Claude Platform Docs

获取文件元数据

files.retrieve_metadata(file_id, **kwargs) -> FileMetadata
GET/v1/files/{file_id}

获取文件元数据

Parameters
file_id: String⁠Path parameter

ID of the File.

workspace_id: String⁠Header parameter

Optional header to select the Workspace for this request. The value is a Workspace ID (for example, wrkspc_011CZkZaBF1tNoB5wlCeusgy).

Only needed for credentials that can act on more than one Workspace. A credential that belongs to a specific Workspace may omit it; if sent, it must match that Workspace.

Returns
class FileMetadata { type: :file, id, created_at, 5 more }
type: :file

Object type.

For files, this is always "file".

id: String

Unique object identifier.

The format and length of IDs may change over time.

created_at: Time

RFC 3339 datetime string representing when the file was created.

formatdate-time
filename: String

Original filename of the uploaded file.

minLength1
maxLength500
mime_type: String

MIME type of the file.

minLength1
maxLength255
size_bytes: Integer

Size of the file in bytes.

minimum0
downloadable: bool

Whether the file can be downloaded.

expires_at: Time

RFC 3339 datetime string representing when the file will expire and become unavailable for download. Null if the file does not expire. For files uploaded with expires_in_seconds, this is the upload time plus that value.

formatdate-time
获取文件元数据
require "anthropic"

anthropic = Anthropic::Client.new(api_key: "my-anthropic-api-key")

file_metadata = anthropic.files.retrieve_metadata("file_id")

puts(file_metadata)
Returns Examples
Response 200
{
  "id": "file_011CNha8iCJcU1wXNR6q4V8w",
  "created_at": "2025-04-15T18:37:24.100435Z",
  "filename": "document.pdf",
  "mime_type": "application/pdf",
  "size_bytes": 102400,
  "type": "file",
  "downloadable": false,
  "expires_at": "2025-05-15T18:37:24.100435Z"
}