Asp .Net Core Json deserialize to model - json

Question

Returns Json format data to me from an api.
However, the type of the "FuelType" property inside the object may be different. For example, 1 time comes as follows:
{
...
fuelType: "gasoline"
...
}}
But then it can happen:
{
...
fuelType: ["gasoline", "any"]
...
}}
If I set the "FuelType" property type on my model to a string, in the second case, Json will give me an error when it arrives, because it can't convert from array to string. No, if I set the type to an array, then, conversely, if a string arrives, it will issue an error because it cannot convert from a string to an array.
In this case, what should I put the "FuelType" property type in my model so that it does not make an error when deserializing?

Answer 1

It all depends on you,what type of value you want to receive?string or List?
I tried with the codes:
public class SomeModel
{
public SomeModel()
{
fuelType = new List<string>();
}
public int Id { get; set; }
public string Name { get; set; }
public List<string> fuelType { get; set; }
//you could move the codes to someservice
public List<string> someresult(string a)
{
var targetlist = new List<string>();
targetlist.Add(a);
return targetlist;
}
public List<string> someresult(List<string> a)
{
var targetlist = new List<string>();
targetlist.AddRange(a);
return targetlist;
}
}
[HttpPost]
public JsonResult SomeAction()
{
var somemodel = new SomeModel() { Id = 1, Name = "name" };
var somevalue = /*"a"*/new List<string>() { "a", "b", "c" };
var targetvalue = somemodel.someresult(somevalue);
somemodel.fuelType.AddRange(targetvalue);
return new JsonResult(somemodel);
}
Result:

Answer 2

try this
var fuelType = JsonConvert.DeserializeObject<MyClass>(json);
public class MyClass
{
[JsonProperty("fuelType")]
private JToken _fuelType;
[JsonIgnore]
public string[] fuelType
{
get {
if (_fuelType==null) return null;
return _fuelType is JArray ? _fuelType.ToObject<string[]>() : new string[] { (string)_fuelType }; }
set { _fuelType = JsonConvert.SerializeObject(value); }
}
}