uptime_kuma_alert.json

{
  "name": "uptime kuma alert",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "REPLACE_WITH_WEBHOOK_PATH",
        "options": {}
      },
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2.1,
      "position": [
        -2320,
        192
      ],
      "id": "af61957f-a7bc-48b6-9a75-ed6a9a9e3469",
      "name": "Webhook",
      "webhookId": "REPLACE_WITH_WEBHOOK_ID"
    },
    {
      "parameters": {
        "url": "={{$json.body.monitor.url}}",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "User-Agent",
              "value": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127 Safari/537.36"
            }
          ]
        },
        "options": {
          "response": {
            "response": {
              "fullResponse": true,
              "neverError": true
            }
          }
        }
      },
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        -1040,
        96
      ],
      "id": "32b53fbc-cd1c-4af1-9631-38dbe438f3c0",
      "name": "HTTP Request"
    },
    {
      "parameters": {
        "modelName": "models/gemini-2.5-pro",
        "options": {}
      },
      "id": "eb6ead1d-5512-4686-941a-e72ec72a98fe",
      "name": "GeminiModel1",
      "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
      "position": [
        -800,
        336
      ],
      "typeVersion": 1,
      "credentials": {
        "googlePalmApi": {
          "id": "REPLACE_WITH_GEMINI_CREDENTIAL_ID",
          "name": "Demo Gemini Credential"
        }
      }
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "=你是 SRE 值班助手。你將看到監控名稱、URL，以及 HTTP 請求結果（狀態碼、錯誤、回應標頭、內容片段）。\n\n你的任務：僅在「需要人工處理的生產故障」時回覆一段繁體中文說明（≤180字），\n直接說清楚：哪個站點、出了什麼問題、錯誤碼、可能原因／下一步建議（簡短即可）。\n如果不是需要人工處理的故障（例如：2xx/3xx；可預期的 4xx 如 401/403/404；短暫限流；已恢復），請輸出字串SILENT（不要有任何其他文字和符號以及空格）。\n若沒有狀態碼但存在連線錯誤，請說明「錯誤碼：無（連線失敗／逾時）」。\n\n【監控】\n名稱：{{ $node[\"Webhook\"].json.monitor.name }}\nURL：{{ $node[\"Webhook\"].json.monitor.url }}\n\n【HTTP】\n狀態碼：{{ $json.statusCode }}\n狀態語：{{ $json.statusMessage }}\n錯誤：{{ $json.error }}\n回應標頭（完整 JSON）：{{ JSON.stringify($json.headers || {}, null, 2) }}\n內容片段（若為字串則原樣輸出，否則轉 JSON）：{{\n  (typeof $json.data === \"string\"\n    ? $json.data\n    : JSON.stringify($json.data ?? $json.body ?? {}, null, 2))\n}}",
        "batching": {}
      },
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "typeVersion": 1.7,
      "position": [
        -800,
        96
      ],
      "id": "a239c060-d652-4d7d-a12d-0dbdf30e6c07",
      "name": "Basic LLM Chain"
    },
    {
      "parameters": {
        "jsCode": "// 讀 LLM 原樣輸出\nconst raw = String($json.text ?? $json.output ?? $json.response ?? \"\").trim();\n\n// 嚴格協議：只有精確 \"SILENT\"（大小寫不敏感）才不通知\nconst isSilent = /^SILENT$/i.test(raw);\n\nreturn {\n  shouldNotify: !isSilent,\n  message: isSilent ? \"\" : raw,\n};"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -448,
        96
      ],
      "id": "5df05e6e-c63a-43c0-9cd9-9ea7f3f6ec48",
      "name": "Code"
    },
    {
      "parameters": {
        "amount": 3,
        "unit": "minutes"
      },
      "type": "n8n-nodes-base.wait",
      "typeVersion": 1.1,
      "position": [
        -1744,
        128
      ],
      "id": "fd835730-4de6-4fb6-8475-a14c79b312de",
      "name": "Wait",
      "webhookId": "REPLACE_WITH_WAIT_WEBHOOK_ID"
    },
    {
      "parameters": {
        "jsCode": "// Code1 — 收到 UP，僅記錄「最後一次 UP 的時間戳」\nconst store = $getWorkflowStaticData('global');\nif (!store.alerts) store.alerts = {};\n\nconst body = $json.body ?? {};\nconst monitorId =\n  body.monitorID ??\n  $json.monitor?.id ??\n  $json.monitorID ??\n  'unknown';\n\nconst now = Date.now();\nconst rec = store.alerts[monitorId] ?? (store.alerts[monitorId] = {\n  lastUpAt: 0,\n  lastDownAt: 0,\n  notified: {}\n});\nrec.lastUpAt = now;\n\nreturn [{ json: { ...$json, monitorId, lastUpAt: now } }];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -1920,
        256
      ],
      "id": "a6c0463a-e343-4215-a57a-733d9540f0b1",
      "name": "Code1"
    },
    {
      "parameters": {
        "jsCode": "// Code2 — 記錄一次「DOWN 事件」的時間戳，並產生事件ID\nconst store = $getWorkflowStaticData('global');\nif (!store.alerts) store.alerts = {};\n\nconst body = $json.body ?? {};\nconst monitorId =\n  body.monitorID ??\n  $json.monitor?.id ??\n  $json.monitorID ??\n  'unknown';\n\nconst downAt = Date.now();                    // 這次 DOWN 的時間戳（毫秒）\nconst incidentId = `${monitorId}:${downAt}`;  // 本次事件ID（用於去重）\n\n// 初始化/更新該監控的全域狀態（只存最後一次 UP/ DOWN 的時間戳）\nconst rec = store.alerts[monitorId] ?? (store.alerts[monitorId] = {\n  lastUpAt: 0,\n  lastDownAt: 0,\n  notified: {}     // 用 incidentId 做去重，避免重覆通知\n});\nrec.lastDownAt = downAt;\n\nreturn [{\n  json: {\n    ...$json,              // 保留原始 webhook 資料\n    monitorId,\n    downAt,\n    incidentId,\n    recovered: false,      // 預設未恢復（僅佔位，真正判定在 Code3）\n    alreadyNotified: false // 預設未通知（真正判定在 Code3）\n  }\n}];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -1920,
        128
      ],
      "id": "af95469c-beba-447e-82c9-f37b7e90517c",
      "name": "Code2"
    },
    {
      "parameters": {
        "jsCode": "// Code3 — Wait 之後才判斷是否恢復：\n// 規則：若「最後一次 UP 的時間戳 >= 本次 DOWN 的時間戳」→ recovered = true\n//      否則 recovered = false\nconst store = $getWorkflowStaticData('global');\nif (!store.alerts) store.alerts = {};\n\nconst monitorId =\n  $json.monitorId ??\n  $json.body?.monitorID ??\n  $json.monitor?.id ??\n  'unknown';\n\nconst downAt = Number($json.downAt ?? 0);\nconst incidentId = String($json.incidentId ?? `${monitorId}:${downAt}`);\n\nconst rec = store.alerts[monitorId] ?? { lastUpAt: 0, lastDownAt: 0, notified: {} };\nconst lastUpAt = Number(rec.lastUpAt || 0);\n\n// 是否在這次 DOWN 之後出現過 UP\nconst recovered = lastUpAt >= downAt;\n\n// 事件級別的去重：同一 incidentId 只通知一次\nconst alreadyNotified = !!(rec.notified && rec.notified[incidentId]);\n\n// 若未恢復且尚未通知，做去重標記（發送後 If2 會放行到通知節點）\nif (!recovered && !alreadyNotified) {\n  rec.notified = rec.notified || {};\n  rec.notified[incidentId] = true;\n}\n\n// 若已恢復，可選擇清理過期的去重標記（保守：保留，以免 race）\nreturn [{\n  json: {\n    ...$json,\n    monitorId,\n    downAt,\n    incidentId,\n    recovered,        // 給 If2 用\n    alreadyNotified   // 給 If2 用（事件去重）\n  }\n}];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        -1568,
        128
      ],
      "id": "c1f4877b-bee7-4b37-96e0-3fd153a6ba5b",
      "name": "Code3"
    },
    {
      "parameters": {
        "chatId": "REPLACE_WITH_DEMO_OPERATOR_CHAT_ID",
        "text": "={{ $json.message }}",
        "additionalFields": {
          "appendAttribution": false
        }
      },
      "type": "n8n-nodes-base.telegram",
      "typeVersion": 1.2,
      "position": [
        0,
        192
      ],
      "id": "d38c7e2d-4a3b-485e-a956-edbb8b800414",
      "name": "Send Demo Operator",
      "webhookId": "REPLACE_WITH_TELEGRAM_WEBHOOK_ID",
      "credentials": {
        "telegramApi": {
          "id": "REPLACE_WITH_TELEGRAM_CREDENTIAL_ID",
          "name": "Demo Telegram Bot"
        }
      }
    },
    {
      "parameters": {
        "chatId": "REPLACE_WITH_DEMO_TEAM_CHAT_ID",
        "text": "=@demo_oncall {{ $json.message }}",
        "additionalFields": {
          "appendAttribution": false
        }
      },
      "type": "n8n-nodes-base.telegram",
      "typeVersion": 1.2,
      "position": [
        0,
        0
      ],
      "id": "87b2f32b-f4dd-4322-a2d5-23b5389283d2",
      "name": "Send Demo Team",
      "webhookId": "REPLACE_WITH_TELEGRAM_WEBHOOK_ID",
      "credentials": {
        "telegramApi": {
          "id": "REPLACE_WITH_TELEGRAM_CREDENTIAL_ID",
          "name": "Demo Telegram Bot"
        }
      }
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "c3d6a352-e9fd-4f08-aae0-94124f557444",
              "leftValue": "={{ $json[\"body\"][\"heartbeat\"][\"status\"].toString() }}",
              "rightValue": "=0",
              "operator": {
                "type": "string",
                "operation": "equals",
                "name": "filter.operator.equals"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        -2160,
        192
      ],
      "id": "8ecfb5dc-e50f-43f7-8085-2c72a3f818db",
      "name": "If down"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "46a209ab-9f05-4ed4-893b-0d4a2d0ffe8a",
              "leftValue": "={{$json.recovered.toString()}}",
              "rightValue": "=false",
              "operator": {
                "type": "string",
                "operation": "equals",
                "name": "filter.operator.equals"
              }
            },
            {
              "id": "d30ff03e-c33f-4cc2-9d7c-d263574cc832",
              "leftValue": "={{$json.alreadyNotified.toString()}}",
              "rightValue": "=false",
              "operator": {
                "type": "string",
                "operation": "equals",
                "name": "filter.operator.equals"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        -1376,
        128
      ],
      "id": "dd24ac24-15bd-4e83-a3e2-ca8f81d21bf1",
      "name": "If no up"
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict",
            "version": 2
          },
          "conditions": [
            {
              "id": "b4bbeb53-347f-438e-b1ad-3f20e599caec",
              "leftValue": "={{$json.shouldNotify.toString()}}",
              "rightValue": "true",
              "operator": {
                "type": "string",
                "operation": "equals",
                "name": "filter.operator.equals"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        -272,
        96
      ],
      "id": "1673fdfc-6348-48cb-b0cb-8b54c8e9391d",
      "name": "If need alert"
    }
  ],
  "pinData": {},
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "If down",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "GeminiModel1": {
      "ai_languageModel": [
        [
          {
            "node": "Basic LLM Chain",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "HTTP Request": {
      "main": [
        [
          {
            "node": "Basic LLM Chain",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Basic LLM Chain": {
      "main": [
        [
          {
            "node": "Code",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code": {
      "main": [
        [
          {
            "node": "If need alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code2": {
      "main": [
        [
          {
            "node": "Wait",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Wait": {
      "main": [
        [
          {
            "node": "Code3",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Code3": {
      "main": [
        [
          {
            "node": "If no up",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If down": {
      "main": [
        [
          {
            "node": "Code2",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Code1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If no up": {
      "main": [
        [
          {
            "node": "HTTP Request",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If need alert": {
      "main": [
        [
          {
            "node": "Send Demo Operator",
            "type": "main",
            "index": 0
          },
          {
            "node": "Send Demo Team",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": true,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "REPLACE_WITH_VERSION_ID",
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "REPLACE_WITH_INSTANCE_ID"
  },
  "id": "REPLACE_WITH_WORKFLOW_ID",
  "tags": []
}