[Reporting] fix too_long_frame_exception by passing scroll_id in the …

…request body (elastic#102972)

* pass scroll_id in the request body not a param

* update test to match

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

x-pack/plugins/reporting/server/export_types/csv_searchsource/generate_csv/generate_csv.test.ts

@@ -324,6 +324,23 @@ it('uses the scrollId to page all the data', async () => {
  const csvResult = await generateCsv.generateData();
  expect(csvResult.warnings).toEqual([]);
  expect(csvResult.content).toMatchSnapshot();
+
+ expect(mockDataClient.search).toHaveBeenCalledTimes(1);
+ expect(mockDataClient.search).toBeCalledWith(
+ { params: { scroll: '30s', size: 500 } },
+ { strategy: 'es' }
+ );
+
+ // `scroll` and `clearScroll` must be called with scroll ID in the post body!
+ expect(mockEsClient.asCurrentUser.scroll).toHaveBeenCalledTimes(9);
+ expect(mockEsClient.asCurrentUser.scroll).toHaveBeenCalledWith({
+ body: { scroll: '30s', scroll_id: 'awesome-scroll-hero' },
+ });
+
+ expect(mockEsClient.asCurrentUser.clearScroll).toHaveBeenCalledTimes(1);
+ expect(mockEsClient.asCurrentUser.clearScroll).toHaveBeenCalledWith({
+ body: { scroll_id: ['awesome-scroll-hero'] },
+ });
 });
 
 describe('fields from job.searchSource.getFields() (7.12 generated)', () => {

x-pack/plugins/reporting/server/export_types/csv_searchsource/generate_csv/generate_csv.ts

@@ -102,8 +102,10 @@ export class CsvGenerator {
  this.logger.debug(`executing scroll request`);
  const results = (
  await this.clients.es.asCurrentUser.scroll({
- scroll: scrollSettings.duration,
- scroll_id: scrollId,
+ body: {
+ scroll: scrollSettings.duration,
+ scroll_id: scrollId,
+ },
  })
  ).body as SearchResponse<unknown>;
  return results;
@@ -387,7 +389,7 @@ export class CsvGenerator {
  if (scrollId) {
  this.logger.debug(`executing clearScroll request`);
  try {
- await this.clients.es.asCurrentUser.clearScroll({ scroll_id: [scrollId] });
+ await this.clients.es.asCurrentUser.clearScroll({ body: { scroll_id: [scrollId] } });
  } catch (err) {
  this.logger.error(err);
  }