Attribute Routing for querystring

Question

I have below route URL:-

www.domanname.com/subroute/GetInfo?param1=somestring&param2=somestring

I have function in webapi as:-

public class HomeController : ApiController
{
    public object GetInfo(string param1,string param2)
    {}
}

To apply route:-

[RoutePrefix("subroute")]
public class HomeController : ApiController
{
    [Route("GetInfo?param1={param1:string}&param2={param2:string}")]
    public object GetInfo(string param1,string param2)
    {}
}

But after applying above URL:-

www.domanname.com/subroute/GetInfo?param1=somestring&param2=somestring

It is not able to find that URL

How can I design this particular route?

Answer 1

You need to modify the routes a bit as query string are not normally used in attribute routes. They tend to be used for inline route parameters.

[RoutePrefix("subroute")]
public class HomeController : ApiController {
    //Matches GET subroute/GetInfo?param1=somestring&param2=somestring
    [HttpGet]
    [Route("GetInfo")]
    public IHttpActionResult GetInfo(string param1, string param2) {
        //...
    }
}

Also

Enabling Attribute Routing

To enable attribute routing, call MapHttpAttributeRoutes during configuration. This extension method is defined in the System.Web.Http.HttpConfigurationExtensions class.

using System.Web.Http;

namespace WebApplication
{
    public static class WebApiConfig
    {
        public static void Register(HttpConfiguration config)
        {
            // Web API routes
            config.MapHttpAttributeRoutes();

            // Other Web API configuration not shown.
        }
    }
}

Reference Attribute Routing in ASP.NET Web API 2