curl --request POST \
  --url 'https://api.flashcat.cloud/incident/post-mortem/init?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "incident_ids": [
    "69bb9233331067560c718ecd"
  ],
  "template_id": "post_mortem_default_tmpl_en-us"
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "meta": {
      "account_id": 2451002751131,
      "title": "Postmortem1",
      "status": "published",
      "post_mortem_id": "8104935102bf89dc01ac638a5261fe7e",
      "template_id": "post_mortem_default_tmpl_en-us",
      "incident_ids": [
        "69bb9233331067560c718ecd"
      ],
      "media_count": 0,
      "author_ids": [
        2477273692131
      ],
      "team_id": 2477033058131,
      "channel_id": 3047621227131,
      "is_private": false,
      "channel_name": "Ops Channel",
      "created_at_seconds": 1773900354,
      "updated_at_seconds": 1773909012
    },
    "basics": {
      "incidents_highest_severity": "Warning",
      "incidents_earliest_start_seconds": 1761133512,
      "incidents_latest_close_seconds": 1761133632,
      "incidents_total_duration_seconds": 120,
      "responders": [
        {
          "person_id": 3790925372131,
          "assigned_at": 1761133515,
          "acknowledged_at": 0
        }
      ]
    },
    "content": {
      "content": "{\"type\":\"doc\",\"content\":[]}"
    },
    "follow_ups": ""
  }
}