Workflow: Manual Mattermost Create

{
    "id": "178",
    "name": "Create a channel, add a member, and post a message to the channel",
    "nodes": [
        {
            "name": "On clicking 'execute'",
            "type": "n8n-nodes-base.manualTrigger",
            "position": [
                270,
                340
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "Mattermost",
            "type": "n8n-nodes-base.mattermost",
            "position": [
                470,
                340
            ],
            "parameters": {
                "teamId": "4zhpirmh97fn7jgp7qhyue5a6e",
                "channel": "docs",
                "resource": "channel",
                "displayName": "Docs"
            },
            "credentials": {
                "mattermostApi": "Mattermost Credentials"
            },
            "typeVersion": 1
        },
        {
            "name": "Mattermost1",
            "type": "n8n-nodes-base.mattermost",
            "position": [
                670,
                340
            ],
            "parameters": {
                "userId": "5oiy71hukjgd9eprj1o4a3poio",
                "resource": "channel",
                "channelId": "={{$node[\"Mattermost\"].json[\"id\"]}}",
                "operation": "addUser"
            },
            "credentials": {
                "mattermostApi": "Mattermost Credentials"
            },
            "typeVersion": 1
        },
        {
            "name": "Mattermost2",
            "type": "n8n-nodes-base.mattermost",
            "position": [
                870,
                340
            ],
            "parameters": {
                "message": "Hey! Welcome to the channel!",
                "channelId": "={{$node[\"Mattermost\"].json[\"id\"]}}",
                "attachments": [],
                "otherOptions": []
            },
            "credentials": {
                "mattermostApi": "Mattermost Credentials"
            },
            "typeVersion": 1
        }
    ],
    "active": false,
    "settings": [],
    "connections": {
        "Mattermost": {
            "main": [
                [
                    {
                        "node": "Mattermost1",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Mattermost1": {
            "main": [
                [
                    {
                        "node": "Mattermost2",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "On clicking 'execute'": {
            "main": [
                [
                    {
                        "node": "Mattermost",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}