Hi, thanks for the response.

I'm not sure if an ApiController would be applicable to this situation. I would have thought an ApiController would be expecting to return either JSON, HTML or similar, not redirect/rewrite to another URL. Would you happen to have the thread reference so I can read the full context and see if it might be useful?

My initial thoughts were to declare and initialize a Custom Route, so that any request that starts with my nominated virtual folder e.g. .../docs/* or whatever I specify - gets routed to a dedicated controller that handles the request.

However, I'm unsure how to set up such a custom route, given the variable request URL.

You're right that approach won't work. Try this:

1. Alter Startup.cs Configure method, under .WidthEndpoints add something like this (u.EndpointRouteBuilder.MapControllerRoute...):

       app.UseUmbraco()
           .WithMiddleware(u =>
           {
               u.UseBackOffice();
               u.UseWebsite();
           })
           .WithEndpoints(u =>
           {
               u.UseInstallerEndpoints();
               u.UseBackOfficeEndpoints();
               u.UseWebsiteEndpoints();
               u.EndpointRouteBuilder.MapControllerRoute("sitemap", "sitemap.xml", new { controller = "Sitemap", action = "Sitemap" });
           });
   

   1. Add the sitemap controller, which looks like this: { public class SitemapController : UmbracoPageController, IVirtualPageController

      private readonly IUmbracoContextAccessor _umbracoContextAccessor;
      private readonly IPublishedValueFallback _publishedValueFallback;
      
      
      public SitemapController(ILogger<UmbracoPageController> logger,
      

      ICompositeViewEngine compositeViewEngine, IUmbracoContextAccessor umbracoContextAccessor, IPublishedValueFallback publishedValueFallback) : base(logger, compositeViewEngine) { _umbracoContextAccessor = umbracoContextAccessor; _publishedValueFallback = publishedValueFallback; }

      [HttpGet]
      public IActionResult Sitemap()
      {
          if (_umbracoContextAccessor.TryGetUmbracoContext(out var umbracoContext))
          {
              IPublishedContent rootNode = umbracoContext.Content.GetAtRoot().FirstOrDefault();
      

Thanks again for your time and input, but I don't think that's a solution I can use for this Umbraco-8 application.

I suspect that the requirement is to use this type of construct from the documentation - but the part that confuses me is the {action}/{id} of the path, and what my options for specifying the path are, as I'm basically interested in routing any request for /docs/* to MyDocsController

 RouteTable.Routes.MapRoute("MyDocs", "Docs/{action}/{id}",
            new
            {
                controller = "MyDocsController",
                action = "Index",
                id = UrlParameter.Optional
            });