curl --request POST \
  --url https://api.example.com/api/Configuration/date-groups \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "description": "<string>",
  "dates": [
    {
      "id": 123,
      "dateGroupID": 123,
      "date": "2023-11-07T05:31:56Z",
      "description": "<string>"
    }
  ]
}
'

{
  "value": 123
}