Flutter: challenge

Prepares a challenge used to verify that a user has access to a MFA factor.

• An enrolled factor is required before creating a challenge.
• To verify a challenge, see mfa.verify().

Parameters

• factorId

  (Required)

  System assigned identifier for authenticator device as returned by enroll

• channel

  (Optional)

  Messaging channel to use for phone factors (e.g. `OtpChannel.whatsapp` or `OtpChannel.sms`). Defaults to the server's behavior (SMS) when omitted. Ignored for TOTP factors.

Examples

Create a challenge for a factor

final res = await supabase.auth.mfa.challenge(
  factorId: '34e770dd-9ff9-416c-87fa-43b31d7ef225',
);

Create a challenge for a phone factor over WhatsApp

final res = await supabase.auth.mfa.challenge(
  factorId: '34e770dd-9ff9-416c-87fa-43b31d7ef225',
  channel: OtpChannel.whatsapp,
);