Is it possible to assign a global setting to AddJsonOptions to not allow duplicate values to be passed?
For example, if I send the following JSON I want the JSON not to validate.
{
    "firstName": "Bob",
    "firstName": "Smith",
    "firstName": "Bobby",
}
I'd assumed there would be a setting somewhere in AddJsonOptions somewhere but I can't find anything. I'd be happy to hear if this is possible any other way if not in AddJsonOptions.
 
    