How can I read a JSON with an array of objects?

{ "name": "JSON Example", "description": "This is an example of a JSON file with fields and an array of objects.", "creation_date": "2024-07-12", "status": "active", "items": [ { "id": 1, "name": "Item 1", "quantity": 10, "price": 29.99 }, { "id": 2, "name": "Item 2", "quantity": 5, "price": 19.99 }, { "id": 3, "name": "Item 3", "quantity": 20, "price": 39.99 } ] }

I tried to create a datatype with another datatype internally, then create a custom action to iterate over the datatype, but the data doesn't appear. The API call returns the data, but it is not applied to the page state. The datatype was created based on the JSON


Future<List<ProdutosVendidosSubStruct>> vendasCarrinhos(
    List<dynamic>? jsonArray) async {
  // convert json array into list of objects

  List<ProdutosVendidosSubStruct> listOfStruct = [];
  if (jsonArray != null) {
    for (var item in jsonArray) {
      listOfStruct.add(ProdutosVendidosSubStruct.fromMap(item));
    }
  }
  return listOfStruct;