c# - 在 asp.net web API 中将路由参数映射为 bool

Question

所以我现在注册了以下路线:

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

Controller 如下所示:

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

我想向 Controller 添加 bool 参数 - isPreview 并希望按以下方式映射路由:

1. http://host/api/mediahandler/download/1893映射到:id=1893，isPreview=false
2. http://host/api/mediahandler/download/1893/preview映射到:id=1893，isPreview = true

有什么办法可以实现这一点吗？

Answer 1

与 attribute routing你可以这样做

[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
      }
}