Microsoft Teams webhook from gitlab.

Jacob Thompson 5

Hello,

My team is trying to set up Gitlab event webhooks to be sent to a Microsoft Teams channel. This was previously working until we updated to the new Microsoft Teams.

We created the webhook by going to channel->workflows->Post to a channel when a webhook request is received->selected a team and channel we want->add workflow->copied the webhook url

We then posted it into the gitlab integrations menu, following this guide: https://docs.gitlab.com/ee/user/project/integrations/microsoft_teams.html#configure-your-gitlab-project

We also tested the webhook with the following command and received a message in our chat:

curl -X POST $WEBHOOK_URL --header "Content-Type: application/json" --data '{ "type":"message", "attachments":[ { "contentType":"application/vnd.microsoft.card.adaptive", "contentUrl":null, "content":{ "$schema":"http://adaptivecards.io/schemas/adaptive-card.json", "type":"AdaptiveCard", "version":"1.2", "body":[ { "type": "TextBlock", "text": "For Samples and Templates, see https://adaptivecards.io/samples" }, { "type": "Image", "url": "https://adaptivecards.io/content/cats/1.png" } ] } } ] }'

However, when we get a webhook request from Gitlab we get the following error:

The execution of template action 'Apply_to_each' failed: the result of the evaluation of 'foreach' expression '@triggerBody()?['attachments']' is of type 'Null'. The result must be a valid array.

What can we do to resolve this error?

JimmyYang-MSFT 50,271 Reputation points Microsoft Vendor

2024-06-24T09:44:03.4+00:00

Hi @Jacob Thompson

Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your question is more related to Teams development, so I will also add Teams development tag to your thread. Thanks for your understanding!
Prasad-MSFT 5,991 Reputation points Microsoft Vendor

2024-06-24T13:31:40.9633333+00:00

The error could be due to a mismatch between the expected schema by Microsoft Teams and the payload structure sent by GitLab.

And just to clarify, do you mean to say when you are sending the same card JSON (attached in your post) via curl command it posts the card in MS team's channel successfully, but from GitLab it throws error?
Jacob Thompson 5 Reputation points

2024-06-25T18:17:06.93+00:00

Thanks Prasad-MSFT,Yes when we send the json from the command above it posts to the teams channel. I'm unsure what JSON gitlab is sending, so it probably is an issue with the JSON from Gitlab.
Prasad-MSFT 5,991 Reputation points Microsoft Vendor

2024-06-28T13:25:37.2533333+00:00

Could you please inspect the actual payload being sent from GitLab when the webhook is triggered? This can help identify if any fields are missing or not formatted correctly.

Wei Keat Tey 0

I'm encountering the same issue. Upon inspection, the payload from Gitlab's integration is something as follows.

{
  "sections": [
    {
      "activityTitle": "User pushed to branch [main](https://gitlab.com/project/-/commits/main)",
      "activitySubtitle": "in [Project](https://gitlab.com/project)",
      "activityText": "[Compare changes](https://gitlab.com/project/-/compare/c9070543b8c09abc525990cdfc74728d215c4...fe3c872dda5a3a19c7ab223ac236af84cfa069d)",
      "activityImage": "https://secure.gravatar.com/avatar/8e22e553f959723be68230e883af66306676268074ef93a79c64533b3e8657e0?s=80&d=identicon"
    },
    {
      "text": "[fe3c872d](https://gitlab.com/project/-/commit/fe3c872dda5aabfc6ab2d656d87f1d84cfa069d): Merge branch '1-test' into 'main' - User\n\n[735a4123](https://gitlab.com/project/-/commit/735a41230babc251630f700e0cd60ccd3db7cbc70): Resolve \"Tesst\" - User\n\n[c9070543](https://gitlab.com/project/-/commit/c9070543b8c098512cabc562131fc74728d215c4): Merge branch '1-Test' into 'main' - User"
    }
  ],
  "title": "Project",
  "summary": "User pushed to branch [main](https://gitlab.com/project/-/commits/main) of [Project](https://gitlab.com/project) ([Compare changes](https://gitlab.com/project/-/compare/1234543b8c098512cc65c990cdfc74728d215c4...fe3c872dda5a3a19c7ab2d656d87f1d84cfabc125d))"
}

In comparison, the successful case as sent in the example by OP above is:

{
    "type": "message",
    "attachments": [
        {
            "contentType": "application/vnd.microsoft.card.adaptive",
            "contentUrl": null,
            "content": {
                "$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
                "type": "AdaptiveCard",
                "version": "1.2",
                "body": [
                    {
                        "type": "TextBlock",
                        "text": "For Samples and Templates, see https://adaptivecards.io/samples"
                    },
                    {
                        "type": "Image",
                        "url": "https://adaptivecards.io/content/cats/1.png"
                    }
                ]
            }
        }
    ]
}

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Microsoft Teams webhook from gitlab.