如何将camel case中的JSON转换回Web API中的pascal case？

Question

我已经返回json到camelcase使用,

formatter.SerializerSettings.ContractResolver = new CamelCasePropertyNamesContractResolver();

像这样:

Data : Contacts: [{ GivenName: "Matt", FamilyName:"Berry" }]
result json:  contacts: [{ givenName: "Matt", familyName:"Berry" }]

如何在Web API中找回原始数据(pascal案例数据)？