Gets metadata for Classroom add-ons in the context of a specific post.
To maintain the integrity of its own data and permissions model, an add-on should call this to validate query parameters and the requesting user's role whenever the add-on is opened in an iframe.
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.
Optional. Deprecated, use itemId instead.
Identifier of the announcement, courseWork, or courseWorkMaterial under which the attachment is attached. This field is required, but is not marked as such while we are migrating from postId.
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.
The authorization token is required when neither of the following is true:
The request body must be empty.
If successful, the response body contains an instance of
Requires one of the following OAuth scopes:
For more information, see the Authorization guide.