I try to download a pdf file from my sql database. I display list from database. My purpose is get pdf file from link. Because of loop "for" I don't know how to get a correct path to download it.

///FRONTEND CODE
<tr v-for="not in notatki">
        <td>{{not.NotatkaId}}</td>
        <td>{{not.NotatkaName}}</td>
        <td>{{not.Przedmiot}}</td>
        <td>{{not.DateOfJoining}}</td>
        
        <td><a href="http://localhost:37924/api/Notatki/{{not.NotatkaFileName}}" download>Download File</a></td>
        <td>


///API CODE
public JsonResult SaveFile()
        {
            try
            {
                var httpRequest = Request.Form;
                var postedFile = httpRequest.Files[0];
                string filename = postedFile.FileName;
                var physicalPath = _env.ContentRootPath + "/Notatki/" + filename;

                using (var stream = new FileStream(physicalPath, FileMode.Create))
                {
                    postedFile.CopyTo(stream);
                }

                return new JsonResult(filename);
            }

It is link with error [1]: https://i.stack.imgur.com/H5fqW.png