Creates an add-on attachment under a post.
Requires the add-on to have permission to create new attachments on the post.
This method returns the following error codes:
PERMISSION_DENIEDfor access errors.
INVALID_ARGUMENTif the request is malformed.
NOT_FOUNDif one of the identified resources does not exist.
The URL uses gRPC Transcoding syntax.
Required. Identifier of the course.
Identifier of the announcement, courseWork, or courseWorkMaterial under which to create the attachment. This field is required, but is not marked as such while we are migrating from postId.
Optional. Deprecated, use itemId instead.
Optional. Token that authorizes the request.
The token is passed as a query parameter when the user is redirected from Classroom to the add-on's URL.
This authorization token is required for in-Classroom attachment creation but optional for partner-first attachment creation. Returns an error if not provided for partner-first attachment creation and the developer projects that created the attachment and its parent stream item do not match.
The request body contains an instance of
If successful, the response body contains a newly created instance of
Requires the following OAuth scope:
For more information, see the Authorization guide.