public IEnumerable <Claim> GetClaimsForUser(Guid userId)
{
var user = Users.Get(userId);
if (user == null)
{
throw new ArgumentException(nameof(userId) + "does not belong to any user");
}
var roleId = user.RoleId;
if (!roleId.HasValue)
{
throw new ArgumentException("user with given " + nameof(userId) + " does not belong to any role, and therefore has no claims.");
}
var claims = RoleClaims.GetClaimsForRole(roleId.Value);
return(claims);
}
