Test Firebase Cloud Functions Access Firestore Emulator (Node.js)

firebase init     ######## #### ########  ######## ########     ###     ######  ########     ##        ##  ##     ## ##       ##     ##  ##   ##  ##       ##     ######    ##  ########  ######   ########  #########  ######  ######     ##        ##  ##    ##  ##       ##     ## ##     ##       ## ##     ##       #### ##     ## ######## ########  ##     ##  ######  ########You're about to initialize a Firebase project in this directory:  /code/firebase/journeyBefore we get started, keep in mind:  * You are currently outside your home directory  * You are initializing in an existing Firebase project directory? Which Firebase CLI features do you want to set up for this folder? Press Space to select features, then Enter to confirm your choices. Emulators: Set up local emulators for Firebase features=== Project SetupFirst, let's associate this project directory with a Firebase project.You can create multiple project aliases by running firebase use --add,but for now we'll just set up a default project.i  .firebaserc already has a default project, using journeyx.=== Emulators Setup? Which Firebase emulators do you want to set up? Press Space to select emulators, then Enter to confirm your choices. Functions, Firestore, Hostingi  Port for functions already configured: 5001? Which port do you want to use for the firestore emulator? 8080i  Port for hosting already configured: 5000? Would you like to download the emulators now? Yesi  firestore: downloading cloud-firestore-emulator-v1.11.2.jar...Progress: ======================================================> (100% of 90MB)i  Writing configuration info to firebase.json...i  Writing project information to .firebaserc...✔  Firebase initialization complete!

firebase emulators:start --only firestore,functions

npm install firebase-admin --savenpm istall @firebase/testing --save-dev

const isDev = process.env.FUNCTIONS_EMULATORconst functions = require('firebase-functions');let admin       // serverlet firebase    // testinglet firestorelet dbconst projectId = 'PROJECT_NAME'if (isDev) {  firebase = require("@firebase/testing")  db = firebase.initializeTestApp({ projectId: projectId }).firestore()  firestore = firebase.firestore  // admin = firebase}else {  admin = require('firebase-admin')  admin.initializeApp(functions.config().firebase)  db = admin.firestore()  firestore = admin.firestore  // firebase = admin}// exports.requestInvite = functions.https.onRequest(async (req, res) => {exports.requestInvite = functions.https.onCall(async (data, context) => {  const email = data.email  // use email as docId  const docId = Buffer.from(email).toString('base64')  const docRef = db.collection('request_invite').doc(docId)  if (isDev) {    // optional - delete database    await firebase.clearFirestoreData({ projectId })  }  const doc = await docRef.get()  if (doc.exists) {    console.log('doc exist', doc.data())  }  await docRef.set({    created: firestore.Timestamp.now(),    email: email  })  return {    text: `Hello ${email}!`,    docId: docRef.id  }})

const functions = require('firebase-functions');const admin = require('firebase-admin')admin.initializeApp(functions.config().firebase)const db = admin.firestore()const firestore = admin.firestoreexports.requestInvite = functions.https.onCall(async (data, context) => {  const email = data.email  // use email as docId  const docId = Buffer.from(email).toString('base64')  const docRef = db.collection('request_invite').doc(docId)  const doc = await docRef.get()  if (doc.exists) {    console.log('doc exist', doc.data())  }  await docRef.set({    created: created: firestore.Timestamp.now(),    email: email  })  return {    text: `Hello ${email}!`,    docId: docRef.id  }})