post to mattermost v2

{
  "id": "2",
  "name": "post to mattermost v2",
  "nodes": [
    {
      "name": "RSS Feed Read",
      "type": "n8n-nodes-base.rssFeedRead",
      "position": [
        580,
        150
      ],
      "parameters": {
        "url": "{HERE YOUR TINY TINY RSS PUBLIC FEED}"
      },
      "typeVersion": 1
    },
    {
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1170,
        90
      ],
      "parameters": {
        "url": "=https://{HERE YOUR MASTONDON INSTANCE URL}/api/v1/statuses?access_token={HERE YOUR MASTODON ACCESS TOKEN}",
        "options": {},
        "requestMethod": "POST",
        "queryParametersUi": {
          "parameter": [
            {
              "name": "status",
              "value": "={{$node[\"RSS Feed Read\"].json[\"title\"]}} \n{{$node[\"RSS Feed Read\"].json[\"link\"]}}"
            }
          ]
        }
      },
      "typeVersion": 1
    },
    {
      "name": "Cron",
      "type": "n8n-nodes-ba...