Init firebase

functions/.gitignore

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+node_modules/

functions/index.js

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+const functions = require("firebase-functions");
+
+// // Create and Deploy Your First Cloud Functions
+// // https://firebase.google.com/docs/functions/write-firebase-functions
+//
+// exports.helloWorld = functions.https.onRequest((request, response) => {
+//   functions.logger.info("Hello logs!", {structuredData: true});
+//   response.send("Hello from Firebase!");
+// });

functions/package.json

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+{
+  "name": "functions",
+  "description": "Cloud Functions for Firebase",
+  "scripts": {
+    "serve": "firebase emulators:start --only functions",
+    "shell": "firebase functions:shell",
+    "start": "npm run shell",
+    "deploy": "firebase deploy --only functions",
+    "logs": "firebase functions:log"
+  },
+  "engines": {
+    "node": "16"
+  },
+  "main": "index.js",
+  "dependencies": {
+    "firebase-admin": "^10.0.2",
+    "firebase-functions": "^3.18.0"
+  },
+  "devDependencies": {
+    "firebase-functions-test": "^0.2.0"
+  },
+  "private": true
+}