updateMask may only contain \"draftGrade\" or \"assignedGrade\" 400 error on patching student submission through Google classroom API

Question

I'm trying to add grades to a student submission through the Google classroom api but I get an error message which is confusing me. It says I should be sending the draftGrade key as part of the request, which I'm already doing. I've also tried with assignedGrade as the error says I should be using either one or the other, but I still get the same error. I've also tried different data types and formats so not sure at this point what else to try. Any ideas about what I could be doing wrong please?

Thank you very much.

Answer 1

We figured out what the issue was. Needed to add updateMask not as part of the body but as key params.