Link With Phone Number

Use the linkWithPhoneNumber method to link a new phone number credential to an existing user account.

Method

ConfirmationResult confirmationResult = await FirebaseApp.instance.linkWithPhoneNumber(phoneNumber, applicationVerifier);

Parameters

• phoneNumber (String): The phone number to be linked to the user account.

• applicationVerifier (ApplicationVerifier): A verifier used to ensure the request is valid, typically reCAPTCHA.

Return

• ConfirmationResult: Returns a ConfirmationResult object, which can be used to confirm the phone number by entering the verification code.

This method allows linking a phone number credential to an existing Firebase user, adding an additional sign-in method for the user.