test(messaging): cloud function sendFCM feature for messaging testing

.github/workflows/scripts/functions/package.json

@@ -13,12 +13,13 @@
   },
   "main": "lib/index.js",
   "dependencies": {
-    "firebase-admin": "^12.5.0",
-    "firebase-functions": "^6.0.1"
+    "firebase-admin": "^13.0.0",
+    "firebase-functions": "^6.1.0"
   },
   "devDependencies": {
     "firebase-functions-test": "^3.3.0",
-    "typescript": "^5.6.2"
+    "firebase-tools": "^13.25.0",
+    "typescript": "^5.6.3"
   },
   "private": true
 }

.github/workflows/scripts/functions/src/index.ts

@@ -23,3 +23,4 @@ export { testFunctionCustomRegion } from './testFunctionCustomRegion';
 export { testFunctionDefaultRegionV2 } from './testFunctionDefaultRegion';
 export { testFunctionRemoteConfigUpdateV2 } from './testFunctionRemoteConfigUpdate';
 export { fetchAppCheckTokenV2 } from './fetchAppCheckToken';
+export { sendFCM } from './sendFCM';

.github/workflows/scripts/functions/src/sendFCM.ts

@@ -0,0 +1,28 @@
+/*
+ *
+ *  Testing tools for invertase/react-native-firebase use only.
+ *
+ *  Copyright (C) 2018-present Invertase Limited <[email protected]>
+ *
+ *  See License file for more information.
+ */
+
+import * as functions from 'firebase-functions/v2';
+import { CallableRequest } from 'firebase-functions/v2/https';
+
+import { getMessaging, TokenMessage } from 'firebase-admin/messaging';
+
+// Note: this will only work in a live environment, not locally via the Firebase emulator.
+export const sendFCM = functions.https.onCall(
+  async (req: CallableRequest<{ message: TokenMessage; delay?: number }>) => {
+    const { message, delay } = req.data;
+    return await new Promise(() => {
+      functions.logger.info('Sleeping this many milliseconds: ' + (delay ?? 0));
+      setTimeout(async () => {
+        functions.logger.info('done sleeping');
+        const result = await getMessaging().send(message);
+        return { messageId: result };
+      }, delay ?? 0);
+    });
+  },
+);