Authenticate with Firebase using Phone Number iOS

Question

I have to create a sign up phone number option in app and I am getting a little confused when it comes to phone number/verification textfield and whole interface controller. Do I have to create this on my own or firebase auth is supporting this screen as it happens in digits?

firebase docs: https://firebase.google.com/docs/auth/ios/phone-auth

Answer 1

You have two solutions, one would be to use their UI: https://github.com/firebase/FirebaseUI-iOS

The second one would be to create the UI on your own and just call methods mentioned in the link you shared:

• verifyPhoneNumber (which returns the code)
• credentialWithVerificationID (creates verification object)
• signInWithCredential (accepts the verification object and tries to sign-in)

Answer 2

Basically, you want to get the user phone number in order to receive the code(most likely from a textfield). Once you successfully sent the code. transition to a view where the user can enter the code received thru sms than login the user. keep in mind the phone number format has to be something like this +countrycodeStatecodeNumber or [phone]