title: How do I use the current user's username as a Router parameter in iron:router
body: <p>I have a <code>'profile'</code> template where I will display user related stuffs. So I wanna make a route for the template, but in the <code>'path'</code> I want to dynamically insert the current user's username. Just the way we dynamically change the url with regard to post's id and everything.
  Here's the router code block as of now.  </p>
  
  <pre><code>Router.map(function() {
  
      this.route('profile', {
          path: '/profile', //here instead of 'profile' I wanna dynamically insert the current user's username.
      });
  });
  </code></pre>
  
  <p>By the way, I was able to load the user related data's to the said template.
  I tried loading the username(<code>/username</code>) to the route path in a trial and error way, but in vain. :(<br>
  I guess I'm not very good with Iron Router after all. Please help.</p>