{"record":{"id":"d6da42cbc80039df","repo":"openai/openai-python","slug":"expected-a-non-empty-value-for-file-id-but-recei-d6da42","errorCode":null,"errorMessage":"Expected a non-empty value for `file_id` but received {file_id!r}","messagePattern":"Expected a non-empty value for `file_id` but received (.+?)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"src/openai/resources/vector_stores/files.py","lineNumber":145,"sourceCode":"        extra_body: Body | None = None,\n        timeout: float | httpx2.Timeout | None | NotGiven = not_given,\n    ) -> VectorStoreFile:\n        \"\"\"\n        Retrieves a vector store file.\n\n        Args:\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 vector_store_id:\n            raise ValueError(f\"Expected a non-empty value for `vector_store_id` but received {vector_store_id!r}\")\n        if not file_id:\n            raise ValueError(f\"Expected a non-empty value for `file_id` but received {file_id!r}\")\n        extra_headers = {\"OpenAI-Beta\": \"assistants=v2\", **(extra_headers or {})}\n        return self._get(\n            path_template(\n                \"/vector_stores/{vector_store_id}/files/{file_id}\", vector_store_id=vector_store_id, file_id=file_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                security={\"bearer_auth\": True},\n            ),\n            cast_to=VectorStoreFile,\n        )\n\n    def update(\n        self,\n        file_id: str,","sourceCodeStart":127,"sourceCodeEnd":163,"githubUrl":"https://github.com/openai/openai-python/blob/9917c6e28e66e90e1227b3d223c06a8c5441515a/src/openai/resources/vector_stores/files.py#L127-L163","documentation":"Retrieving a vector store file requires a non-empty `file_id`. The SDK validates it before the GET to `/vector_stores/{vector_store_id}/files/{file_id}` and raises ValueError for falsy values, since the path segment would be empty.","triggerScenarios":"Calling `client.vector_stores.files.retrieve(vector_store_id=..., file_id=\"\" or None)`, e.g. iterating over a list where a file entry has no id, or using a `file-xxx` string that was never assigned.","commonSituations":"Uploading a file but not capturing `file_obj.id`, reading ids from parsed JSON with a missing key, or passing a `File` object instead of its id string.","solutions":["Capture the id at upload: `f = client.files.create(...)` then pass `f.id`","Guard loops: skip entries without an id before calling retrieve","Confirm you are passing the string id (starts with `file-`), not a file object"],"exampleFix":"# before\nclient.vector_stores.files.retrieve(vector_store_id=vs_id, file_id=None)\n\n# after\nup = client.files.create(file=open(\"doc.pdf\", \"rb\"), purpose=\"assistants\")\nclient.vector_stores.files.retrieve(vector_store_id=vs_id, file_id=up.id)","handlingStrategy":"validation","validationCode":"if not file_id:\n    raise ValueError(f\"file_id is empty: {file_id!r}\")\nf = client.vector_stores.files.retrieve(vector_store_id=vs_id, file_id=file_id)","typeGuard":"from openai.types.vector_stores import VectorStoreFile\n\ndef valid_file_id(f: object) -> bool:\n    return isinstance(f, VectorStoreFile) and bool(f.id) or (isinstance(f, str) and bool(f))","tryCatchPattern":"try:\n    f = client.vector_stores.files.retrieve(vector_store_id=vs_id, file_id=file_id)\nexcept ValueError as e:\n    logger.error(\"Invalid file_id: %s\", e)\n    raise","preventionTips":["Always use file.id from upload/list results","Skip entries without ids when iterating","Log ids at upload time for later retrieval"],"tags":["vector-stores","files","retrieve","validation","valueerror"],"backgroundTag":"empty-required-parameter","analyzedSha":"9917c6e28e66e90e1227b3d223c06a8c5441515a","analyzedAt":"2026-08-28T11:46:34.183Z","schemaVersion":2},"datasetVersion":"2026-08-28T16:17:29.566Z"}