title: Polymerfire - creating data after an event
body: <p>I'm using the firebase/polymerfire package from bower <em>bower install firebase/polymerfire</em> </p>
  
  <p>how can i create some data in the database after a method has been triggered? </p>
  
  <p>The document tag looks like it will display and update data. I would like to, when a user signs up, create some data for the user to use.</p>
  
  <pre><code>app.signInAnonymously = function() {
          this.error = null;
          this.$.auth.signInAnonymously();
          // add default data for the user template
        };
  </code></pre>
  
  <p>How can i use the default set() or push methods like the normal SDK?</p>
  
  <p>How can i call this on an event from JavaScript?</p>
  
  <p>When trying to bind a path to my document like</p>
  
  <pre><code>&lt;firebase-document
   path="/"
   data="{{firebaseData}}"&gt;
  &lt;/firebase-document&gt;
  
  
   {{firebaseData}}
  </code></pre>
  
  <p>the data won't display, but I have authentication working.</p>