public async Task <IActionResult> DownloadByIdAsync(int id, CancellationToken cancellationToken)
{
var item = await _attachmentService.GetByIdAsync(id, cancellationToken);
if (item == null)
{
throw new EntityNotFoundException(nameof(FunctionInfo), id);
}
// force download here
var fileName = item.OriginalFileName;
var savedFileName = Path.GetFileName(item.SavedFileName);
var contentType = "application/octet-stream";
new FileExtensionContentTypeProvider().TryGetContentType(fileName, out contentType);
var fileLocation = _uriComposer.ComposeUploadPath(savedFileName);
byte[] fileBytes = System.IO.File.ReadAllBytes(fileLocation);
return(File(fileBytes, (contentType ?? "application/octet-stream"), fileName));
}
