public RegistrationController(IJwtHandlerService jwtHandler, IConfigProvider configProvider, ISocialAuth socialAuth, ITokenCleaner cleaner, ISmtpClient smtpClient)
 {
     userRepository  = new UserRepository(jwtHandler, configProvider);
     this.smtpClient = smtpClient;
     this.cleaner    = cleaner;
     this.socialAuth = socialAuth;
 }