'Is it safe to use a Firestore auto-generated ID in place of the Firebase user auto-generated ID?
The Firebase Authentication auto-generated ID is considerably longer than the Firestore [document] auto-generated ID.
y0b4UcWzyjOvstEdV4aLz6W23oh2 // Firebase Auth
rXGOCJpkccD1WzFdXyA2 // Firestore
I ask because I want to create the user's documents before I create the user itself and so I rely on the Firestore ID for the user's ID and plug that into the create-user function in Auth, which works fine. My question is, is this a good practice? And why is the Auth ID so much longer? Shouldn't document ID's have a bigger key space since documents almost always outnumber users?
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