public async Task <RegisterResult> RegisterUserAsync(RegisterUser registerUser) { var user = await _userDbManager.GetUserByEmailAsync(registerUser.Email); if (user != null) { return(new RegisterResult("Email already exists")); } user = await _userDbManager.GetUserByUsernameAsync(registerUser.Username); if (user != null) { return(new RegisterResult("Username already exists")); } var activationCode = Guid.NewGuid(); var sucess = await _userDbManager.RegisterAsync(registerUser.Username, registerUser.Email, registerUser.Password, activationCode); if (!sucess) { return(new RegisterResult("Error during registration")); } //Verification Email VerificationEmail(registerUser.Email, activationCode.ToString()); return(new RegisterResult()); }