NMAOutOfBandRegistration

@objc
public protocol NMAOutOfBandRegistration : NMAHttpOperation

The operation handling an out-of-band registration. This is the object returned by the SDK, when an NMAOutOfBandPayload was processed and the NMAOutOfBandPayload corresponds to an registration operation.

Usage example:

@interface NMAAuthenticatorSelectorImpl : NSObject <NMAAuthenticatorSelector>

@end

@implementation NMAAuthenticatorSelectorImpl

- (void)selectAuthenticatorWithContext:(id<NMAAuthenticatorSelectionContext> _Nonnull)context handler:(id<NMAAuthenticatorSelectionHandler> _Nonnull)handler {
    [handler aaid:aaid];
}

@end

@interface NMABiometricUserVerifierImpl : NSObject <NMABiometricUserVerifier>

@end

@implementation NMABiometricUserVerifierImpl

- (void)verifyBiometricWithContext:(id<NMABiometricUserVerificationContext> _Nonnull)context handler:(id<NMABiometricUserVerificationHandler> _Nonnull)handler {
    [handler verify];
}

@end

@interface NMADevicePasscodeUserVerifierImpl : NSObject <NMADevicePasscodeUserVerifier>

@end

@implementation NMADevicePasscodeUserVerifierImpl

- (void)verifyDevicePasscodeWithContext:(id<NMADevicePasscodeUserVerificationContext> _Nonnull)context handler:(id<NMADevicePasscodeUserVerificationHandler> _Nonnull)handler {
    [handler verify];
}

@end

@interface NMAPinEnrollerImpl : NSObject<NMAPinEnroller>

@end

@implementation NMAPinEnrollerImpl

- (void)enrollPinWithContext:(id<NMAPinEnrollmentContext> _Nonnull)context handler:(id<NMAPinEnrollmentHandler> _Nonnull)handler {
    [handler pin:pin];
}

@end

@interface NMAPasswordEnrollerImpl : NSObject<NMAPasswordEnroller>

@end

@implementation NMAPasswordEnrollerImpl

- (void)enrollPasswordWithContext:(id<NMAPasswordEnrollmentContext> _Nonnull)context handler:(id<NMAPasswordEnrollmentHandler> _Nonnull)handler {
    [handler password:password];
}

@end

id<NMAOutOfBandOperation> oobOperation = [[client operations] outOfBandOperation];

[oobOperation payload:payload];
[oobOperation onRegistration:^(id<NMAOutOfBandRegistration> _Nonnull registration) {
    [registration deviceInformation:[[NMADeviceInformation alloc] initWithName:@"<Device name>" fcmRegistrationToken:@"<FCM token>"]];
    [registration authenticatorSelector:[[NMAAuthenticatorSelectorImpl alloc] init]];
    [registration biometricUserVerifier:[[NMABiometricUserVerifierImpl alloc] init]];
    [registration devicePasscodeUserVerifier:[[NMADevicePasscodeUserVerifierImpl alloc] init]];
    [registration pinEnroller:[[NMAPinEnrollerImpl alloc] init]];
    [registration passwordEnroller:[[NMAPasswordEnrollerImpl alloc] init]];
    [registration onSuccess:^{...}];
    [registration onError:^(NMAOperationError * _Nonnull error) {...}];
    [registration execute];
}];
[oobOperation onError:^(NMAOutOfBandOperationError * _Nonnull error) {...}];

[oobOperation execute];

The biometric and device Passcode authenticators are enrolled at the OS level. That is why, if one of them must be registered, the user must authenticate through NMABiometricUserVerifier or NMADevicePasscodeUserVerifier. In the case of the PIN and password, the credentials are enrolled during registration, so no verification is needed.