{
  "nodes": [
    {
      "id": "send-weekly-workflow-failure-report-0",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        1080,
        1020
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "weeks",
              "weeksInterval": 1,
              "triggerAtDay": [
                0
              ],
              "triggerAtHour": 0,
              "triggerAtMinute": 0
            }
          ]
        }
      },
      "typeVersion": 1.1
    },
    {
      "id": "send-weekly-workflow-failure-report-1",
      "name": "Get all previous executions",
      "type": "n8n-nodes-base.n8n",
      "position": [
        1280,
        1018
      ],
      "parameters": {
        "resource": "execution",
        "returnAll": true,
        "filters": {
          "workflowId": {
            "__rl": true,
            "mode": "id",
            "value": "YOUR_N8N_WORKFLOW_ID"
          }
        }
      },
      "typeVersion": 1
    },
    {
      "id": "send-weekly-workflow-failure-report-2",
      "name": "Prepare the weekly report",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "parameters": {
        "mode": "runOnceForAllItems",
        "jsCode": "function report({state,workflow,now,chatId}){const items=state.items,workflowName=workflow.name;if(!Array.isArray(items)||typeof workflowName!=='string'||!workflowName.trim()||workflowName.startsWith('YOUR_')||typeof chatId!=='string'||!chatId.trim()||chatId.startsWith('YOUR_'))throw Error('Set the workflow name and Telegram chat');const t=Date.parse(now);if(!Number.isFinite(t))throw Error('Invalid report time');const lines=[];for(const e of items){if(!['canceled','crashed','error','new','running','success','unknown','waiting'].includes(e.status)||typeof e.startedAt!=='string'||!Number.isFinite(Date.parse(e.startedAt))||e.id===undefined||e.id===null)throw Error('Invalid execution');if(['error','crashed'].includes(e.status)&&Date.parse(e.startedAt)>t-604800000&&Date.parse(e.startedAt)<=t)lines.push(`⚠️ Workflow ${workflowName} failed. Execution ${e.id}; started ${e.startedAt}`)}const text=lines.join('\\n');if(text.length>4096)throw Error('Report exceeds the Telegram message limit');return {send:lines.length>0,text:text||'No unfinished executions',chatId,count:lines.length}}\n\nconst x=report({state:{items:$input.all().map(x=>x.json)},workflow:{name:'YOUR_N8N_WORKFLOW_NAME'},now:new Date().toISOString(),chatId:'YOUR_TELEGRAM_CHAT_ID'});return x.send?[{json:x}]:[];"
      }
    },
    {
      "id": "send-weekly-workflow-failure-report-3",
      "name": "Telegram",
      "type": "n8n-nodes-base.telegram",
      "position": [
        2100,
        1020
      ],
      "parameters": {
        "resource": "message",
        "operation": "sendMessage",
        "chatId": "={{ $json.chatId }}",
        "text": "={{ $json.text }}",
        "additionalFields": {
          "appendAttribution": false
        }
      },
      "typeVersion": 1.1
    }
  ],
  "pinData": {},
  "connections": {
    "Schedule Trigger": {
      "main": [
        [
          {
            "node": "Get all previous executions",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Get all previous executions": {
      "main": [
        [
          {
            "node": "Prepare the weekly report",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare the weekly report": {
      "main": [
        [
          {
            "node": "Telegram",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "name": "Send a Weekly Workflow Failure Report",
  "settings": {
    "timezone": "UTC"
  },
  "active": false
}