Failing to send messages to Teams channel via Teams webhook

[sarcastasaur]

I am trying to follow the example from this page about sending a post request to a Teams webhook, and then I want to send a portion of that text to a Teams channel. The code and workflow I am using is below.

https://learn.microsoft.com/en-us/connectors/teams/?tabs=text1%2Cdotnet#microsoft-teams-webhook

const formatted_Card_Payload = {
  "method": "POST",
  "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": "does this work?"
      }
    ]
  }
}
	]
}

fetch(TEAMS_WEBHOOK_URL, formatted_Card_Payload)

I keep getting the error below, and I am not sure how to resolve it.

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.

I have been stumped on this issue all week, and I'm sure the fix is something super obvious

[lbendlin]

wrong forum?

Microsoft Power Platform Community Forum Thread