[No QA] Send fullstory session id to Sentry

jest/setupMockFullstoryLib.ts

@@ -17,11 +17,12 @@ export default function mockFSLibrary() {
             Page: FSPage,
             getChatFSClass: jest.fn(),
             init: jest.fn(),
-            onReady: jest.fn(),
+            onReady: jest.fn().mockResolvedValue(undefined),
             consent: jest.fn(),
             identify: jest.fn(),
             consentAndIdentify: jest.fn(),
             anonymize: jest.fn(),
+            getSessionId: jest.fn(),
         };
     });
 }

src/CONST/index.ts

@@ -1610,6 +1610,9 @@ const CONST = {
         SHOW_HOVER_PREVIEW_ANIMATION_DURATION: 250,
         ACTIVITY_INDICATOR_TIMEOUT: 10000,
     },
+    TELEMETRY: {
+        CONTEXT_FULLSTORY: 'Fullstory',
+    },
     PRIORITY_MODE: {
         GSD: 'gsd',
         DEFAULT: 'default',

src/Expensify.tsx

@@ -43,6 +43,8 @@ import './libs/registerPaginationConfig';
 import setCrashlyticsUserId from './libs/setCrashlyticsUserId';
 import StartupTimer from './libs/StartupTimer';
 // This lib needs to be imported, but it has nothing to export since all it contains is an Onyx connection
+import './libs/TelemetrySynchronizer';
+// This lib needs to be imported, but it has nothing to export since all it contains is an Onyx connection
 import './libs/UnreadIndicatorUpdater';
 import Visibility from './libs/Visibility';
 import ONYXKEYS from './ONYXKEYS';

src/libs/Fullstory/index.native.ts

@@ -48,6 +48,10 @@ const FS: Fullstory = {
     },
 
     anonymize: () => FullStory.anonymize(),
+
+    getSessionId: () => {
+        return FullStory.getCurrentSession();
+    },
 };
 
 export default FS;

src/libs/Fullstory/index.ts

@@ -87,6 +87,10 @@ const FS: Fullstory = {
     },
 
     anonymize: () => FullStory(CONST.FULLSTORY.OPERATION.SET_IDENTITY, {anonymous: true}),
+
+    getSessionId: () => {
+        return FullStory('getSessionAsync', {format: 'id'});
+    },
 };
 
 export default FS;

src/libs/Fullstory/types.ts

@@ -66,6 +66,11 @@ type Fullstory = {
      * Sets the identity as anonymous using the Fullstory library.
      */
     anonymize: () => void;
+
+    /**
+     * Returns the current Fullstory session ID.
+     */
+    getSessionId: () => Promise<string | undefined>;
 };
 
 /**

src/libs/TelemetrySynchronizer.ts

@@ -0,0 +1,19 @@
+/**
+ * This file contains the logic for sending additional data to Sentry.
+ *
+ * It uses Onyx.connectWithoutView as nothing here is related to the UI. We only send data to external provider and want to keep this outside of the render loop.
+ */
+import * as Sentry from '@sentry/react-native';
+import CONST from '@src/CONST';
+import FS from './Fullstory';
+
+/**
+ * Connect to FullStory to retrieve session id from it. We want to link FullStory with Sentry for easier debugging.
+ */
+FS.onReady().then(async () => {
+    const sessionId = await FS.getSessionId();
+    if (!sessionId) {
+        return;
+    }
+    Sentry.setContext(CONST.TELEMETRY.CONTEXT_FULLSTORY, {sessionId});
+});