curl --request GET \
  --url https://docflow.textin.com/api/app-api/sip/platform/v2/category/fields/list \
  --header 'x-ti-app-id: <api-key>' \
  --header 'x-ti-secret-code: <api-key>'

{
  "code": 200,
  "msg": "<string>",
  "result": {
    "fields": [
      {
        "id": "1234567890",
        "name": "Invoice Code",
        "description": "Invoice code description",
        "enabled": 0
      }
    ],
    "tables": [
      {
        "id": "1234567890",
        "name": "Table1",
        "description": "Table description",
        "fields": [
          {
            "id": "1234567890",
            "name": "Invoice Code",
            "description": "Invoice code description",
            "enabled": 0
          }
        ]
      }
    ]
  }
}