{"record":{"id":"881e5045636284a8","repo":"openai/openai-python","slug":"expected-a-non-empty-value-for-item-id-but-recei","errorCode":null,"errorMessage":"Expected a non-empty value for `item_id` but received {item_id!r}","messagePattern":"Expected a non-empty value for `item_id` but received (.+?)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"src/openai/resources/conversations/items.py","lineNumber":129,"sourceCode":"        Get a single item from a conversation with the given IDs.\n\n        Args:\n          include: Additional fields to include in the response. See the `include` parameter for\n              [listing Conversation items above](https://platform.openai.com/docs/api-reference/conversations/list-items#conversations_list_items-include)\n              for more information.\n\n          extra_headers: Send extra headers\n\n          extra_query: Add additional query parameters to the request\n\n          extra_body: Add additional JSON properties to the request\n\n          timeout: Override the client-level default timeout for this request, in seconds\n        \"\"\"\n        if not conversation_id:\n            raise ValueError(f\"Expected a non-empty value for `conversation_id` but received {conversation_id!r}\")\n        if not item_id:\n            raise ValueError(f\"Expected a non-empty value for `item_id` but received {item_id!r}\")\n        return cast(\n            ConversationItem,\n            self._get(\n                path_template(\n                    \"/conversations/{conversation_id}/items/{item_id}\", conversation_id=conversation_id, item_id=item_id\n                ),\n                options=make_request_options(\n                    extra_headers=extra_headers,\n                    extra_query=extra_query,\n                    extra_body=extra_body,\n                    timeout=timeout,\n                    query=maybe_transform({\"include\": include}, item_retrieve_params.ItemRetrieveParams),\n                    security={\"bearer_auth\": True},\n                ),\n                cast_to=cast(Any, ConversationItem),  # Union types cannot be passed in as arguments in the type system\n            ),\n        )\n","sourceCodeStart":111,"sourceCodeEnd":147,"githubUrl":"https://github.com/openai/openai-python/blob/9917c6e28e66e90e1227b3d223c06a8c5441515a/src/openai/resources/conversations/items.py#L111-L147","documentation":"In the synchronous Conversation items retrieve(), item_id is the second required path segment of /conversations/{conversation_id}/items/{item_id}. This ValueError is raised when conversation_id passed its check but item_id is falsy. It is purely client-side validation performed before the GET request.","triggerScenarios":"Calling client.conversations.items.retrieve(conversation_id='conv_abc', item_id='') or with item_id=None (e.g. iterating item ids where one entry is empty).","commonSituations":"Parsing item ids from webhook payloads or list results where a field is absent, using .get('id') on a dict without the key, or off-by-one slicing that yields None.","solutions":["Use the id field from items.list() or create() responses directly","Guard against missing keys with explicit checks when extracting ids from payloads","Skip or log empty item ids in loops"],"exampleFix":"# before\niid = payload.get(\"item_id\")  # may be None\nclient.conversations.items.retrieve(conversation_id=conv, item_id=iid)\n\n# after\niid = payload[\"item_id\"]\nif not iid:\n    raise ValueError(f\"payload missing item_id: {payload}\")\nclient.conversations.items.retrieve(conversation_id=conv, item_id=iid)","handlingStrategy":"validation","validationCode":"iid = payload.get(\"item_id\")\nif not iid:\n    raise KeyError(\"payload missing item_id\")","typeGuard":"def is_valid_item_id(v: object) -> bool:\n    return isinstance(v, str) and v.startswith(\"item_\") and len(v) > len(\"item_\")","tryCatchPattern":"try:\n    client.conversations.items.retrieve(conversation_id=cid, item_id=iid)\nexcept ValueError as e:\n    if \"item_id\" in str(e):\n        logger.error(\"item id missing from upstream data: %r\", iid)","preventionTips":["Use required-key access (payload['item_id']) over .get for mandatory ids","Log raw payloads when ids are missing to fix producers"],"tags":["openai","conversations","items","retrieve","item-id","valueerror"],"backgroundTag":"missing-required-path-parameter","analyzedSha":"9917c6e28e66e90e1227b3d223c06a8c5441515a","analyzedAt":"2026-08-28T11:46:34.183Z","schemaVersion":2},"datasetVersion":"2026-08-28T16:17:29.566Z"}