Angular 2 firebase authenticating
<p>I'm using Angular 2 with Firebase. I'm using the Angular angularfire2 package to use firebase.</p>

<ol>
<li><p>How I can get the user ID from the firebase <code>auth</code> variable once the user is logged in?
I tried to <code>console.log(auth);</code> and couldn't find any assosication to <code>id</code>.</p></li>
<li><p>Is it possible to query the <code>Auth</code> user list? that seem like Firebase is not adding the users to the database, but to the <code>Auth</code> section in the console. </p></li>
<li><p>Is it possible to assign roles and additional user information to users in the <code>Auth</code> console? Or I have to creae <code>user</code> table and store this data myself?</p></li>
</ol>