Difference between FetchRequest and ClaimsRequest

Question

As I understand both can be used to request, say, e-mail from OP. What's the difference and which one is preferred?

Answer 1

ClaimsRequest is intended to use the standard claims defined by OpenID (Simple Registration).

Use FetchRequest if you need to extend the claims provided by simple registration. For instance:

> var fr = new FetchRequest();
> fr.Attributes.AddRequired("DepartamentID");
> AuthenticationRequest.AddExtension(fr);