Can I set recordsFiltered with additional ajax request?

jwerre

I can't return the 'recordsFiltered' with my ajax request. Is there a way to set the 'recordsFiltered' within dataFiler with an asynchronous ajax request or promise? Something like:

$table = $('#myTable').DataTable(
  ajax: {
    url: url,
    dataFilter: function(data) {
      var json;
      json = JSON.parse(data);
      json.recordsTotal = total;
      // can I return a async function or promise here?
      json.recordsFiltered = $.getJSON("https://my-api/count.", query, function(total) { return total });
      return JSON.stringify(json);
    },
    data: function(data) {...}
  }
);