challengeName not present after using verifyTotpToken

The problem does not occur when using the aws-amplify-react components but I’m trying to create a custom component for TOTP setup and it doesn’t seem to work correctly.

The following code works without an error

 const verifyTotpToken = async ({ totpCode }) => {
        if (
            !Auth ||
            typeof Auth.verifyTotpToken !== 'function' ||
            typeof Auth.setPreferredMFA !== 'function'
        ) {
            throw new Error(
                'No Auth module found, please ensure @aws-amplify/auth is imported'
            );
        }
        const user = authData;
        console.log('verifyTotpToken, user', user);
        try {
            await Auth.verifyTotpToken(user, totpCode);
            try {
                await Auth.setPreferredMFA(user, 'TOTP');
                setSetupMessage('Setup successfully!');
                logger.debug('set up totp success!');
                triggerTOTPEvent('Setup TOTP', 'SUCCESS', user);
            } catch (err) {
                console.log('setPreferredMFA error', err);
                setError('Setup failed!');
            }
        } catch (err) {
            console.log('setup error', err);
            setError('Setup failed!');
            logger.error(err);
        }
    };

and results in preferredMFA being set to SOFTWARE_TOKEN_MFA

but on signing in there is no challengeName so the user is never asked to enter a code.

If I then try await Auth.setPreferredMFA(authData, 'TOTP') after this I get an error of User has not verified software token mfa

I can’t see why this is not working as it’s not much different to how aws-amplify-react components work.

[Oli-Flemmer]

SOLUTION I was having the same issue but fixed it by running Auth.currentAuthenticatedUser after Auth.setPreferredMFA finished. Next time the user logs in they should have an auth challenge. The flow goes something like this: setupTOTP -> verifyTotpToken -> setPreferredMFA -> currentAuthenticatedUser -> signOut -> signIn

[github-actions[bot]]

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