Formatting Issue for API call

I think I have a simple formatting issue, but after hours of moving stuff around, I just can’t get the syntax right. I bet someone out there will see the error verry quickly. I’m working in “developer tools” | “actions” to test an api to slack. Connections aren’t a problem and the api, when called from curl works fine. Here’s the way I have formatted a test call to the API. Payload syntax appears to be the issue. The X’s below just hide my real channel ID.

action: rest_command.slack_api
data_template:
  api: 'chat.postMessage'
  payload: >
    {
      "channel": "XXXXXXXXXXX",
      "text": "This is from actions",
      "attachments": '[]'
    }

When I run the action I get:

content:
  ok: false
  error: invalid_arguments
  response_metadata:
    messages:
      - "[ERROR] missing required field: channel"
status: 200

1 post - 1 participant

Read full topic