public async Task <IActionResult> RegisterForNewsletter(NewsLetterRegistration registration)
{
// Attempt to validate the captcha code as an anti-spam mechanism.
bool captchaPassedValidation;
try
{
captchaPassedValidation = await _captcha.Validate(registration.Captcha);
}
catch (Exception ex)
{
// Error: Unknown error.
_logger.LogError(ex, "An unknown exception occurred");
return(BadRequest(APIError.UnknownError()));
}
// If the captcha failed validation, return bad request.
if (!captchaPassedValidation)
{
return(BadRequest(APIError.RecaptchaFailure()));
}
MarketingUser marketingUser;
try
{
// Register the user's email address in the database.
marketingUser = await _newsletter.RegisterUser(registration.Name, registration.Email);
}
catch (MarketingUserAlreadySubscribedException ex)
{
// Error: User is already subscribed in the database.
_logger.LogWarning(ex, "Failed to register marketing user. Email is already registered: {}", registration.Email);
return(BadRequest(APIError.MarketingUserAlreadySubscribed()));
}
catch (Exception ex)
{
// Error: Unknown error.
_logger.LogError(ex, "Exception occurred when attempting to register a marketing user.");
return(BadRequest(APIError.UnknownError()));
}
try
{
// Send confirmation email to the user with unsubscribe link
await _email.SendMarketWelcome(marketingUser);
}
catch (Exception ex)
{
// Error: Unknown error.
_logger.LogError(ex, "An unknown error occurred when attempting to send marketing-welcome email.");
return(BadRequest(APIError.UnknownError()));
}
return(Ok());
}