TreeRoute

This message handler is an an alternative to using the standard HttpRoute class in a Web API project to route requests to controllers.

Basic usage:

You can build the tree manually in a similar way you build XDocuments, e.g.

   var treeRoute = new TreeRoute("api",
                                 new TreeRoute("Contact",
                                               new TreeRoute("{id}").To<FakeController>()));

to use the route, simply add it to your route collection.

   config.Routes.Add("mytreeroute",treeRoute);

You can also build the trees in a way that is similar to regular routes. e.g.

        var route = new TreeRoute("games");
        route.AddWithPath("{gametitle}/Setup/{gamesid}", r => r.To<SetupController>());
        route.AddWithPath("{gametitle}/Resources/{resourcetype}/{resourceid}", r => r.To<ResourceController>());
        route.AddWithPath("{gametitle}/{gameid}/Chat/{chatid}", r => r.To<ChatController>());
        route.AddWithPath("{gametitle}/{gameid}/State/{stateid}", r => r.To<StateController>());

Behind the scenes we do actually build a tree of TreeRoutes based on the paths provided.

Currently, RouteConstraints and RouteDefaults are not implemented.

Here is an example from some simple demo APIs I have built,

        var route = new TreeRoute("");

        route.AddWithPath("switch", r => r.To<SwitchController>());
        route.AddWithPath("switch/on", r => r.To<SwitchController>().ToAction("on"));
        route.AddWithPath("switch/off", r => r.To<SwitchController>().ToAction("off"));

        route.AddWithPath("expenseapp", r => r.To<ExpenseAppController>());
        route.AddWithPath("expenses", r => r.To<ExpensesController>());
        route.AddWithPath("expense/{expenseId}", r => r.To<ExpenseController>());
        route.AddWithPath("expense/{expenseId}/approve", r => r.To<ExpenseController>().ToAction("Approve"));
        route.AddWithPath("expense/{expenseId}/reject", r => r.To<ExpenseController>().ToAction("Reject"));
        route.AddWithPath("receipt", r => r.To<ReceiptController>());


        config.Routes.Add("",route);