title: Web API Conditional Serialization of properties using attributes
body: <p>How to include/exclude properties from a WEB API response based on a user's role using attributes? For example:</p>
  
  <pre><code>public class Employee 
  { 
      public string FullName { get; set;}
  
      [DataMember(Role="SystemAdmin")] // included only for SystemAdmins
      public string SSN { get; set; }
  }
  </code></pre>