Contensis Razor Breadcrumb - webAPI only

Breadcrumb.cshtml

@using Contensis.Framework.Web;
<ul>
<li>
You are here:
</li>
   
@breadcrumb(CurrentNode)    
   
@helper breadcrumb(Node node)
{
   <!-- node depth,@node.Path == @node.Depth -->
   if(node.Depth>0)
   {
       var parent = node.Parent;
       if (node is ContentNode)
       {
           ContentNode contentNode = (ContentNode) node;
           if(contentNode.IsHomePage)
           {
               parent=parent.Parent;
           }
       }
       @breadcrumb(parent)  
   }
   <li>
           @if(node==CurrentNode)
           {
               @node.Title
           }   
           else
           {
   	 <a href="@node.Path">@node.Title</a>
           }
</li>    
   
}
</ul>