Error Bot via Telegram

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 →

{
  "name": "Error Bot via Telegram",
  "nodes": [
    {
      "parameters": {},
      "type": "n8n-nodes-base.errorTrigger",
      "typeVersion": 1,
      "position": [
        -336,
        -96
      ],
      "id": "22d4da90-b555-44cd-9552-c6417ec07f82",
      "name": "Error Trigger"
    },
    {
      "parameters": {
        "chatId": "YOUR_TELEGRAM_CHAT_ID_HERE",
        "text": "={{ $json.telegram_message }}",
        "additionalFields": {}
      },
      "type": "n8n-nodes-base.telegram",
      "typeVersion": 1.2,
      "position": [
        80,
        -96
      ],
      "id": "f0c1be53-f12e-4351-8e54-3a225a5aedbd",
      "name": "Send a error message",
      "credentials": {
        "telegramApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "jsCode": "// N8N Function Node \u2014 Formatar erro p/ Telegram com timezone correto\nconst data = $input.all();\n\nconst TZ = 'America/Sao_Paulo';\nconst TELEGRAM_LIMIT = 4096;\nconst SAFE_LIMIT = 3500; // margem de seguran\u00e7a\nconst ERROR_LIMIT = 150; // limite s\u00f3 para o bloco do erro\n\nconst fmt = (iso) =>\n  new Intl.DateTimeFormat('pt-BR', {\n    timeZone: TZ,\n    dateStyle: 'short',\n    timeStyle: 'medium',\n  }).format(new Date(iso));\n\nfunction truncateText(text, maxLen, suffix = '[...\" (truncated)]') {\n  if (!text) return '';\n  const str = String(text);\n  if (str.length <= maxLen) return str;\n  return str.slice(0, maxLen - suffix.length) + suffix;\n}\n\nfunction formatErrorForTelegram(item) {\n  const e = item.json?.execution || {};\n  const w = item.json?.workflow || {};\n\n  const occurredAtISO =\n    e.stoppedAt || e.finishedAt || e.startedAt || new Date().toISOString();\n\n  const rawError =\n    e.error?.message ||\n    e.error?.description ||\n    JSON.stringify(e.error || {}, null, 2) ||\n    'Unknown error';\n\n  const errMsg = truncateText(rawError, ERROR_LIMIT);\n\n  let msg = '';\n  msg += `\ud83d\udea8 *ERROR IN AUTOMATION* \ud83d\udea8 `;\n  msg += `${fmt(occurredAtISO)}\\n\\n`;\n\n  msg += `\ud83d\udccb *Workflow:* ${w.name || 'N/A'}\\n`;\n  msg += `\ud83c\udd94 *ID:* ${w.id || 'N/A'}\\n\\n`;\n  msg += `\u26a1 *Execution:* #${e.id || 'N/A'}\\n`;\n  msg += `\ud83d\udd04 *Mode:* ${e.mode || 'N/A'}\\n`;\n  if (e.retryOf) msg += `\ud83d\udd01 *Retry of:* #${e.retryOf}\\n`;\n  if (e.lastNodeExecuted) msg += `\ud83d\udccd *Last node:* ${e.lastNodeExecuted}\\n`;\n  msg += `\\n`;\n\n  msg += `\u274c *Error:*\\n${errMsg}\\n\\n`;\n\n  if (e.url) msg += `\ud83d\udd17 *See details:*\\n${e.url}\\n\\n`;\n\n  // trava final de seguran\u00e7a no texto inteiro\n  msg = truncateText(msg, SAFE_LIMIT);\n\n  return {\n    json: {\n      telegram_message: msg,\n      error_summary: {\n        workflow_name: w.name,\n        execution_id: e.id,\n        error_message: errMsg,\n        failed_node: e.lastNodeExecuted || null,\n        occurred_at_iso: occurredAtISO,\n        occurred_at_br: fmt(occurredAtISO),\n        was_truncated: rawError.length > ERROR_LIMIT,\n        original_error_length: String(rawError).length,\n        final_message_length: msg.length,\n      },\n    },\n  };\n}\n\nreturn data.map(formatErrorForTelegram);"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -128,
        -96
      ],
      "id": "09cf2de8-58da-4ba0-a9ad-ab9a548b7e04",
      "name": "treatErrorMsg"
    },
    {
      "parameters": {
        "inputSource": "passthrough"
      },
      "id": "ebbc7e03-6dd6-4645-9c89-aba6a5050a6d",
      "typeVersion": 1.1,
      "name": "When Executed by Another Workflow",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
        -336,
        -288
      ]
    }
  ],
  "connections": {
    "Error Trigger": {
      "main": [
        [
          {
            "node": "treatErrorMsg",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "treatErrorMsg": {
      "main": [
        [
          {
            "node": "Send a error message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "When Executed by Another Workflow": {
      "main": [
        [
          {
            "node": "treatErrorMsg",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1",
    "timezone": "America/Sao_Paulo",
    "callerPolicy": "workflowsFromSameOwner",
    "availableInMCP": true,
    "binaryMode": "separate"
  }
}

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.

• telegramApi

About this workflow

Error Bot via Telegram. Uses errorTrigger, telegram, executeWorkflowTrigger. Event-driven trigger; 4 nodes.

Source: https://github.com/dasgltd/n8n-workflows/blob/main/error-bot/ErrorBot.json — original creator credit. Request a take-down →

More Slack & Telegram workflows → · Browse all categories →

Related workflows

Workflows that share integrations, category, or trigger type with this one. All free to copy and import.