Adicionar Item com preço fixo about marketplace HOT 3 CLOSED

internal static class CreateItemRequestExtension
{
    public static Price GetPrice(this CreateItemRequest request) =>
        request.Fixed 
            ? CreateFixedPrice(request) 
            : CreateRelativePrice(request);

    private static Price CreateFixedPrice(CreateItemRequest request) =>
        new Price(request.Fixed, request.FixedPrice.Value);

    private static IEnumerable<PriceInterval> GetPriceIntervals(this CreateItemRequest request) =>
        request.RelativePrice.Table
            .Select(i => new PriceInterval(i.Start, i.End, i.Value));

    private static RelativePrice GetRelativePrice(this CreateItemRequest request) =>
        new RelativePrice(request.GetPriceIntervals());

    private static Price CreateRelativePrice(CreateItemRequest request) =>
        new Price(request.GetRelativePrice());
}

{
 "Name": "Nome do item",
 "Price": {"Value": "10.00"},
 "Fixed": true 
}

{
  "name": "string",
  "fixed": true,
  "fixedPrice": {
    "value": 0
  },
  "relativePrice": {
    "table": [
      {
        "start": 0,
        "end": 0,
        "value": 0
      }
    ]
  }
}

{
  "name": "string",
  "fixed": true,
  "fixedPrice": {
    "value": 0
   }
}

{
  "name": "string",
  "fixed": false,
  "relativePrice": {
    "table": [
      {
        "start": 0,
        "end": 0,
        "value": 0
      }
    ]
  }
}

{
  "name": "string",
  "fixed": true,
  "fixedPrice": {
    "value": 0
   }
}

{
  "name": "string",
  "fixed": false,
  "relativePrice": {
    "table": [
      {
        "start": 0,
        "end": 0,
        "value": 0
      }
    ]
  }
}