Currently there's no way to determine whether an empty measurement response means "this student doesn't exist" or "they do exist, but they have no measurements". This PR updates the status code to be a 404 in the former case so that we can make that distinction.
Currently there's no way to determine whether an empty measurement response means "this student doesn't exist" or "they do exist, but they have no measurements". This PR updates the status code to be a 404 in the former case so that we can make that distinction.