Forum Discussion

hthoenig's avatar
hthoenig
Copper Contributor
Jul 06, 2021
Solved

Get file content (attachment like docx, png,...) of a message in Teams with message extension action

Hi Is it possible to select a message in Teams and get the file content of the attachment to store it in a database with a message extension action? If I select the action on message->more actions,...
developer
messaging
ChrisHoardMVP's avatar
ChrisHoardMVP
MVP
Jul 28, 2021

Hi hthoenig

See Github thread here

https://github.com/MicrosoftDocs/msteams-docs/issues/2021

Currently file download is not supported through message extension. when you receive an ME payload, it stores the file in different location which is currently not downloadable.

Uservoice is here:

https://microsoftteams.uservoice.com/forums/555103-public/suggestions/41607805-messaging-extension-file-download

Would recommend voting it up and adding to the Github thread to see where the team is at. At the moment, from current voting and responses on Github doesn't look like an ETA is there yet

Hope that answers your question

Best, Chris

  • hthoenig's avatar
    hthoenig
    Copper Contributor
    Jul 29, 2021
    Hi Chris
    Is there another way to download these files within messaging extensions? Mybe with Graph? I tried it with
    GraphServiceClient graphClient = new GraphServiceClient( authProvider );
    var driveItem = await graphClient.Shares["{sharedDriveItem-id}"].DriveItem
    .Request()
    .GetAsync();
    But it does not work. I get always an error.
    Any idea?
    Cheers Harald
    • ChrisHoardMVP's avatar
      ChrisHoardMVP
      MVP
      Jul 29, 2021
      This article insinuates that they should be able to be downloaded

      https://github.com/MicrosoftDocs/msteams-docs/issues/2021

      See this paragraph

      My solution was to add an extra layer of authentication to the MsGraph api and use that to query for the attachments in OneDrive/Sharepoint. By way of extra api pulls for the team id and the drive id, I do eventually get to an endpoint that returns a downloadUrl property which allows me to download the files. Personally, I think it's cool that such a solution is possible via Graph and honestly it seems to be working decently well (aside from the timeout problem and path-based search uncertainty). However, it also seems less-reliable and unnecessarily circuitous.

      I would comment on Github and reach out to the user who should be able to direct how to do that

      Best, Chris
      • hthoenig's avatar
        hthoenig
        Copper Contributor
        Jul 30, 2021
        Thanks Chris!
        Cheers Harald
  • hthoenig's avatar
    hthoenig
    Copper Contributor
    Jul 29, 2021

    Thanks Chris

    Hope this feature will be provided soon.

    Cheers Harald

Resources