[HttpPost]
        public IHttpActionResult GetData(DocusignViewModel docusignViewModel)
        {
            Docusign docusign = new Docusign();
            HtmlHelper.WriteLog("============= Begin [GetData] ================");
            HtmlHelper.WriteLog("[GetData] DataPost: " + JsonConvert.SerializeObject(docusignViewModel));
            try
            {
                string username = ConfigurationManager.AppSettings["usernameDocusign"];
                string password = ConfigurationManager.AppSettings["passwordDocusign"];
                string integratorKey = ConfigurationManager.AppSettings["integratorKey"];
                string basePath = ConfigurationManager.AppSettings["basePath"];
                string urlWebhook = ConfigurationManager.AppSettings["urlWebhook"];
                string downPath = ConfigurationManager.AppSettings["downloadPath"];
                string urlWebsite = ConfigurationManager.AppSettings["urlWebsite"].TrimEnd('/');

                downPath = Path.Combine(downPath, "docusign");
                if (!Directory.Exists(downPath)) Directory.CreateDirectory(downPath);
                string accountId = docusign.LoginApi(username, password, integratorKey, basePath);
                HtmlHelper.WriteLog("[GetData] accountId: " + accountId);
                var roles = docusignViewModel.Roles;
                var envelopeId = string.Empty;
                var message = string.Empty;
                var fileTemp = string.Empty;

                if (roles != null)
                {
                    envelopeId = docusign.CreateDocumentByTemplate(accountId, docusignViewModel.TemplateId, docusignViewModel.DocumentName, roles , urlWebhook);
                    HtmlHelper.WriteLog("[GetData] envelopeId: " + envelopeId);
                }
                var checkDownload = docusign.DownLoadFilesExcludeCertificate(accountId, envelopeId, downPath,
                    docusignViewModel.DocumentName, out message, out fileTemp);
                HtmlHelper.WriteLog("[GetData] checkDownload: " + checkDownload + " Message download:" + message);
                HtmlHelper.WriteLog("[GetData] fileTemp: " + fileTemp);
                urlWebsite = urlWebsite + "/docusign/" + docusignViewModel.DocumentName;
                HtmlHelper.WriteLog("[GetData] urlWebsite: " + urlWebsite);
                if (checkDownload)
                {
                    HtmlHelper.WriteLog("============= End [GetData] ================");
                    return Ok(urlWebsite);
                }
            }
            catch (Exception ex)
            {
                HtmlHelper.WriteLog("[GetData] Error: " + ex.Message);
            }
            HtmlHelper.WriteLog("============= End [GetData] ================");
            return NotFound();
        }

EnvelopesApi envelopesApi = new EnvelopesApi();
            //Check documents
            EnvelopeDocumentsResult docsList = envelopesApi.ListDocuments(accountId, envelopeId);
            int docCount = docsList.EnvelopeDocuments.Count;
            //Check and Create filePath
            string filePath = path;
            if (!Directory.Exists(filePath)) Directory.CreateDirectory(filePath);
            FileStream fs = null;
            string[] filesName = new string[docCount-1];
            fileOutput = Path.Combine(path, fileName);
            // loop through the envelope's documents and download each doc
            for (int i = 0; i < docCount-1; i++)
            {
                // GetDocument() API call returns a MemoryStream
                MemoryStream docStream = (MemoryStream)envelopesApi.GetDocument(accountId, envelopeId, docsList.EnvelopeDocuments[i].DocumentId);
                filePath = Path.Combine(path, "Docusign_" + DateTime.Now.Ticks + ".pdf");
                // let's save the document to local file system
                //filePath = Path.GetTempPath() + Path.GetRandomFileName() + ".pdf";
                fs = new FileStream(filePath, FileMode.Create);
                docStream.Seek(0, SeekOrigin.Begin);
                docStream.CopyTo(fs);
                filesName[i] = filePath;
                fs.Close();
            }