The deep linking appears to work fine, and the assignment is successfully created. However, later, when querying for line items with a POST request to the line items url, there are no resource ids to be found! There is a line item with this particular assignment, but there is no resource id to be found. All I see is:
It looks like it's programmatically creating one for the assignment (with its own title based on the assignment title, not matching this line item) . What am I missing? How can I make sure the resource id is later attached so we can query for adding grades?