Unanswered

Teams Graph API endpoint to get meeting transcript does not return valid JSON

(0) Share

Report

Posted on by MS-21041326-0

Goal

I am trying to use the Teams "Send a Microsoft Graph HTTP request" connector to automatically fetch the meeting transcripts (which will later be processed using CoPilot).

I make a series of successful HTTP requests to get the content URL of the transcript, which looks something like:

https://graph.microsoft.com/v1.0/users/{user_id}/onlineMeetings/{meeting_id}/transcripts/{transcript_id}/content

I am 99% sure that the response would look something like:

WEBVTT

{uuid}/8-0
00:00:25.405 --> 00:00:25.925
<v User Foo>Hi.</v>

{uuid}/9-0
00:00:30.725 --> 00:00:31.045
<v User Bar>Hello.</v>

What went wrong

However, this step fails in Power Automate, because the response is obviously not in JSON format. The error message is:

HTTP request failed: the content was not a valid JSON. Error while parsing JSON: 'Unexpected character encountered while parsing value: W. Path '', line 0, position 0.'

This is clearly referring to the first character in "WEBVTT".

Theories/ Suspicions

I believe this is because PowerAutomate tries to parse the response as JSON so that it can render in a table. Naturally, this will fail as this endpoint never returns JSON. Therefore this blocks my flow from progressing.

Attempted Workarounds

I have tried a combination of headers such as:

Content Type: text/vtt
Accept: text/vtt

however the error still persists.

Question

Is there a way to direct Power Automate to ignore the response format/ not attempt to parse it, so that I can proceed to the next step?

Categories:

Using connectors

General topics

I have the same question (0)

All responses (3)

Answers (0)

Sort by

Vish WR 1,212 on at

Like (0)

Report
Copy link

Link copied!

@MS-21041326-0

You should use compos and parse to have it in JSON as a transcript returned in vtt

https://devblogs.microsoft.com/microsoft365dev/microsoft-graph-apis-for-microsoft-teams-meeting-transcripts-now-generally-available/#:~:text=To%20use%20the%20Microsoft%20Graph,subscribe%20to%20communications/onlineMeetings/getAllTranscripts

Vishnu WR

LinkedIn - My Tech Space

Please ✅ Does this answer your question if my post helped you solve your issue. This will help others find it more readily. It also closes the item. If the content was useful in other ways, please consider answering Yes to Was this reply helpful? or give it a Like ♥

Was this reply helpful? Yes No
MS-21041326-0 4 on at

Like (0)

Report
Copy link

Link copied!

Hi Vish WR, not sure I understand your suggestion. The action to make the HTTP request itself fails, so I cannot do any post-processing on it such as compositing it into a valid JSON. The link that you included does not mention anything about compose and parse.

Was this reply helpful? Yes No
MS-21041326-0 4 on at

Like (0)

Report
Copy link

Link copied!
Hi @Vish WR Not sure I understand your suggestion.

You should use compos and parse to have it in JSON as a transcript returned in vtt
https://devblogs.microsoft.com/microsoft365dev/microsoft-graph-apis-for-microsoft-teams-meeting-transcripts-now-generally-available/#:~:text=To%20use%20the%20Microsoft%20Graph,subscribe%20to%20communications/onlineMeetings/getAllTranscripts

The action to make the HTTP request itself fails, so I cannot do any post-processing on it such as compositing it into a valid JSON. The link that you included does not mention anything about compose and parse.

I think the solution I need is either:

A way of parameterizing the API call onlineMeetings/{meeting_id}/transcripts/{transcript_id}/content to request output in a format accepted by Power Automate (I think it will only accept JSON)

A way of disabling JSON output processing in PowerAutomate for the Teams HTTP Graph API connector.

Was this reply helpful? Yes No