// For more information on configuring authentication, please visit http://go.microsoft.com/fwlink/?LinkId=301864
public void ConfigureAuth(IAppBuilder app)
{
// Configure the db context and user manager to use a single instance per request
//app.CreatePerOwinContext(ApplicationDbContext.Create);
//app.CreatePerOwinContext<ApplicationUserManager>(ApplicationUserManager.Create);
//app.UseExternalSignInCookie(DefaultAuthenticationTypes.ExternalCookie);
app.UseNestAuthentication(new NestAuthenticationOptions());
}