Extract DEFAULT_SOURCE_ID constant to a shared location

x-pack/plugins/infra/common/constants.ts

@@ -0,0 +1,7 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+export const DEFAULT_SOURCE_ID = 'default';

x-pack/plugins/infra/public/utils/logs_overview_fetchers.ts

@@ -4,6 +4,7 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { DEFAULT_SOURCE_ID } from '../../common/constants';
 import { InfraClientCoreSetup, InfraClientStartDeps } from '../types';
 import {
   FetchData,
@@ -34,14 +35,12 @@ interface LogParams {
 
 type StatsAndSeries = Pick<LogsFetchDataResponse, 'stats' | 'series'>;
 
-const SOURCE_ID = 'default';
-
 export function getLogsHasDataFetcher(
   getStartServices: InfraClientCoreSetup['getStartServices']
 ): HasData {
   return async () => {
     const [core] = await getStartServices();
-    const sourceStatus = await callFetchLogSourceStatusAPI(SOURCE_ID, core.http.fetch);
+    const sourceStatus = await callFetchLogSourceStatusAPI(DEFAULT_SOURCE_ID, core.http.fetch);
     return sourceStatus.data.logIndexNames.length > 0;
   };
 }
@@ -54,7 +53,7 @@ export function getLogsOverviewDataFetcher(
     const { data } = startPlugins;
 
     const sourceConfiguration = await callFetchLogSourceConfigurationAPI(
-      SOURCE_ID,
+      DEFAULT_SOURCE_ID,
       core.http.fetch
     );