How check user already register or not if we create different bucket or every user

Hello if I create bucket different for every user in firebase and all data of the user in his bucket.then how i find use already register or not because all bucket is different in which bucket I i can please tell me how to create bucket at register time

Better you take device id of the users or imei no. So that if any user will try to create another account from same device. He will get error…

2nd You can use Firebase authentication to verify users. so that if he try to create account with same number you can easily catch them…

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lot of posts on that topic, try searching always before posting.

Thanks Bhai

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