curl --request GET \
  --url https://api.partoo.co/v2/custom_fields/section \
  --header 'x-APIKey: <api-key>'

{
  "sections": [
    {
      "id": 1,
      "name": "Section A",
      "order": 3
    },
    {
      "id": 2,
      "name": "Section B",
      "order": 4
    },
    {
      "id": 3,
      "name": "Section C",
      "order": 5
    }
  ]
}