Workflow: Mattermost GoogleSheets Automation

{
    "id": "3",
    "name": "StatsInstagram",
    "nodes": [
        {
            "name": "Mattermost",
            "type": "n8n-nodes-base.mattermost",
            "position": [
                1030,
                290
            ],
            "parameters": {
                "message": "=Bonjour ! Voici les stats de notre Instagram {{$json[\"Compte\"]}} en ce beau matin du {{$node[\"Date & Time\"].json[\"day_today\"]}} {{$node[\"Date & Time\"].json[\"data\"]}}\nLe nombre de Followers est de : {{$json[\"Followers\"]}}\nNous avons r\u00e9alis\u00e9 : {{$json[\"Posts\"]}} posts, \nBravo !",
                "channelId": "xxxxxxx",
                "attachments": [],
                "otherOptions": []
            },
            "credentials": {
                "mattermostApi": "API"
            },
            "typeVersion": 1
        },
        {
            "name": "Date & Time",
            "type": "n8n-nodes-base.dateTime",
            "position": [
                640,
                290
            ],
            "parameters": {
                "value": "={{$json[\"date_today\"]}}",
                "custom": true,
                "options": [],
                "toFormat": "DD-MM-YYYY"
            },
            "typeVersion": 1
        },
        {
            "name": "Cron",
            "type": "n8n-nodes-base.cron",
            "position": [
                310,
                290
            ],
            "parameters": {
                "triggerTimes": {
                    "item": [
                        {
                            "hour": 8
                        }
                    ]
                }
            },
            "typeVersion": 1
        },
        {
            "name": "Get the date today",
            "type": "n8n-nodes-base.function",
            "position": [
                470,
                290
            ],
            "parameters": {
                "functionCode": "var date = new Date().toISOString();\nvar day = new Date().getDay();\nconst weekday = [\"Dimanche\", \"Lundi\", \"Mardi\", \"Mercredi\", \"Jeudi\", \"Vendredi\", \"Samedi\"];\n\nitems[0].json.date_today = date;\nitems[0].json.day_today = weekday[day];\n\nreturn items;\n"
            },
            "typeVersion": 1
        },
        {
            "name": "Read data on Google Sheets",
            "type": "n8n-nodes-base.googleSheets",
            "position": [
                850,
                290
            ],
            "parameters": {
                "range": "cells",
                "options": [],
                "sheetId": "sheetID",
                "authentication": "oAuth2"
            },
            "credentials": {
                "googleSheetsOAuth2Api": "GoogleAPI"
            },
            "typeVersion": 1
        }
    ],
    "active": false,
    "settings": [],
    "connections": {
        "Cron": {
            "main": [
                [
                    {
                        "node": "Get the date today",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Date & Time": {
            "main": [
                [
                    {
                        "node": "Read data on Google Sheets",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Get the date today": {
            "main": [
                [
                    {
                        "node": "Date & Time",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Read data on Google Sheets": {
            "main": [
                [
                    {
                        "node": "Mattermost",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}