map route parameter to bool in asp.net web API

Question

So I have registered the following route right now:

configuration.Routes.MapHttpRoute(
            name: "MediaHandler",
            routeTemplate: "api/mediahandler/{action}/{id}",
            defaults: new { controller = "PortalAsset", id = RouteParameter.Optional }
        );

And here is how the controller looks like:

 public class MediaHandlerController : ApiControllerBase
{
    ///...
      [HttpGet]
      [ActionName("download")]
      public async Task<HttpResponseMessage> DownloadAsset(long id)
      {
           // action
      }

I want to add boolean parameter to the controller - isPreview and want to map the routhe the following way:

http://host/api/mediahandler/download/1893 maps to: id=1893, isPreview=false
http://host/api/mediahandler/download/1893/preview maps to: id=1893, isPreview = true

Is there a way I can acomplish that?

You could do that with attribute routing. Any reason for choosing the default routing scheme over attribute routing? — schei1
– schei1, Commented Sep 14, 2016 at 13:04
@scheien the reason is that this is the single route scheme. By doing that by attributes I need to apply it to each action method or at least each controller. But for this case it might be what I need. Thanks for clue. — seeker
– seeker, Commented Sep 14, 2016 at 13:10
I see what you mean. You're welcome. Hope you'll sort it out. — schei1
– schei1, Commented Sep 14, 2016 at 13:22

Jakub Jankowski · Accepted Answer · 2016-09-14 13:29:32Z

3

With attribute routing you can do like this

[RoutePrefix("api/mediahandler/download")]
public class MediaHandlerController : ApiControllerBase
{
      [HttpGet]
      [Route("{id}")]
      public async Task<HttpResponseMessage> DownloadAsset(long id)
      {
           return DownloadAsset(id, false);
      }

      [HttpGet]
      [Route("{id}/preview")]
      public async Task<HttpResponseMessage> DownloadAssetPreview(long id)
      {
          return DownloadAsset(id, true);
      }

      private async Task<HttpResponseMessage> DownloadAsset(long id, bool isPreview)
      {
           // action
      }
}

edited Sep 14, 2016 at 13:29

answered Sep 14, 2016 at 13:05

Jakub Jankowski

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1 Comment

schei1 Over a year ago

You could put 'api/mediahandler' as a RoutePrefix attribute on the class to shorten the routes on the actions themselves.

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