code: function exportCSV(params, cb) {
    var resourcePath = config.addURIParams("/appforms/submissions/export", params);
    var method = "POST";
    var data = params.queryParams;
  
    params.resourcePath = resourcePath;
    params.method = method;
    params.data = data;
  
    params.fileRequest = true;
  
    mbaasRequest.app(params, cb);
  }
docs: Export Submissions As A Zip File Containing CSVs.
  @param params
  @param cb