[Lens] Add ES-request time telemetry to Lens embeddable

x-pack/plugins/lens/public/embeddable/embeddable.tsx

@@ -12,6 +12,7 @@ import { css } from '@emotion/react';
 import { i18n } from '@kbn/i18n';
 import { render, unmountComponentAtNode } from 'react-dom';
 import { ENABLE_ESQL } from '@kbn/esql-utils';
+import { reportPerformanceMetricEvent } from '@kbn/ebt-tools';
 import {
   DataViewBase,
   EsQueryConfig,
@@ -143,6 +144,7 @@ import { EmbeddableFeatureBadge } from './embeddable_info_badges';
 import { getDatasourceLayers } from '../state_management/utils';
 import type { EditLensConfigurationProps } from '../app_plugin/shared/edit_on_the_fly/get_edit_lens_configuration';
 import { TextBasedPersistedState } from '../datasources/text_based/types';
+import { RequestStatus } from '@kbn/inspector-plugin/public';
 
 export type LensSavedObjectAttributes = Omit<Document, 'savedObjectId' | 'type'>;
 
@@ -1076,6 +1078,32 @@ export class Embeddable
       ...this.getOutput(),
       rendered: true,
     });
+
+    const inspectorAdapters = this.getInspectorAdapters();
+    const requests = inspectorAdapters.requests?.getRequests() || [];
+
+    let totalTookTime = 0;
+    let allValid = true;
+    let totalTime = 0;
+    for (let i = 0; i < requests.length; i++) {
+      const request = requests[i];
+      if (request.status !== RequestStatus.OK) {
+        allValid = false;
+        break;
+      }
+      totalTookTime += request.response?.json?.rawResponse?.took ?? 0;
+      totalTime += request.time || 0;
+    }
+
+    if (allValid) {
+      const esRequestMetrics = {
+        eventName: 'lens_chart_es_request_totals',
+        duration: totalTime,
+        key1: 'es_took_total',
+        value1: totalTookTime,
+      };
+      reportPerformanceMetricEvent(this.deps.coreStart.analytics, esRequestMetrics);
+    }
   };
 
   getExecutionContext() {