Firebase sms verification for users

[TIMAI2]

Here is one way

Firebase OTP (Sign In with Phone) using Webviewer

There have been several requests for this in the past year, but I have not seen a solution. Here, then, is one method to allow a user to sign in to Firebase (or if you want, to just authenticate their phone number). The method uses an html page and javascript, which allows for the use of a recaptcha in order to generate the verification code and send an SMS. I understand that Firebase allows for 10,000 free SMS per month (needs confirming under current requirements) I found the solution on med…