function getQueryStringValue (key) {
  return decodeURIComponent(window.location.search.replace(new RegExp("^(?:.*[&\\?]" + encodeURIComponent(key).replace(/[\.\+\*]/g, "\\$&") + "(?:\\=([^&]*))?)?.*$", "i"), "$1"));  }

if(getQueryStringValue("api")) {
  var stack = [];
  Papa.parse(getQueryStringValue("api"), {
    download: true,
    //header: true,
    step: function(result) {
      stack.push(result);
    },
    complete: function(results) {
      stack.reverse();
      var result;
      var tmp = '';
      result = stack.pop();
      if(result == null)
      {
        console.log("Data is null");
      }
      do
      {
        var re = /^\d{10}/;

        tmp += '<tr>';
        console.log(result);
        result.data[0].forEach(function(i) {
          if(i.match(re)) {
            var date = new Date(i*1000);
            tmp += '<td>'+date+'</td>';
          } else {
            tmp += '<td>'+i+'</td>';
          }
        });
          tmp += '</tr>';

      } while((result = stack.shift()) != null)
      var d = document.getElementById('history');
      d.insertAdjacentHTML('beforeend',tmp);

      console.log("done");
    }
  })
} else {
  console.warn('api endpoint is missing');
}