How to deserialize object as single item list? - asp.net-core

Question

I need to make a service that allows both next jsons as request body
{
"id": 1,
...
"foo": null
}
and
{
"id": [1, 2, 3],
...
"foo": null
}
I tried making the model like this
public class MyModel
{
public List<int> Id { get; set; }
//...
public string Foo { get; set; }
}
which works for the second case, but not for the first one, as an int is not a list of ints.
What can I do to be able to parse both bodies correctly?

Answer 1

You could deserialize into a dynamic object instead.
dynamic result = JsonConvert.DeserializeObject<dynamic>(json);
Another approach I'm not sure would work is to make the Id property dynamic.
public class MyModel
{
public dynamic Id { get; set; }
public string Foo { get; set; }
}

Answer 2

You can create Models like the following(Model includes all the properties except id):
public class MyModel
{
public List<int> id { get; set; }
public Model model { get; set; }
}
public class Model
{
//...
public string foo { get; set; }
}
And ckeck id in requestbody,if id is int type,create a new list and add id to the list.
MyModel myModel = new MyModel();
myModel.model=JsonConvert.DeserializeObject<Model>(jsonResult);
var mydata = JsonConvert.DeserializeObject<JObject>(jsonResult);
if (!mydata["id"].ToString().Contains("["))
{
myModel.id = new List<int> { Convert.ToInt32(mydata["id"]) };
}
else {
myModel.id = JsonConvert.DeserializeObject<List<int>>(mydata["id"].ToString());
}
result: