Hourly Publishing Health Monitor with Slack Alerts

The workflow JSON

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{
  "name": "03 \u2014 Publishing health monitor",
  "nodes": [
    {
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "hours",
              "hoursInterval": 1
            }
          ]
        }
      },
      "id": "trigger-hourly",
      "name": "Every hour",
      "type": "n8n-nodes-base.scheduleTrigger",
      "typeVersion": 1.2,
      "position": [
        240,
        300
      ]
    },
    {
      "parameters": {
        "method": "GET",
        "url": "=http://host.docker.internal:4000/api/content/_meta/counts",
        "options": {}
      },
      "id": "http-counts",
      "name": "GET state counts",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        480,
        300
      ]
    },
    {
      "parameters": {
        "jsCode": "const counts = $input.first().json.counts || [];\nconst byState = {};\nfor (const r of counts) byState[r.state] = r.count;\nconst failed = byState.failed || 0;\nconst stuckGenerating = byState.video_generating || 0;\nconst alert = failed >= 3 || stuckGenerating >= 5;\nreturn [{ json: { alert, failed, stuckGenerating, summary: byState } }];"
      },
      "id": "analyze",
      "name": "Analyze health",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        720,
        300
      ]
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "leftValue": "={{ $json.alert }}",
              "rightValue": true,
              "operator": {
                "type": "boolean",
                "operation": "true",
                "singleValue": true
              }
            }
          ]
        }
      },
      "id": "if-alert",
      "name": "If alert",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        960,
        300
      ]
    },
    {
      "parameters": {
        "method": "POST",
        "url": "={{ $env.SLACK_WEBHOOK_URL }}",
        "sendBody": true,
        "specifyBody": "json",
        "jsonBody": "={ \"text\": \":warning: *social-agent health alert*\\nFailed: \" + $json.failed + \"\\nStuck generating: \" + $json.stuckGenerating + \"\\n\\n```\" + JSON.stringify($json.summary, null, 2) + \"```\" }",
        "options": {}
      },
      "id": "slack-alert",
      "name": "Slack alert",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        1200,
        240
      ]
    }
  ],
  "connections": {
    "Every hour": {
      "main": [
        [
          {
            "node": "GET state counts",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "GET state counts": {
      "main": [
        [
          {
            "node": "Analyze health",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Analyze health": {
      "main": [
        [
          {
            "node": "If alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "If alert": {
      "main": [
        [
          {
            "node": "Slack alert",
            "type": "main",
            "index": 0
          }
        ],
        []
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "active": false,
  "versionId": "1",
  "tags": [
    "social-agent",
    "monitoring"
  ]
}

About this workflow

03 — Publishing health monitor. Uses httpRequest. Scheduled trigger; 5 nodes.

Source: https://github.com/anthonyonazure/social-agent/blob/main/n8n/workflows/03-publishing-monitor.json — original creator credit. Request a take-down →

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