I think this could be really useful. Figuring out the folder keys easily means better distribution of google docs and assignments. Cool stuff.
One of my teachers was looking for a solution to pull the folder keys out of the folders created by Hapara so they could use them with other tools like Doctopus. I imagine this could be helpful with Classroom and other tools as well. To make it as simple as possible, my team and I put together this sheet. Drop it in any root folder and run “Get Folders” from the menu and it will pull the name, folder key, and url for any subfolders.