Firebase Auth - Phone

To be able to use OTP service in your apps, you need to first enable Phone auth service in your firebase project.

Enable phone authentication on firebase first.

1. Click on authentication

2. Click on Sign-in method tab

3. click on phone then enable it

   

   

Authorized Backend To Communicate with firebase

1. Move the settings tab, scroll to the Authorized domains

2. Click on Add Domain to add your backend url to the list of authorized domains

3. Add your backend domain. This is so firebase can allow request from your server.