NewService returns a new implementation of auth.TOTPAPI.

SetupHTTPHandler converts a service's public methods to http handlers.

WithLogger configures the service with a logger.

WithOTP configures the service with an OTP management service.

WithRepoManager configures the service with a new RepositoryManager.

WithTokenService configures the service with a TokenService.

Response is a success response with an embedded TOTP string.

ConfigOption configures the service.