ASP.NET Core MVC 2.0 Cookbook

How to do it...

1. First, the class we create has to implement IRouter and the RouteAsync method:

public class ProductsRouter : IRouter 
{ 
        private readonly Route _innerRoute; 
        public VirtualPathData GetVirtualPath 
(VirtualPathContext context) 
        { return null; } 
 
        public Task RouteAsync(RouteContext context) 
        { 
            // Test QueryStrings 
            var qs = context.HttpContext.Request.Query; 
            var price = qs["price"]; 
 
            if(string.IsNullOrEmpty(price)) 
            { return Task.FromResult(0); } 
 
            var routeData = new RouteData(); 
            routeData.Values["controller"] = "Products"; 
            routeData.Values["action"] = "Details"; 
            routeData.DataTokens["price"] = price; 
            context.RouteData = routeData; 
 
            return _innerRoute.RouteAsync(context); 
        } 
} 

2. Next, let's create an extension method to add this route ...