person.md

Assuming you have the following object:

public class Person { 
    
    public string Name { get; set; }
    public string Surname { get; set; }
    public int Age { get; set; }
}

and got a PATCH request as below:

[{"replace": "/name", "value": "tugberk"}]

and assuming we have a json-patch formatter. Wouldn't you get the following result?

public class PeopleController : ApiController { 

    //new Person { Name = "tugberk", Surname = null, Age = 0 }
    public Person PatchPerson(Person person) { 
        
        //...
    }
}

Yes, right. That's really the hard part and it would change depending on the data store system you use.