curl --request POST \
  --url 'https://api.flashcat.cloud/webhook/history/detail?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "event_id": "20260412Xatt9hrXsgmFkBR78WF655",
  "integration_id": 6113996590131
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "integration_id": 5321026051131,
    "event_id": "20260412Xatt9hrXsgmFkBR78WF655",
    "webhook_type": "alert",
    "event_type": "a_update",
    "channel_id": 2551105804131,
    "ref_id": "69da3f0ef77b1b51f40e83cc",
    "request_headers": "{\"Content-Type\":\"application/json\"}",
    "request_body": "{\"event_type\":\"a_update\",\"event_id\":\"d789d65951c0532ea9b6a1d99b707054\"}",
    "endpoint": "https://example.com/webhook",
    "attempt": 1,
    "duration": 132,
    "status": "success",
    "status_code": 200,
    "response_headers": "{\"Content-Type\":\"application/json\"}",
    "response_body": "{\"ok\":true}",
    "event_time": "2026-04-12T13:31:11.357472+08:00",
    "ref_title": "High CPU Usage on host-01",
    "channel_name": "Production Alerts"
  }
}