Power Platform Community Forum Thread Details

I am trying to send a curl request to the workflow url and it is getting invoked.

Action 'Send_each_adaptive_card' failed

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

I am sending a valid JSON message as the data as follows.

# Send the alert using curl
curl -v -H "Content-Type: application/json" -d "${JSON_PAYLOAD}" "${WEBHOOK_URL}"

Categories:

Using flows

Looks like you've set up a flow with an HTTP trigger and somewhere lower down in your flow you've got an input to an action or expression that expects an array in a property of the request body called 'attachments'.

For an HTTP request to have a body it must be a POST, PUT or PATCH or something (not GET) but your curl command is missing the -X parameter to specify the method, e.g -X POST so it'll be defaulting to GET. The fact your flow even triggers at all means the trigger is configured for GET but a GET can't have a body so it'll always be null.