Retrieving Query strings in Web API

Question

For an already agreed (between customer and us) URL like,

http://URL/companyapi/orders/100191/sendrequest?for=customer123&card=123451

I am defining a route map like this:

public static void Register(HttpConfiguration config)
{
   config.Routes.MapRoute(
                 name: "Service",
                 routeTemplate: "companyapi/orders/{orderId}/{controller},
                 default: new{},
                 );
}

For retrieving other query string parameters, I think it is enough if I do this:

public void Get(string for, int card)
{
        // How to retrieve the orderId ?
}

1. How to retrieve the orderId because it comes before controller portion in the route Template?

2. Is it perfectly normal to leave the default part of the MapRoute function?

Answer 1

Please add orderId parameter to Get Method.

public void Get(int orderId, string for, int card)
{
        // How to retrieve the orderId ?
}

and change RouteConfig.cs file

public static void Register(HttpConfiguration config)
{
   config.Routes.MapRoute(
                 name: "Service",
                 routeTemplate: "companyapi/orders/{orderId}/{controller},
                 default: new{},
                 );
}

to

public static void Register(HttpConfiguration config)
{
   config.Routes.MapRoute(
                 name: "Service",
                 routeTemplate: "companyapi/orders/{controller},
                 default: new{},
                 );
}