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Section 7 end - initial
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‎7-Firebase-Web-NPM-JavaScript-SDK-Version-9/end/README.md

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This project requires the `.env` file created in section 2.

‎7-Firebase-Web-NPM-JavaScript-SDK-Version-9/end/firebase.json

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{
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"hosting": {
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"public": "build",
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"ignore": [
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"firebase.json",
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"**/.*",
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"**/node_modules/**"
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],
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"rewrites": [
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{
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"source": "**",
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"destination": "/index.html"
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}
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]
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},
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"emulators": {
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"functions": {
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"port": 5001
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},
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"hosting": {
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"port": 5000
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},
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"ui": {
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"enabled": true
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}
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}
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}

‎7-Firebase-Web-NPM-JavaScript-SDK-Version-9/end/functions/.gitignore

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node_modules/

‎7-Firebase-Web-NPM-JavaScript-SDK-Version-9/end/functions/FirebaseConfig.js

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const functions = require("firebase-functions");
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const admin = require("firebase-admin");
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const FIREBASE_STORAGE_BUCKET = "fir-recipes-15644.appspot.com";
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const apiFirebaseOptions = {
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...functions.config().firebase,
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credential: admin.credential.applicationDefault(),
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};
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admin.initializeApp(apiFirebaseOptions);
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const firestore = admin.firestore();
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const settings = { timestampsInSnapshots: true };
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firestore.settings(settings);
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const storageBucket = admin.storage().bucket(FIREBASE_STORAGE_BUCKET);
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const auth = admin.auth();
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module.exports = { functions, auth, firestore, storageBucket, admin };

‎7-Firebase-Web-NPM-JavaScript-SDK-Version-9/end/functions/index.js

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const FirebaseConfig = require("./FirebaseConfig");
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const recipesApi = require("./recipesApi");
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const functions = FirebaseConfig.functions;
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const firestore = FirebaseConfig.firestore;
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const storageBucket = FirebaseConfig.storageBucket;
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const admin = FirebaseConfig.admin;
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exports.api = functions.https.onRequest(recipesApi);
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exports.onCreateRecipe = functions.firestore
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.document("recipes/{recipeId}")
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.onCreate(async (snapshot) => {
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const countDocRef = firestore.collection("recipeCounts").doc("all");
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const countDoc = await countDocRef.get();
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if (countDoc.exists) {
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countDocRef.update({ count: admin.firestore.FieldValue.increment(1) });
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} else {
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countDocRef.set({ count: 1 });
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}
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const recipe = snapshot.data();
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if (recipe.isPublished) {
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const countPublishedDocRef = firestore
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.collection("recipeCounts")
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.doc("published");
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const countPublishedDoc = await countPublishedDocRef.get();
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if (countPublishedDoc.exists) {
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countPublishedDocRef.update({
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count: admin.firestore.FieldValue.increment(1),
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});
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} else {
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countPublishedDocRef.set({ count: 1 });
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}
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}
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});
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exports.onUpdateRecipe = functions.firestore
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.document("recipes/{recipeId}")
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.onUpdate(async (changes) => {
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const oldRecipe = changes.before.data();
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const newRecipe = changes.after.data();
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let publishCount = 0;
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if (!oldRecipe.isPublished && newRecipe.isPublished) {
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publishCount += 1;
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} else if (oldRecipe.isPublished && !newRecipe.isPublished) {
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publishCount -= 1;
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}
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if (publishCount !== 0) {
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const publishedCountDocRef = firestore
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.collection("recipeCounts")
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.doc("published");
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const publishedCountDoc = await publishedCountDocRef.get();
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if (publishedCountDoc.exists) {
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publishedCountDocRef.update({
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count: admin.firestore.FieldValue.increment(publishCount),
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});
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} else {
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if (publishCount > 0) {
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publishedCountDocRef.set({ count: publishCount });
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} else {
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publishedCountDocRef.set({ count: 0 });
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}
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}
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}
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});
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exports.onDeleteRecipe = functions.firestore
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.document("recipes/{recipeId}")
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.onDelete(async (snapshot) => {
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const recipe = snapshot.data();
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const imageUrl = recipe.imageUrl;
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if (imageUrl) {
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const decodedUrl = decodeURIComponent(imageUrl);
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const startIndex = decodedUrl.indexOf("/o/") + 3;
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const endIndex = decodedUrl.indexOf("?");
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const fullFilePath = decodedUrl.substring(startIndex, endIndex);
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const file = storageBucket.file(fullFilePath);
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console.log(`Attemping to delete: ${fullFilePath}`);
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try {
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await file.delete();
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console.log("Successfully deleted image.");
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} catch (error) {
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console.log(`Failed to delete file: ${error.message}`);
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}
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const countDocRef = firestore.collection("recipeCounts").doc("all");
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const countDoc = await countDocRef.get();
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if (countDoc.exists) {
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countDocRef.update({ count: admin.firestore.FieldValue.increment(-1) });
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} else {
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countDocRef.set({ count: 0 });
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}
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const recipe = snapshot.data();
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if (recipe.isPublished) {
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const countPublishedDocRef = firestore
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.collection("recipeCounts")
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.doc("published");
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const countPublishedDoc = await countPublishedDocRef.get();
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if (countPublishedDoc.exists) {
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countPublishedDocRef.update({
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count: admin.firestore.FieldValue.increment(-1),
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});
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} else {
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countPublishedDocRef.set({ count: 0 });
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}
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}
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}
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});
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// https://crontab.guru/
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const runtimeOptions = {
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timeoutSeconds: 300,
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memory: "256MB",
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};
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exports.dailyCheckRecipePublishDate = functions
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.runWith(runtimeOptions)
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.pubsub.schedule("0 0 * * *")
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.onRun(async () => {
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console.log("dailyCheckRecipePublishDate() called - time to check");
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const snapshot = await firestore
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.collection("recipes")
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.where("isPublished", "==", false)
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.get();
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snapshot.forEach(async (doc) => {
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const data = doc.data();
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const now = Date.now() / 1000;
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const isPublished = data.publishDate._seconds <= now ? true : false;
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if (isPublished) {
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console.log(`Recipe: ${data.name} is now published!`);
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firestore.collection("recipes").doc(doc.id).set(
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{
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isPublished,
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},
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{
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merge: true,
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}
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);
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}
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});
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});
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console.log("SERVER STARTED!");

‎7-Firebase-Web-NPM-JavaScript-SDK-Version-9/end/functions/package.json

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{
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"name": "functions",
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"description": "Cloud Functions for Firebase",
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"scripts": {
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"serve": "firebase emulators:start --only functions",
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"shell": "firebase functions:shell",
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"start": "npm run shell",
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"deploy": "firebase deploy --only functions",
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"logs": "firebase functions:log"
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},
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"engines": {
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"node": "12"
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},
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"main": "index.js",
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"dependencies": {
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"firebase-admin": "^9.2.0",
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"firebase-functions": "^3.11.0"
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},
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"devDependencies": {
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"firebase-functions-test": "^0.2.0"
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},
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"private": true
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}

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