public IActionResult DownloadFile(long productID)
{
// Will send the productID to service & repository, where it will get the path where the file is
// from the database. In the service will get the pdf file and convert to FileStream and send back.
Tuple <string, FileStream, bool> stream = service.GetSpecificationFilePdf(productID);
if (stream.Item3 == false || stream.Item2 == null)
{
//return NotFound();
return(new NotFoundResult());
}
// Will send the PDF stream to the view, changing the name!!! (security reasons)
// In this way no path is send to or from the view!
return(new FileStreamResult(stream.Item2, "application/pdf"));
// FileContentResult - use it when you have a byte array you would like to return as a file
// FileStreamResult - you have a stream open, you want to return it's content as a file
//// example how to send the PDF file so that user can save it!
//var filePath = "D:\\PortOfAntwerpAppAssets\\PortOfAntwerpAppAssets\\wwwroot\\hardwarePdf\\Port of Antwerp - ERD.pdf";
//byte[] fileBytes = System.IO.File.ReadAllBytes(filePath);
//string fileName = "myfile.pdf";
//return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, fileName);
}