Managecallai - Missed Call Follow Up

The workflow JSON

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{
  "name": "ManageCallAI - Missed Call Follow Up",
  "meta": {
    "templateId": "managecallai-missed-call",
    "templateCredsSetupCompleted": true
  },
  "nodes": [
    {
      "id": "e0010000-0001-0001-0001-000000000001",
      "name": "Webhook Trigger",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        240,
        300
      ],
      "parameters": {
        "httpMethod": "POST",
        "path": "managecall-missed-call",
        "responseMode": "onReceived",
        "options": {
          "rawBody": true
        }
      },
      "notes": "Subscribe to: call.completed"
    },
    {
      "id": "e0010000-0001-0001-0001-000000000002",
      "name": "Verify Signature",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        460,
        300
      ],
      "parameters": {
        "jsCode": "const crypto = require('crypto');\nconst item = $input.first().json;\nconst h = item.headers ?? {};\nconst ts = parseInt(h['x-managecall-timestamp'] ?? '0', 10);\nif (Math.abs(Date.now() / 1000 - ts) > 300) throw new Error('timestamp_expired');\nconst body = typeof item.body === 'string' ? item.body : JSON.stringify(item.body ?? {});\nconst expected = 'sha256=' + crypto.createHmac('sha256', $env.MANAGECALL_WEBHOOK_SECRET).update(`${ts}.${body}`).digest('hex');\nif (!crypto.timingSafeEqual(Buffer.from(expected), Buffer.from(h['x-managecall-signature-256'] ?? ''))) throw new Error('invalid_signature');\nreturn $input.all();"
      }
    },
    {
      "id": "e0010000-0001-0001-0001-000000000003",
      "name": "Build Missed Call Case",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        680,
        300
      ],
      "parameters": {
        "jsCode": "const payload = $input.first().json.body ?? {};\nconst data = payload.data ?? {};\nconst disposition = String(data.disposition ?? '').toLowerCase();\nconst missed = disposition.includes('no_answer') || disposition.includes('missed') || disposition.includes('busy');\nif (!missed) return [];\nreturn [{ json: { tenant_id: payload.tenant_id, event_id: payload.event_id, call_id: data.call_id, from_number: data.from_number, to_number: data.to_number, occurred_at: payload.timestamp } }];"
      }
    },
    {
      "id": "e0010000-0001-0001-0001-000000000004",
      "name": "Notify CRM",
      "type": "n8n-nodes-base.httpRequest",
      "typeVersion": 4.2,
      "position": [
        900,
        300
      ],
      "parameters": {
        "method": "POST",
        "url": "={{ $env.CRM_MISSED_CALL_URL }}",
        "sendBody": true,
        "contentType": "json",
        "body": {
          "tenant_id": "={{ $json.tenant_id }}",
          "event_id": "={{ $json.event_id }}",
          "call_id": "={{ $json.call_id }}",
          "from_number": "={{ $json.from_number }}",
          "to_number": "={{ $json.to_number }}",
          "occurred_at": "={{ $json.occurred_at }}"
        }
      }
    }
  ],
  "connections": {
    "Webhook Trigger": {
      "main": [
        [
          {
            "node": "Verify Signature",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Verify Signature": {
      "main": [
        [
          {
            "node": "Build Missed Call Case",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Build Missed Call Case": {
      "main": [
        [
          {
            "node": "Notify CRM",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "e0010000-0001-0001-0001-000000000099"
}

About this workflow

ManageCallAI - Missed Call Follow Up. Uses httpRequest. Webhook trigger; 4 nodes.

Source: https://github.com/gokbilge/manageCallAI/blob/main/docs/examples/n8n/missed-call.json — original creator credit. Request a take-down →

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