Checking authentication in firebase on OTP

Question

I'm using firebase as my OTP, whenever I log-in thru my app it always send OTP....can I create a code that can check if the number is already signed in on the console so it won't send OTP again??

Answer 1

Firebase automatically persists and restores the user's credentials when the app is restarted, so you should not have to send an OTP each time.

Check on how to detect the user's authentication state for your platform the first snippet in the documentation for Android, iOS, and Web