Method FinishSignInAsync

FinishSignInAsync(string, string, string?, CancellationToken)

Finishes a sign-in: verifies the credential, saves the values the passkey reported through UpdateAsync(PasskeyRecord, DateTime, CancellationToken), and returns the passkey and its user. The app then signs the user in, or creates a sign-in code bound to CodeChallenge for the client to redeem.

Declaration

public Task<VerifiedPasskey> FinishSignInAsync(string ceremonyId, string credentialJson, string? codeVerifier = null, CancellationToken cancellationToken = default)

Parameters

Type	Name	Description
string	ceremonyId	The ID of the ceremony started with BeginSignInAsync(string?, string?, CancellationToken).
string	credentialJson	The credential the browser returned, as WebAuthn JSON (the PublicKeyCredential.toJSON() form).
string	codeVerifier	The PKCE code verifier, required if the sign-in was started with a code challenge and not allowed otherwise.
CancellationToken	cancellationToken	A token to cancel the operation.

Returns

Type	Description
Task<VerifiedPasskey>

Exceptions

Type	Condition
BadRequestApiException	The credential is malformed, or a code verifier was given for a sign-in that was started without a code challenge.
UnauthorizedApiException	The sign-in failed. The error code is CeremonyExpired, CodeVerifierMismatch, NotRegistered, WrongAccount (for a sign-in started for a user) or VerificationFailed.