Firebase Auth using phone number and password

user_1619036 0
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I am developing Android app using Firebase. Because of that, I want to use Firebase Auth. I have following requirements:

  • Register/Log in using Facebook
  • Register/Log in using Email/Password
  • Register/Log in using Phone Number/Password

The first two are OK, I followed basic tutorials. However, Phone Number / Password is the problem here. Firebase supports only Phone Number/SMS Token for this (its called Phone Auth), but there is no mention about my case. I do not want to hack Firebase and use its realtime database instead of Auth 'database'. Is there any better way to achieve this?

Thank you.

firebase-authentication firebase authentication android
4 Answers

Firebase phone authentication is using OTP(one time password). This way there is no hassle for the user to remember the password. Once authenticated, you will be registered. The sms code acts as a password. But that is for one time. Usually , users prefer such behaviour in which you dont have to remember the passwords. If you are still looking for the way you want, see this link and create a custom authentication method. https://firebase.google.com/docs/auth/android/custom-auth

user_85204970

Use Fake Email:

Well, Firebase doesn't support sign in with mobile number and password but it supports email and password. So you can create a fake email with your mobile number.

Ie: 78******69@yourdomain.com

Also, you can create a complete Authentication system using it.

Registration:

  • Input user mobile and password and proceed to the next page.

  • Now use Firebase Phone Auth (OTP) to createUser. If process success, link fake email, password credentials in background.

    AuthCredential credential = EmailAuthProvider.getCredential(email, password); auth.getCurrentUser().linkWithCredential(credential);

Login:

  • Input mobile and password to login. Convert the mobile in fake email and then signInWithEmailAndPassword().

Forget Password:

  • Redirect the user to a new Page and user Phone Auth to verify the user. If successful, input a new password and change the password of the Email Auth.
user_120781090
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