Add Additional Data To User Profile Via Firestore Functions OnCreate

I'm trying to automatically create a user data in my firestore db when user sign up through firestore functions. However I got 2 option for sign up. Bussiness account and personal

Solution 1:

No additional information is passed into the functions.auth.user().onCreate( function, so there's no way to distinguish between the two types of users there.

The best you can do is set the user-type from within the client by writing the same document from there. To prevent a race condition, you'll want to move the entire creation of the user-document to the client.