title: auth in strongloop with pubsub bridge and client
body: <p>I have a question over how to use auth in a bridge. <a href="http://apidocs.strongloop.com/strong-pubsub-bridge/" rel="nofollow">Here</a> we can see the next:</p>
  
  <pre><code>bridge.before('connect', function(ctx, next) {
  if(ctx.auth.password !== '1234') {
  ctx.badCredentials = true;
  }
  next();
  });
  </code></pre>
  
  <p>On this example, I can access to ctx and check auth but, how can I include the auth from a client? In my client I do login in loopback with a user and get accessToken but I don't know how authenticate the client for publish in a channel.</p>
  
  <p>Thank!</p>