Event handler using Job Manager or Replication Agent with Transport Handler and Content Builder

Hi @aemnewbie ,

AEM already have functionality for invalidating cache(dispatcher flush agent) and that is recommended to use always as possible. 

However, each entity may need some customization for some reason - in this case if you still want to export content path info, you have plenty of options to achieve it. One that suits here is 

• Event Listener 
• JCR Observer

You can implement and trigger it based on page activation then perform passing them to external agency though servlet API.

Piece of code sharing here for the same 

try{
      //retrieve the request parameters
      String handle = request.getParameter("handle");
      String page = request.getParameter("page");

      //hard-coding connection properties is a bad practice, but is done here to simplify the example
      String server = "localhost";
      String uri = "/dispatcher/invalidate.cache";

      HttpClient client = new HttpClient();

      PostMethod post = new PostMethod("https://"+host+uri);
      post.setRequestHeader("CQ-Action", "Activate");
      post.setRequestHeader("CQ-Handle",handle);

      StringRequestEntity body = new StringRequestEntity(page,null,null);
      post.setRequestEntity(body);
      post.setRequestHeader("Content-length", String.valueOf(body.getContentLength()));
      client.executeMethod(post);
      post.releaseConnection();
      //log the results
      logger.info("result: " + post.getResponseBodyAsString());
      }
  }catch(Exception e){
      logger.error("Flushcache servlet exception: " + e.getMessage());
  }

Reference: https://github.com/AdobeDocs/experience-manager-dispatcher.en/blob/main/help/using/page-invalidate.md

Hope that helps!

Regards,

Santosh