Inconsistent Error accessing Blob SAS URI when passing to Video Indexer via API

Jake Alexander 0

I am having an inconsistent issue when generating a SAS URI for an Azure Blob and trying to pass it to Azure Video Indexer via the Index API endpoint.

The error I get is a 400 with the message "URL_UNREACHABLE" it has a message saying that the address of the blob is unreachable. When I try to navigate to the SAS URI generated, it works fine. The SAS token is not in the url in the error message though, is this relevant?

It seems to work 1st time 60% of the time, 2nd time 20% of the time, but will completely fail for 20%. I am encoding the SAS token in the request and the link is valid.

I am running this through a Power Automate Flow, unfortunately the pre-built flow modules are of no use to me as I need to use an ARM token.

Any ideas why I would be getting this error? Can't seem find any answered examples of a similar issues.

YutongTie-MSFT 52,866 Reputation points

2023-03-21T22:15:18.1166667+00:00
Hello @Jake Alexander

Based on the information provided, it is possible that the error is not caused by the SAS URI itself, but rather by a network connectivity issue or a temporary glitch in the Video Indexer service. However, there are a few things you could check to try to isolate and troubleshoot the issue:

Make sure that the SAS URI is generated correctly and includes the necessary permissions for the video indexer to access the blob. Check that the SAS token is not expired and that the SAS URI is correctly formatted.

Check if the issue persists when you try to access the SAS URI from a different machine or network. This can help you determine if the problem is with the network connectivity or with the Azure Video Indexer service.

Try to reproduce the issue using the Azure Storage Explorer or Azure Portal to access the Blob. This can help you isolate the issue to the Video Indexer API or Blob Storage.

Contact Azure support for assistance if the issue persists and you are unable to identify the root cause. Please let us know if you still seeing this issue after first three steps.

Regarding the SAS token not being in the URL in the error message, this may not be relevant, as the SAS token is typically included in the HTTP headers of the request rather than in the URL itself. However, you should double-check that the SAS token is correctly included in the headers of your Video Indexer API request.

I hope this helps.

Regards,

Yutong
Jake Alexander 0 Reputation points

2023-03-22T13:55:13.69+00:00

Hi Yutong,

Thank you for your prompt response!

1 through 3 I have tried in some capacity to no measurable success unfortunately.

I will get on to Azure Support to see if they can offer any assistance.

Thanks for the help

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