// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddDbContext <BookStoreContext>(opt => opt.UseInMemoryDatabase("BookLists"));
services.AddDbContext <CustomerOrderContext>(opt => opt.UseInMemoryDatabase("CustomersLists"));
services.AddControllers();
services.AddOData(opt => opt.AddModel("odata", EdmModelBuilder.BuildBookModel()).
AddModel("v{version}", EdmModelBuilder.BuildCustomerModel()).Count() /*.EnableAttributeRouting = false*/);
}