Update environment variables

.gitignore

@@ -26,4 +26,3 @@ dist-ssr
 
 # Environment files
 .env
-firebase.json

backend/question-service/.env.sample

@@ -0,0 +1,6 @@
+MONGO_URI=MONGO_URI
+
+FIREBASE_PROJECT_ID=FIREBASE_PROJECT_ID
+FIREBASE_PRIVATE_KEY=-FIREBASE_PRIVATE_KEY
+FIREBASE_CLIENT_EMAIL=FIREBASE_CLIENT_EMAIL
+FIREBASE_STORAGE_BUCKET=FIREBASE_STORAGE_BUCKET

backend/question-service/config/firebase.ts

@@ -1,9 +1,12 @@
 import admin from "firebase-admin";
-import serviceAccount from "../firebase.json";
 
 admin.initializeApp({
-  credential: admin.credential.cert(serviceAccount as admin.ServiceAccount),
-  storageBucket: "gs://peerprep-c3bd1.appspot.com",
+  credential: admin.credential.cert({
+    projectId: process.env.FIREBASE_PROJECT_ID,
+    privateKey: process.env.FIREBASE_PRIVATE_KEY?.replace(/\\n/g, "\n"),
+    clientEmail: process.env.FIREBASE_CLIENT_EMAIL,
+  } as admin.ServiceAccount),
+  storageBucket: process.env.FIREBASE_STORAGE_BUCKET,
 });
 
 const bucket = admin.storage().bucket();