Use default application credential

packages/api/src/utils/sendNotification.ts

@@ -1,4 +1,4 @@
-import { initializeApp } from 'firebase-admin/app'
+import { applicationDefault, initializeApp } from 'firebase-admin/app'
 import {
   BatchResponse,
   getMessaging,
@@ -11,7 +11,9 @@ import { analytics } from './analytics'
 export type PushNotificationType = 'newsletter' | 'reminder' | 'rule'
 
 // getting credentials from App Engine
-initializeApp()
+initializeApp({
+  credential: applicationDefault(),
+})
 
 export const sendPushNotification = async (
   userId: string,

packages/rule-handler/src/index.ts

@@ -107,6 +107,11 @@ export const ruleHandler = Sentry.GCPFunction.wrapHttpFunction(
 
       // get rules by calling api
       const rules = await getEnabledRules(userId, apiEndpoint, jwtSecret)
+      if (!rules || rules.length === 0) {
+        console.log('No rules found')
+        res.status(200).send('No Rules')
+        return
+      }
 
       await triggerActions(userId, rules, data, apiEndpoint, jwtSecret)