Startup class missing from asp.net mvc visual studio 2013?

Question

I have visual studio 2013 express edition and when I created the asp.net web application project I am unable to see startup class. I am following tutorials on Identity authentication and authorization and that guy has startup class by default in addition I want to know what that class does ? and how can I get it ?

Answer 1

Create One Class With Name Startup this will help you..

public class Startup
{
   public void Configuration(IAppBuilder app)
   {
      app.MapSignalR();
   }
}