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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Issue creating objectstorage access key without an expiry","articleBody":"Hello,\n\nI want to create a access key without an expiry. But I keep running into an pydantic problem.\n\nI am running this code:\n\n```python\n    config = Configuration()\n    client = DefaultApi(config)\n    name = \"abc\"\n    project_id = os.getenv(\"OS_PROJECT_NAME\")\n    cred_grp_resp = client.create_credentials_group(\n        project_id, \"eu01\", CreateCredentialsGroupPayload(displayName=name)\n    )\n    acc_key_resp = client.create_access_key(\n        project_id,\n        \"eu01\",\n        CreateAccessKeyPayload(),\n        cred_grp_resp.credentials_group.credentials_group_id,\n    )\n```\n\nThe error I am getting is:\n\n```\n  File \"/app/pylfc/s3.py\", line 196, in create_bucket_credentials\n    acc_key_resp = client.create_access_key(\n  File \"/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_validate_call.py\", line 39, in wrapper_function\n    return wrapper(*args, **kwargs)\n  File \"/usr/local/lib/python3.10/dist-packages/pydantic/_internal/_validate_call.py\", line 136, in __call__\n    res = self.__pydantic_validator__.validate_python(pydantic_core.ArgsKwargs(args, kwargs))\n  File \"/usr/local/lib/python3.10/dist-packages/stackit/objectstorage/api/default_api.py\", line 139, in create_access_key\n    return self.api_client.response_deserialize(\n  File \"/usr/local/lib/python3.10/dist-packages/stackit/objectstorage/api_client.py\", line 275, in response_deserialize\n    return_data = self.deserialize(response_text, response_type, content_type)\n  File \"/usr/local/lib/python3.10/dist-packages/stackit/objectstorage/api_client.py\", line 363, in deserialize\n    return self.__deserialize(data, response_type)\n  File \"/usr/local/lib/python3.10/dist-packages/stackit/objectstorage/api_client.py\", line 408, in __deserialize\n    return self.__deserialize_model(data, klass)\n  File \"/usr/local/lib/python3.10/dist-packages/stackit/objectstorage/api_client.py\", line 626, in __deserialize_model\n    return klass.from_dict(data)\n  File \"/usr/local/lib/python3.10/dist-packages/stackit/objectstorage/models/create_access_key_response.py\", line 87, in from_dict\n    _obj = cls.model_validate(\n  File \"/usr/local/lib/python3.10/dist-packages/pydantic/main.py\", line 693, in model_validate\n    return cls.__pydantic_validator__.validate_python(\npydantic_core._pydantic_core.ValidationError: 1 validation error for CreateAccessKeyResponse\nexpires\n  Input should be a valid string [type=string_type, input_value=None, input_type=NoneType]\n    For further information visit https://errors.pydantic.dev/2.11/v/string_type\n```\n\nI seems the \"CreateAccessKeyPayload\" accepts an \"None\" expiry date, which is allowed looing at the api docs, but the CreateAccessKeyResponse requires it the field to be a string and not None.\n\nUsing the same code but setting an \"expires\" allows me to create the key:\n\n```python\n    acc_key_resp = client.create_access_key(\n        project_id,\n        \"eu01\",\n        CreateAccessKeyPayload(expires=datetime(2026, 1, 1)),\n        cred_grp_resp.credentials_group.credentials_group_id,\n    )\n```\n\nAsking for a fix. Kind regards, Sebastian","author":{"url":"https://github.com/sebastianelsner","@type":"Person","name":"sebastianelsner"},"datePublished":"2025-03-28T17:56:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/809/stackit-sdk-python/issues/809"}