public async Task <IActionResult> Get(int id, [FromQuery] CertificateFormat?format = null)
{
var cert = await _certificateRetrievalService
.GetCertificateByIdAsync(id, CertificateRetrievalOptions.ForRendering);
format ??= GetCertificateFormatFromMediaType(Request.Headers[HeaderNames.Accept])
?? CertificateFormat.Json;
switch (format)
{
case CertificateFormat.Json:
return(Ok(new CertificateDto(cert)));
case CertificateFormat.Html:
var html = await _certificateRenderer
.RenderToHtmlAsStringAsync(new CertificateViewModel(cert));
return(Content(html, MediaTypeNames.Text.Html));
case CertificateFormat.Pdf:
var stream = await _certificateRenderer
.RenderToPdfAsStreamAsync(new CertificateViewModel(cert));
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
return(File(memoryStream.ToArray(), MediaTypeNames.Application.Pdf));
default:
throw new InvalidOperationException($"Unsupported cert format: {format}");
}
}
public async Task <IActionResult> DownloadCertificate(int id)
{
var certificate = await _certificateRetrievalService
.GetCertificateByIdAsync(id,
CertificateRetrievalOptions.ForRendering);
var stream = await _certificateRenderer
.RenderToPdfAsStreamAsync(new CertificateViewModel(certificate));
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
return(File(memoryStream.ToArray(), "application/pdf"));
}
public async Task SendCertificateAsync(Certificate certificate, CancellationToken cancellationToken = default)
{
var pdfStream = await _certificateRenderer
.RenderToPdfAsStreamAsync(new CertificateViewModel(certificate));
var memoryStream = new MemoryStream();
await pdfStream.CopyToAsync(memoryStream, cancellationToken);
await _emailSender.SendStandardEmailAsync(certificate.RecipientEmail,
$"Kursbevis for {certificate.Title}",
"Her er kursbeviset! Gratulere!",
new Attachment
{
Filename = "kursbevis.pdf",
ContentType = MediaTypeNames.Application.Pdf,
Bytes = memoryStream.ToArray()
});
}
