Flutter: Sign in a user through OTP

Requires either an email or phone number.
This method is used for passwordless sign-ins where an OTP is sent to the user's email or phone number.
If you're using an email, you can configure whether you want the user to receive a magiclink or an OTP.
If you're using phone, you can configure whether you want the user to receive an OTP.
The magic link's destination URL is determined by the SITE_URL. You can modify the SITE_URL or add additional redirect urls in your project.

Parameters

email
(Optional)
Email address to send the magic link or OTP to.
phone
(Optional)
Phone number to send the OTP to.
emailRedirectTo
(Optional)
The URL to redirect the user to after they click on the magic link.
shouldCreateUser
(Optional)
If set to false, this method will not create a new user. Defaults to true.
data
(Optional)
The user's metadata to be stored in the user's object.
captchaToken
(Optional)
The captcha token to be used for captcha verification.
channel
(Optional)
Messaging channel to use (e.g. whatsapp or sms). Defaults to `OtpChannel.sms`.

await supabase.auth.signInWithOtp(
  email: 'example@email.com',
  emailRedirectTo: kIsWeb ? null : 'io.supabase.flutter://signin-callback/',
);

await supabase.auth.signInWithOtp(
  phone: '+13334445555',
);

await supabase.auth.signInWithOtp(
  phone: '+13334445555',
  channel: OtpChannel.whatsapp,  
);