/// <summary>
/// SendEmailAsync
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public async Task <SendMailResponse> SendEmailAsync(ISendMailRequest request)
{
var response = new SendMailResponse();
try
{
if (_client == null)
{
_client = new SendGridClient(_clientConfig.ApiKey);
}
var recipientList = request.Recipients.Select(recipient => new EmailAddress(recipient)).ToList();
var from = new EmailAddress(request.From, request.FromName);
var plainTextContent = HtmlText.ConvertHtml(request.Message);
var htmlContent = request.Message;
var msg = MailHelper.CreateSingleEmailToMultipleRecipients(from, recipientList, request.Subject, plainTextContent, htmlContent);
await _client.SendEmailAsync(msg);
}
catch (Exception ex)
{
response.ErrorMessage = ex.Message;
response.IsSuccess = false;
}
return(response);
}
/// <summary>
/// BuildEmailMessage
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
private Message BuildEmailMessage(ISendMailRequest model)
{
Message message = new Message();
System.Net.Mail.MailMessage mail = new System.Net.Mail.MailMessage();
mail.Subject = model.Subject;
mail.To.Add(new System.Net.Mail.MailAddress(model.Recipients[0]));
var htmlMimeType = new ContentType("text/html");
var textMimeType = new ContentType("text/plain");
// Add text/plain as an AlternativeView
var plainText = HtmlText.ConvertHtml(model.Message);
var plainTextView = AlternateView.CreateAlternateViewFromString(plainText);
plainTextView.ContentType = textMimeType;
mail.AlternateViews.Add(plainTextView);
// Add text/html as an AlternateView
var htmlView = AlternateView.CreateAlternateViewFromString(model.Message);
htmlView.ContentType = htmlMimeType;
mail.AlternateViews.Add(htmlView);
foreach (var header in model.Headers)
{
mail.Headers.Add(header.Key, header.Value);
}
MimeKit.MimeMessage mimeMessage = MimeKit.MimeMessage.CreateFromMailMessage(mail);
message.Raw = Encode(mimeMessage.ToString());
return(message);
}
/// <summary>
/// SendEmailAsync
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public Task <SendMailResponse> SendEmailAsync(ISendMailRequest request)
{
var sendMailResponse = new SendMailResponse();
var tcs = new TaskCompletionSource <SendMailResponse>();
//track the message within the handler.
var sendGuid = Guid.NewGuid();
SendCompletedEventHandler handler = null;
handler = (o, ea) =>
{
if (!(ea.UserState is Guid) || ((Guid)ea.UserState) != sendGuid)
{
return;
}
_client.SendCompleted -= handler;
if (ea.Cancelled)
{
tcs.SetCanceled();
}
else if (ea.Error != null)
{
sendMailResponse.ErrorMessage = ea.Error.Message;
tcs.SetResult(sendMailResponse);
}
else
{
sendMailResponse.IsSuccess = true;
tcs.SetResult(sendMailResponse);
}
};
var msg = new MailMessage(request.From, request.Recipients.First())
{
From = new MailAddress(request.From, request.FromName),
Subject = request.Subject
};
var htmlMimeType = new ContentType("text/html");
var textMimeType = new ContentType("text/plain");
// Add text/plain as an AlternativeView
var plainText = HtmlText.ConvertHtml(request.Message);
var plainTextView = AlternateView.CreateAlternateViewFromString(plainText);
plainTextView.ContentType = textMimeType;
msg.AlternateViews.Add(plainTextView);
// Add text/html as an AlternateView
var htmlView = AlternateView.CreateAlternateViewFromString(request.Message);
htmlView.ContentType = htmlMimeType;
msg.AlternateViews.Add(htmlView);
foreach (var header in request.Headers)
{
msg.Headers.Add(header.Key, header.Value);
}
_client.SendCompleted += handler;
_client.SendAsync(msg, sendGuid);
return(tcs.Task);
}
