Monitor Google Sheets Changes & Notify Mattermost

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "nodes": [
    {
      "name": "Send message",
      "type": "n8n-nodes-base.mattermost",
      "position": [
        910,
        260
      ],
      "parameters": {
        "message": "=New information was added to your Google Sheet.\nID: {{$json[\"id\"]}}\nName: {{$json[\"name\"]}}\nEmail: {{$json[\"email\"]}}",
        "attachments": [],
        "otherOptions": {}
      },
      "credentials": {
        "mattermostApi": "<your credential>"
      },
      "typeVersion": 1
    },
    {
      "name": "Check if new data",
      "type": "n8n-nodes-base.function",
      "position": [
        710,
        260
      ],
      "parameters": {
        "functionCode": "const new_items = [];\n// Get static data stored with the workflow\n\nconst data = this.getWorkflowStaticData(\"node\");\ndata.ids = data.ids || [];\nfor (let i = items.length - 1; i >= 0; i--) {\n\n// Check if data is already present\n  if (data.ids.includes(items[i].json.ID)) {\n    break;\n  } else {\n\n// if new data then add it to an array\n    new_items.push({\n      json: {\n        id: items[i].json.ID,\n        name: items[i].json.Name,\n        email: items[i].json.Email\n      },\n    });\n  }\n}\ndata.ids = items.map((item) => item.json.ID);\n\n// return new items\nreturn new_items;\n"
      },
      "typeVersion": 1
    },
    {
      "name": "Read data",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        510,
        260
      ],
      "parameters": {
        "options": {},
        "sheetId": "1PyC-U1lXSCbxVmHuwFbkKDF9e3PW_iUn8T-iAd_MYjQ",
        "authentication": "oAuth2"
      },
      "credentials": {
        "googleSheetsOAuth2Api": "<your credential>"
      },
      "typeVersion": 1
    },
    {
      "name": "Execute every 45 mins",
      "type": "n8n-nodes-base.interval",
      "position": [
        310,
        260
      ],
      "parameters": {
        "unit": "minutes"
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "Read data": {
      "main": [
        [
          {
            "node": "Check if new data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Check if new data": {
      "main": [
        [
          {
            "node": "Send message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Execute every 45 mins": {
      "main": [
        [
          {
            "node": "Read data",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}

Credentials you'll need

Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.

• googleSheetsOAuth2Api
• mattermostApi

About this workflow

Monitor Changes In Google Sheets Every 45 Mins. Uses mattermost, googleSheets, interval. Manual trigger; 4 nodes.

Source: https://github.com/Zie619/n8n-workflows — original creator credit. Request a take-down →

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