# Cookbook: Resources - Buzz

Work in Progress This page is currently being revised. It might be incomplete or contain inaccuracies.

External resources are URLs that provide JSON data, which are then rendered with the help of templates. angular has a resource factory that can be used to give names to the URLs and then attach behavior to them. For example you can use the Google Buzz API to retrieve Buzz activity and comments.

        <script>
        BuzzController.$inject = ['$resource'];
        function BuzzController($resource) {
         this.Activity = $resource(
          'https://www.googleapis.com/buzz/v1/activities/:userId/:visibility/:activityId/:comments',
          {alt: 'json', callback: 'JSON_CALLBACK'},
          { get:     {method: 'JSON', params: {visibility: '@self'}},
            replies: {method: 'JSON', params: {visibility: '@self', comments: '@comments'}}
          });
        }
        BuzzController.prototype = {
         fetch: function() {
          this.activities = this.Activity.get({userId:this.userId});
         },
         expandReplies: function(activity) {
          activity.replies = this.Activity.replies({userId: this.userId, activityId: activity.id});
         }
        };
        </script>
        <div ng:controller="BuzzController">
         <input name="userId" value="googlebuzz"/>
         <button ng:click="fetch()">fetch</button>
         <hr/>
         <div class="buzz" ng:repeat="item in activities.data.items">
          <h1 style="font-size: 15px;">
           <img ng:src="{{item.actor.thumbnailUrl}}" style="max-height:30px;max-width:30px;"/>
           <a ng:href="{{item.actor.profileUrl}}">{{item.actor.name}}</a>
           <a href ng:click="expandReplies(item)" style="float: right;">
            Expand replies: {{item.links.replies[0].count}}
           </a>
          </h1>
          {{item.object.content | html}}
          <div class="reply" ng:repeat="reply in item.replies.data.items" style="margin-left: 20px;">
           <img ng:src="{{reply.actor.thumbnailUrl}}" style="max-height:30px;max-width:30px;"/>
           <a ng:href="{{reply.actor.profileUrl}}">{{reply.actor.name}}</a>:
           {{reply.content | html}}
          </div>
         </div>
        </div>

      it('fetch buzz and expand', function() {
        element(':button:contains(fetch)').click();
        expect(repeater('div.buzz').count()).toBeGreaterThan(0);
        element('.buzz a:contains(Expand replies):first').click();
        expect(repeater('div.reply').count()).toBeGreaterThan(0);
      });