An example of using WCF callbacks with Web API for handling long-running tasks. More information on this example can be found here: http://volgarev.me/blog/re-discovering-microsoft-web-api.

1. Open the solution and build it.
2. Start command prompt as Administrator and run WebApi.BackgroundWorker.Host.exe.
3. Run WebApi.SitemapService by setting it as default project and pressing F5 afterwards.

The generated sitemap is neither pretty nor semantically correct.