Demo how to use prefix using path base

Startup.cs

   public void Configure (IApplicationBuilder app, IHostingEnvironment env) 
   {
       // [HMR] http://www.c-sharpcorner.com/article/using-hot-module-replacement-feature-of-webpack-in-asp-net-core/
       if (env.IsDevelopment ()) 
       {
         // ...

       } 
       else 
       {
           app.UseExceptionHandler ("/Home/Error");
       }

       // set base path just like concept of virtual directory
       app.UsePathBase($"/{Configuration.Get<ConfigModel>().APIBaseInfo.BasePath}"));

   }