How can I incorporate Google Charts into QuickBase?

Thanks.  My question is basically how to implement the API call.  Would I create the report first in QuickBase and then grab the URL from that report; then incorporate that URL in the result below?

function doGet(){
  var result = UrlFetchApp.fetch('?act=API_GenResultsTable&jsa=1');
  var json = Utilities.jsonParse(result.getContentText());
  var top_users = json.top_users;
}