Unable to Download Results of a Finished Asynchronous Conversion

Aspose.Slides Product Family
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I have a service that uses Aspose Cloud REST API to convert PPTX files to series of SVG pictures.
The workflow is:

  1. PUT https://api.aspose.cloud/v3.0/slides/storage/file/<file name>
  2. POST https://api.aspose.cloud/v3.0/slides/async/<file name>/Svg
  3. Poll for status using GET https://api.aspose.cloud/v3.0/slides/async/<operation ID> until status changes to one of the final ones (Finished, Failed or Canceled).
  4. If the operation is finished, download the results: GET https://api.aspose.cloud/v3.0/slides/async/<operation ID>/result

That worked fine for some time, but recently 30-50% of conversions started to fail at the last step. The API returns status “Finished” at the step 3 but then an attempt to download results fails with 400 status and the following body:

{
  "requestId": "689bb73d-b39c-4efe-9d36-a71beb3e9da2",
  "error": {
    "code": "UnexpectedObjectType",
    "message": "Operation is not finished",
    "description": "The object type is different from the expected",
    "dateTime": "2024-10-11T16:32:49.5567638Z"
  }
}

This looks like an API bug to me because the result usually becomes available in awhile after the failure.
Has anyone else encounter this?

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This topic has been moved to the related forum: Unable to Download Results of a Finished Asynchronous Conversion - Free Support Forum - aspose.cloud

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