[Question] How to deserialize ignoring missing properties?

[rafaelvascc]

Lets say i have a C# class like...

public class Person
{
    public string FirstName {get;set;}
    public string LastName {get;set;}
    public int? Age {get;set;}
}

and i'm trying to deserialize the following json...

{
    "firstName": "bob",
    "age": 30
}

What i get is an object with all properties as null.
if it try to deserialize the following json...

{
    "firstName": "bob",
    "lastName ": "dylan",
    "age": 30
}

I get the correct object with all properties.

Is there any way to deserialize a json text populating all existing properties and ignore the missing ones (the same behavior as Newtonsoft.Json)?
This is the only issue preventing us to fully replace Newtonsfot.Json with Utf8Json.

Thanks.

[fcortese2]

@rafaelvascc
You marked this as closed, did you manage to find a workaround? If so, would you mind sharing? Having same issue changing from Newtonsoft.Json to Utf8Json...