I give them a dev test (Node JS) with their choice of database to create a small service (front end and back end). Deliverable is code + db scheme + additionna

I give them a dev test (Node JS) with their choice of database to create a small service (front end and back end). Deliverable is code + db scheme + additionnal questions (mostly how they would improve if they had time, choice on tech etc.) We also have in interview "do this function for me" to see how they think