Как сделать progress bar, yii2 + ajax?

$.ajax({
                url: "http://185.8.213.9/converter/progress",
                dataType: "JSON",
                data: {file:file},
        
                success: function(data){
                    document.getElementById('progress').style.width = data; 

                }
        
            });

<div class="progress">
  <div class="progress-bar" id="progress" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100">
    60%
  </div>
</div>