Calls to Adobe Services API never return.

[DuanePf]

Using the following code, the call to createPdfOperation.Execute(executionContext); never returns.

    private async Task ConvertToPDF()
    {
        try
        {
            if (checkedNodes.Count() == 0) return;
            localService.isLoading = true;

            // Initial setup, create credentials instance.
            Credentials credentials = Credentials.ServicePrincipalCredentialsBuilder()
            .WithClientId(clientId)
            .WithClientSecret(clientSecret)
            .Build();

            //Create an ExecutionContext using credentials and create a new operation instance.
            ExecutionContext executionContext = ExecutionContext.Create(credentials);

            foreach (FileNode bn in checkedNodes)
            {
                if (bn.ContentType == "SharePointFolder" || bn.ContentType == "Root" || bn.ContentType == "BlobPrefix") continue;
                IFile spDoc = await localService.DownloadSharePointDocument($"{SharePointPath}/{bn.Path}");
                if (spDoc == null) continue;
                string mediaType = "UNSUPPORTED";
                string fileExt = Path.GetExtension(bn.FileName).ToLower();
                switch (fileExt)
                {
                    case ".docx": mediaType = CreatePDFOperation.SupportedSourceFormat.DOCX.GetMediaType(); break;
                    case ".doc": mediaType = CreatePDFOperation.SupportedSourceFormat.DOC.GetMediaType(); break;
                    case ".xlsx": mediaType = CreatePDFOperation.SupportedSourceFormat.XLSX.GetMediaType(); break;
                    case ".xls": mediaType = CreatePDFOperation.SupportedSourceFormat.XLS.GetMediaType(); break;
                    default: mediaType = "UNSUPPORTED"; break;
                }
                if (mediaType == "UNSUPPORTED")
                {
                    notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "Error", Detail = $"{fileExt} files not supported.", Duration = -1 });
                    localService.isLoading = false;
                    return;
                }
                Stream ms = await spDoc.GetContentAsync();
                ms.Seek(0, 0);

                FileRef source = FileRef.CreateFromStream(ms, mediaType);
                CreatePDFOperation createPdfOperation = CreatePDFOperation.CreateNew();
                createPdfOperation.SetInput(source);

                // Execute the operation.
                FileRef result = createPdfOperation.Execute(executionContext);

                // Save the result to the specified location.
                Stream outStream = new MemoryStream();
                result.SaveAs(outStream);
                outStream.Seek(0, 0);
                string newFileName = Path.GetFileNameWithoutExtension(bn.FileName) + ".pdf";
                string upResult = await localService.UploadSharePointDocument(currentSharePointFolder, newFileName, outStream, false);
                if (upResult != "SUCCESS")
                {
                    notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "Error", Detail = upResult, Duration = -1 });
                    localService.isLoading = false;
                    return;
                }
            }
            string parentKeyValue = ParentObject.GetType().GetProperty(ParentKeyProperty).GetValue(ParentObject, null).ToString();
            await Load(parentKeyValue);
        }
        catch (ServiceUsageException ex)
        { notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "Service Usage", Detail = ex.Message, Duration = -1 }); }
        catch (ServiceApiException ex)
        { notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "Service Api", Detail = ex.Message, Duration = -1 }); }
        catch (SDKException ex)
        { notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "SDK", Detail = ex.Message, Duration = -1 }); }
        catch (IOException ex)
        { notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "IO", Detail = ex.Message, Duration = -1 }); }
        catch (Exception ex)
        { notificationService.Notify(new NotificationMessage { Severity = NotificationSeverity.Error, Summary = "Error", Detail = ex.Message, Duration = -1 }); }
        finally
        {
            localService.isLoading = false;
            checkedNodes = new List<object>();
        }
    }

[EstebanBustamante]

Hi, 

Kindly check if the conditions are met to reach that code. Under the following conditions, the method won't be triggered.

Unsupported File Types: If the file extension doesn't match any of the supported types (".docx", ".doc", ".xlsx", ".xls"), the method returns early before reaching the .Execute method.

Exceptions: If any exceptions occur during the processing, the execution will jump to the respective catch block, and the .Execute method won't be reached.

Early Returns: There are other return statements within the loop that would cause the method to exit before reaching .Execute.

Hope this helps

[DuanePf]

I have verified that the execute line of code is being reached.  It just never returns.