public byte[] DownloadDocument([FromBody] DownloadDoc doc)
        {
            IPolicyService policyService = new PolicyService();

            //DocID="EHSDOC-4-1"
            byte[] fileBytes;
            if (doc != null)
            {
                var stream = policyService.DownloadDocument(doc.Name, doc.Path);
                HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);

                byte[] buffer = new byte[16 * 1024];
                using (MemoryStream ms = new MemoryStream())
                {
                    stream.CopyTo(ms);
                    fileBytes = ms.GetBuffer();
                    // response.Content.Headers.ContentLength = ms.Length;
                }
                return(fileBytes);
            }
            else
            {
                return(null);
            }
        }
        public HttpResponseMessage DownloadFile([FromBody] DownloadDoc doc)
        {
            //byte[] fileBytes = null;
            IPolicyService policyService = new PolicyService();
            Stream         stream        = null;

            if (doc != null)
            {
                stream = policyService.DownloadDocument(doc.Name, doc.Path);
            }
            else
            {
                return(new HttpResponseMessage(HttpStatusCode.BadRequest));
            }

            HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK);

            byte[] buffer = new byte[16 * 1024];
            using (MemoryStream ms = new MemoryStream())
            {
                stream.CopyTo(ms);
                response.Content = new ByteArrayContent(ms.GetBuffer());
                response.Content.Headers.ContentLength = ms.Length;
            }

            response.Headers.AcceptRanges.Add("bytes");
            response.StatusCode = HttpStatusCode.OK;
            response.Content.Headers.ContentDisposition
                = new ContentDispositionHeaderValue("attachment");
            response.Content.Headers.ContentType
                = new MediaTypeHeaderValue("application/octet-stream");
            //response.Content.Headers.ContentLength = stream.Length;
            //response.Content.Headers.ContentLength = contentInfo.Length;

            response.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment");
            //response.Content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/pdf");

            response.Content.Headers.ContentDisposition.FileName = doc.Name;

            return(response);
        }