## Update vector store file attributes

**post** `/vector_stores/{vector_store_id}/files/{file_id}`

Update attributes on a vector store file.

### Path Parameters

- `vector_store_id: string`

- `file_id: string`

### Body Parameters

- `attributes: map[string or number or boolean] or null`

  Set of 16 key-value pairs that can be attached to an object. This can be
  useful for storing additional information about the object in a structured
  format, and querying for objects via API or the dashboard. Keys are strings
  with a maximum length of 64 characters. Values are strings with a maximum
  length of 512 characters, booleans, or numbers.

  - `string`

  - `number`

  - `boolean`

### Returns

- `VectorStoreFile object { id, created_at, last_error, 6 more }`

  A list of files attached to a vector store.

  - `id: string`

    The identifier, which can be referenced in API endpoints.

  - `created_at: number`

    The Unix timestamp (in seconds) for when the vector store file was created.

  - `last_error: object { code, message }  or null`

    The last error associated with this vector store file. Will be `null` if there are no errors.

    - `code: "server_error" or "unsupported_file" or "invalid_file"`

      One of `server_error`, `unsupported_file`, or `invalid_file`.

      - `"server_error"`

      - `"unsupported_file"`

      - `"invalid_file"`

    - `message: string`

      A human-readable description of the error.

  - `object: "vector_store.file"`

    The object type, which is always `vector_store.file`.

    - `"vector_store.file"`

  - `status: "in_progress" or "completed" or "cancelled" or "failed"`

    The status of the vector store file, which can be either `in_progress`, `completed`, `cancelled`, or `failed`. The status `completed` indicates that the vector store file is ready for use.

    - `"in_progress"`

    - `"completed"`

    - `"cancelled"`

    - `"failed"`

  - `usage_bytes: number`

    The total vector store usage in bytes. Note that this may be different from the original file size.

  - `vector_store_id: string`

    The ID of the [vector store](/api/reference/resources/vector_stores) that the [File](/api/reference/resources/files) is attached to.

  - `attributes: optional map[string or number or boolean] or null`

    Set of 16 key-value pairs that can be attached to an object. This can be
    useful for storing additional information about the object in a structured
    format, and querying for objects via API or the dashboard. Keys are strings
    with a maximum length of 64 characters. Values are strings with a maximum
    length of 512 characters, booleans, or numbers.

    - `string`

    - `number`

    - `boolean`

  - `chunking_strategy: optional StaticFileChunkingStrategyObject or OtherFileChunkingStrategyObject`

    The strategy used to chunk the file.

    - `StaticFileChunkingStrategyObject object { static, type }`

      - `static: StaticFileChunkingStrategy`

        - `chunk_overlap_tokens: number`

          The number of tokens that overlap between chunks. The default value is `400`.

          Note that the overlap must not exceed half of `max_chunk_size_tokens`.

        - `max_chunk_size_tokens: number`

          The maximum number of tokens in each chunk. The default value is `800`. The minimum value is `100` and the maximum value is `4096`.

      - `type: "static"`

        Always `static`.

        - `"static"`

    - `OtherFileChunkingStrategyObject object { type }`

      This is returned when the chunking strategy is unknown. Typically, this is because the file was indexed before the `chunking_strategy` concept was introduced in the API.

      - `type: "other"`

        Always `other`.

        - `"other"`

### Example

```http
curl https://api.openai.com/v1/vector_stores/$VECTOR_STORE_ID/files/$FILE_ID \
    -H 'Content-Type: application/json' \
    -H 'OpenAI-Beta: assistants=v2' \
    -H "Authorization: Bearer $OPENAI_API_KEY" \
    -d '{
          "attributes": {
            "foo": "string"
          }
        }'
```

#### Response

```json
{
  "id": "id",
  "created_at": 0,
  "last_error": {
    "code": "server_error",
    "message": "message"
  },
  "object": "vector_store.file",
  "status": "in_progress",
  "usage_bytes": 0,
  "vector_store_id": "vector_store_id",
  "attributes": {
    "foo": "string"
  },
  "chunking_strategy": {
    "static": {
      "chunk_overlap_tokens": 0,
      "max_chunk_size_tokens": 100
    },
    "type": "static"
  }
}
```

### Example

```http
curl https://api.openai.com/v1/vector_stores/vs_abc123/files/file-abc123 \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"attributes": {"key1": "value1", "key2": 2}}'
```

#### Response

```json
{
  "id": "file-abc123",
  "object": "vector_store.file",
  "usage_bytes": 1234,
  "created_at": 1699061776,
  "vector_store_id": "vs_abc123",
  "status": "completed",
  "last_error": null,
  "chunking_strategy": {
    "type": "static",
    "static": {
      "max_chunk_size_tokens": 800,
      "chunk_overlap_tokens": 400
    }
  },
  "attributes": {"key1": "value1", "key2": 2}
}
```