Kortingscode::postUpdate
========================


.. code-block:: json

   {
     "version": "0.1",
      "data": {
        "id": 61,
        "naam": "Zomerdeal kano",
        "code": "KANOZOMER25",
        "datum_begin": "2025-06-01",
        "datum_eind": "2025-08-31",
        "kortingspercentage": 25,
        "toepasbaar_zonder_arrangement": true,
        "valid_days": "{\"1\":true,\"2\":true,\"3\":true,\"4\":true,\"5\":true,\"6\":true,\"7\":true}",
        "created_at": "2025-05-15T09:00:00+00:00",
        "updated_at": "2025-06-01T10:10:00+00:00"
      },
     "meta": {}
   }

Explanation:

- **id**: integer.
- **naam**: string.
- **code**: string.
- **datum_begin**: date. ISO date `YYYY-MM-DD`.
- **datum_eind**: date. ISO date `YYYY-MM-DD`.
- **kortingspercentage**: integer.
- **toepasbaar_zonder_arrangement**: boolean.
- **valid_days**: string. JSON object mapping day numbers `1..7` to booleans, e.g. `{"1":true,"2":true,...}`.
- **created_at**: ISO 8601 creation datetime string.
- **updated_at**: ISO 8601 last update datetime string.