title: S3 putObject callback not returning expected objects
body: <p>I want to get the link of the file (or file name is also fine) after I uploaded my image to S3. I upload using below code and it worked.</p>
  
  <pre><code>s3Bucket.putObject(data, function(err, data){
          if (err) { 
            console.log(err);
            res.send({result:0});
          } else {
            res.send({result:1});
            console.log(data)
          }
      });
  </code></pre>
  
  <p>But in the callback data it has only 1 property, the etag. In the doc it clearly stated it has other object, so how do I get the path of the uploaded file? </p>