Attribute routing not working and throwing 404 error in URL

Question

I applied Attribute routing to my RouteConfig.cs and added [Route("Store")] attribute on Action but getting error when access the url.

Working URL is http://localhost:52859/shop/store/dominos

I want it to change to http://localhost:52859/store/dominos

But post updating Attribute routing I see error on page as

Server Error in '/' Application. Runtime Error Description: An exception occurred while processing your request. Additionally, another exception occurred while executing the custom error page for the first exception. The request has been terminated.

and in URL it shows as

http://localhost:52859/Errors/Error404?aspxerrorpath=/shop/store/dominos

Updated in RouteConfig

routes.MapMvcAttributeRoutes();

Action to call Stores

// GET: /shop/category/name
        [Route("Store")]
        public ActionResult Store(string name)
        {
            // Declare a list of Coupons
            List<Coupn> coupnList;


            using (ApplicationDbContext db = new ApplicationDbContext())
            {

                // Get store id
                Store storeDTO = db.Store.Where(x => x.Slug == name).FirstOrDefault();
                int storeId = storeDTO.StoreID;
                ViewBag.TopDesc = storeDTO.TopDesc;
                ViewBag.MainDesc = storeDTO.MainDesc;
                ViewBag.StoreLogo = storeDTO.StoreLogo;
                ViewBag.StoreName = storeDTO.StoreName;


                // Init the list
                coupnList = db.Coupns.ToArray().Where(x => x.StoreID == storeId).ToList();

                // Get Store     name
                var coupnStore = db.Coupns.Where(x => x.StoreID == storeId).FirstOrDefault();
                ViewBag.StoreName = coupnStore.StoreName;

            }

            // Return view with list
            return View(coupnList);
        }

Help on this is much appreciated.

Answer 1

You need to change the route at the Controller level for the URL you want to use to work and set the action route to "{name}". Like this:

[Route("Store")]
public class StoreController: Controller
{
    // GET: /store/name
    [Route("{name}")]
    public ActionResult Store(string name)
    {
        // Declare a list of Coupons
        List<Coupn> coupnList;


        using (ApplicationDbContext db = new ApplicationDbContext())
        {

            // Get store id
            Store storeDTO = db.Store.Where(x => x.Slug == name).FirstOrDefault();
            int storeId = storeDTO.StoreID;
            ViewBag.TopDesc = storeDTO.TopDesc;
            ViewBag.MainDesc = storeDTO.MainDesc;
            ViewBag.StoreLogo = storeDTO.StoreLogo;
            ViewBag.StoreName = storeDTO.StoreName;


            // Init the list
            coupnList = db.Coupns.ToArray().Where(x => x.StoreID == storeId).ToList();

            // Get Store     name
            var coupnStore = db.Coupns.Where(x => x.StoreID == storeId).FirstOrDefault();
            ViewBag.StoreName = coupnStore.StoreName;

        }

        // Return view with list
        return View(coupnList);
    }
}

If you are working on ASP.NET MVC make sure to activate Routing:

public static void RegisterRoutes(RouteCollection routes)
{
    routes.IgnoreRoute(“{resource}.axd/{*pathInfo}”);

    routes.MapMvcAttributeRoutes();

    routes.MapRoute(
        name: “Default”,
        url: “{controller}/{action}/{id}”,
        defaults: new { controller = “Home”, action = “Index”, id = UrlParameter.Optional }
    );
}

If you are working on .Net Core:

public void Configure(
    IApplicationBuilder app,
    IWebHostEnvironment env
)
{
    app.UseRouting();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllers();
    });
}

Answer 2

Update your Route like [Route("~/[action]/{name}")].

Check this to get more details about Routing https://learn.microsoft.com/en-us/aspnet/core/mvc/controllers/routing?view=aspnetcore-3.1#attribute-routing-for-rest-apis

Your action will look like below.

[Route("~/[action]/{name}")]
public ActionResult Store(string name)
{
    // Your code
}