Resource: MessagePartBody
The body of a single MIME message part.
| JSON representation | 
|---|
| { "attachmentId": string, "size": integer, "data": string } | 
| Fields | |
|---|---|
| attachmentId | 
 When present, contains the ID of an external attachment that can be retrieved in a separate  | 
| size | 
 Number of bytes for the message part data (encoding notwithstanding). | 
| data | 
 The body data of a MIME message part as a base64url encoded string. May be empty for MIME container types that have no message body or when the body data is sent as a separate attachment. An attachment ID is present if the body data is contained in a separate attachment. A base64-encoded string. | 
| Methods | |
|---|---|
| 
 | Gets the specified message attachment. |