HTTP Middleware is one of the best facilities Laravel 5 ships with. It not only adds extra security to your application but also gives you enough freedom to create your own security mechanism alongside the default Laravel Authentication mechanism. As you know already, when a user requests for a page, the browser sends the request and the server responds. Sometimes, this requestresponse mechanism is simple and sometimes it is fairly complicated. But at the end of the day whenever a user requests for a page a HTTP request enters your application.