Workflow: Manual Rocketchat Send

{
    "id": "90",
    "name": "Post a message to a channel in RocketChat",
    "nodes": [
        {
            "name": "On clicking 'execute'",
            "type": "n8n-nodes-base.manualTrigger",
            "position": [
                250,
                300
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "Rocketchat",
            "type": "n8n-nodes-base.rocketchat",
            "position": [
                450,
                300
            ],
            "parameters": {
                "text": "Hello everyone",
                "channel": "#general",
                "options": [],
                "attachments": []
            },
            "credentials": {
                "rocketchatApi": "Rocket"
            },
            "typeVersion": 1
        }
    ],
    "active": false,
    "settings": [],
    "connections": {
        "On clicking 'execute'": {
            "main": [
                [
                    {
                        "node": "Rocketchat",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}