "customer": 12,
+            },
+        )
+
 
 class TestJsonApiSerializer(TestJsonApi):
     @classmethod