get files from IFormFile for email attachment - email

Question

I have an upload controller
// Multiple files upload
[HttpPost("upload/multiple")]
public IActionResult Multiple(IFormFile[] files)
{
try
{
// Put your code here
return StatusCode(200);
}
catch (Exception ex)
{
return StatusCode(500, ex.Message);
}
}
I am trying to use the IFormFile to get files for email attachments using MailKit
This is my email code
private async Task SendEmail()
{
try
{
// create email message
var email = new MimeMessage();
email.From.Add(MailboxAddress.Parse(sender));
email.To.Add(MailboxAddress.Parse(receiver));
email.Subject = emailsubject;
var multipart = new Multipart("mixed");
multipart.Add(new TextPart(TextFormat.Html) { Text = emailMessage });
foreach (var attachment in files)
{
var content = new MemoryStream();
attachment.CopyTo(content);
content.Position = 0;
var contentType = ContentType.Parse(attachment.ContentType);
var part = new MimePart(contentType.MimeType)
{
FileName = Path.GetFileName(attachment.FileName),
ContentTransferEncoding = ContentEncoding.Base64,
Content = new MimeContent(content),
};
multipart.Add(part);
}
email.Body = multipart;
//email.Body = new TextPart(TextFormat.Html) { Text = emailMessage};
// send email
using var smtp = new SmtpClient();
smtp.Connect(outgoingServer, outgoingPort, SecureSocketOptions.Auto);
smtp.Authenticate(userName, userPassword);
smtp.Send(email);
smtp.Disconnect(true);
}
catch (Exception ex)
{
NotificationService.Notify(NotificationSeverity.Error, "Send Email Error!", ex.Message, 7000);
}
}
}
This generates an error on the 'files' variable
"The name 'files' does not exist in the current content.
Can someone tell me what I am missing to pull the information from the controller for 'files'???

Answer 1

Here, in the Async Task SendEmail task, we have to set the parameter of type IFormFile like below,
private async Task sendEmail(IFormFile file)
Here is the Controller Code,
[HttpPost("send")]
public async Task<IActionResult> SendMail(IFormFile file)
{
try
{
await mailService.sendEmailAsync(file);
return Ok("Mail Sent!");
}
catch (Exception ex)
{
throw;
}
}
And We can't get IFormFile[] directly and pass it to the sendEmail method as a parameter. Instead we can create the model class with public List<IFormFile>? attachments{get;set;} and send the instance of the model class as a parameter to the sendEmail method.