firebase get User UID using phone number

Question

is it possible to get User UID of any user just using phone number

if not how can i get user UID just by typing the phone number i mean search on the entire database for specific phone number and if it exist i get the ID

Answer 1

Yes, you need the Firebase Admin SDK.

admin.auth().getUserByPhoneNumber("[phone]")
     .then((userRecord) => console.log(userRecord))
     .catch((error) => console.error(error));

Answer 2

Yes,You can manage to get the user ID by using firebase auth. You can check this official document for how to manage users in firebase