title: Adding a hook to globally log all node HTTP responses in node.js / express
body: <p>I'm using node.js and express to handle HTTP requests and responses. By using the <code>http.ServerRequest</code>  event, I can add a hook in and log HTTP requests. There doesn't seem to be a similiar event for <code>http.ServerResponse</code> and I am wondering how to log all the HTTP responses with one piece of code that my server sends?</p>