name | string | Resource name of the attachment, in the form "spaces//messages//attachments/*". |
downloadUri | string | Output only. The download URL which should be used to allow a human user to download the attachment. Chat apps should not use this URL to download attachment content. |
driveDataRef | object | A reference to the data of a drive attachment. |
source | string | The source of the attachment. |
thumbnailUri | string | Output only. The thumbnail URL which should be used to preview the attachment to a human user. Chat apps should not use this URL to download attachment content. |
attachmentDataRef | object | |
contentName | string | The original file name for the content, not the full path. |
contentType | string | The content type (MIME type) of the file. |