title: AWS s3 listobjects with pagination
body: <p>I want to implement pagination using aws s3. There are 500 files in object ms.files but i want to retrieve only 20 files at a time and next 20 next time and so on.</p>
  
  <pre><code>var params = {
    Bucket: 'mystore.in',
    Delimiter: '/',
    Prefix: '/s/ms.files/',
    Marker:'images',
  };
  s3.listObjects(params, function(err, data) {
    if (err) console.log(err, err.stack); 
    else     console.log(data);          
  });
  </code></pre>