The simplest webhook system for Optimizely Content Cloud

Startup.cs

public void Configuration(IAppBuilder app)
{
  // This is the URL template to call
  // The placeholders are optional -- they will be replaced with data specific to the content that is published
  var webhookUrl = "https://example.com?id={id}&type={type}&version={version}";
  
  // Here is an example URL that would be called for this example:
  // https://example.com?id=17&type=ArticlePage&version=691
  
  var events = ServiceLocator.Current.GetInstance<IContentEvents>();
  events.PublishedContent += (s, e) =>
  {
    // Get the type name
    var typeRepository = ServiceLocator.Current.GetInstance<IContentTypeRepository>();
    var typeName = typeRepository.Load(e.Content.ContentTypeID);

    // Form the specific URL for *this* webhook call
    var url = webhookUrl
        .Replace("{id}", e.ContentLink.ID.ToString())
        .Replace("{type}", typeName.Name)
        .Replace("{version}", e.ContentLink.WorkID.ToString());

    // Call it in a new thread
    // Note: errors will be swallowed; implement logging as you see fit
    Task.Run(() =>
    {
        var webClient = new WebClient();
        webClient.DownloadStringAsync(new Uri(url));
    });
  };
  
  // More startup code here...
}