Cloud Functions by Firebase vs Cloud Functions
November 17, 2020Cloud Functions by Firebase
https://firebase.google.com/docs/functions
- Support Node.js only
- Good support for local machine testing using Firebase emulators (Cloud Functions, Cloud Firestore, Cloud Authentication, etc)
Simple HTTP function
const functions = require('firebase-functions');
exports.hello = functions.https.onRequest((req, res) => {
res.send(`Hello ${req.query.name}`);
});
Deploy
firebase deploy --only functions:hello
Functions triggered by Google Authentication (when new user is created)
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();
const db = admin.firestore();
exports.initUser = functions.auth.user().onCreate(async (user) => {
let docRef = db.collection('user').doc(user.uid);
await docRef.set({
created: admin.firestore.Timestamp.now(), // user.metadata.createdAt
name: user.displayName,
email: user.email
});
});
firebase deploy --only functions:initUser
Cloud Functions
https://cloud.google.com/functions
- Support Node.js, Python, Go, Java, .NET
Simple HTTP function
exports.hello = (req, res) => {
res.send(`Hello ${req.query.name}`);
};
Deploy
gcloud functions deploy hello --runtime nodejs10 --trigger-http --allow-unauthenticated
Functions triggered by Google Authentication (when new user is created)
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp();
const db = admin.firestore();
exports.initUser = async (event) => {
let docRef = db.collection('user').doc(event.uid);
await docRef.set({
created: admin.firestore.Timestamp.now(), // event.metadata.createdAt
name: event.displayName,
email: event.email
});
};
Deploy
gcloud functions deploy initUser --trigger-event providers/firebase.auth/eventTypes/user.create --runtime nodejs10
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