curl --request POST \
  --url 'https://api.flashcat.cloud/schedule/create?app_key=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "schedule_name": "Production On-Call",
  "description": "Primary on-call rotation for the production team",
  "team_id": 4291079133131,
  "layers": [
    {
      "layer_name": "Layer 1",
      "name": "Layer 1",
      "mode": 0,
      "weight": 0,
      "hidden": 0,
      "groups": [
        {
          "group_name": "A",
          "name": "A",
          "members": [
            {
              "role_id": 0,
              "person_ids": [
                2451002751131
              ]
            }
          ],
          "start": 0,
          "end": 0
        },
        {
          "group_name": "B",
          "name": "B",
          "members": [
            {
              "role_id": 0,
              "person_ids": [
                2476123212131
              ]
            }
          ],
          "start": 0,
          "end": 0
        }
      ],
      "rotation_unit": "day",
      "rotation_value": 1,
      "rotation_duration": 86400,
      "handoff_time": 0,
      "enable_time": 1712000000,
      "expire_time": 0,
      "restrict_mode": 0,
      "restrict_start": 0,
      "restrict_end": 0,
      "restrict_periods": [],
      "day_mask": {
        "repeat": [
          1,
          2,
          3,
          4,
          5
        ]
      },
      "fair_rotation": false,
      "mask_continuous_enabled": false
    }
  ],
  "notify": {
    "advance_in_time": 300,
    "fixed_time": null,
    "by": {
      "follow_preference": true,
      "personal_channels": null
    },
    "webhooks": null
  }
}
'

{
  "request_id": "01HK8XQE3Z7JM2NTFQ5YJ8P9R4",
  "data": {
    "schedule_id": 6294534917601
  }
}