IDs should really be their own type: string operations don’t really make sense on them. If you use strings, there should probably be a constraint on the accepta

IDs should really be their own type: string operations don’t really make sense on them. If you use strings, there should probably be a constraint on the acceptable characters and lengths: e.g. only digits, exactly 10 or something like that. I personally like the idea of using urls using a domain you control + a path that reflects the type of data it’s an ID for.