Develop Reference

firebase is not being recognized in Unity webGL Build

I have set up a test project in order to test Firebase with unity webGL builds.
I have created a *.jslib plugin to keep my js functions in there :
mergeInto(LibraryManager.library, {
GetJSON: function (path, objectName, callback, fallback) {
var parsedPath = Pointer_stringify(path);
var parsedObjectName= Pointer_stringify(objectName);
var parsedCallback = Pointer_stringify(callback);
var parsedFallback = Pointer_stringify(fallback);
try{
firebase.database().ref(parsedPath).once('value').then(function(snapshot) {
window.unityInstance.SendMessage(parsedObjectName, parsedCallback , JSON.stringify(snapshot.val()));
});
} catch(error){
window.unityInstance.SendMessage(parsedObjectName, parsedFallback, "There was an error: " + error.message);
}
}
});
After building and running, I add my Firebase config snippet into the index.html file(I have hidden the actual keys on this snippet):
<script type="module">
// Import the functions you need from the SDKs you need
import { initializeApp } from "https://www.gstatic.com/firebasejs/9.8.1/firebase-app.js";
import { getAnalytics } from "https://www.gstatic.com/firebasejs/9.8.1/firebase-analytics.js";
// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries
// Your web app's Firebase configuration
// For Firebase JS SDK v7.20.0 and later, measurementId is optional
const firebaseConfig = {
apiKey: "key",
authDomain: "domain",
projectId: "id",
storageBucket: "bucket",
messagingSenderId: "senderID",
appId: "appId",
measurementId: "measurementId"
};
// Initialize Firebase
const app = initializeApp(firebaseConfig);
const analytics = getAnalytics(app);
</script>
In unity, I am testing this by calling the GetJSON function, and I have a callback, and a fallback method:
void Start()
{
text.text = "Start worked";
GetJSON(path: "example", gameObject.name, callback: "OnRequestSuccess", fallback: "OnRequestFailed");
}
public void OnRequestSuccess(string data)
{
text.color = Color.green;
text.text = data;
}
public void OnRequestFailed(string error)
{
text.color = Color.red;
text.text = error;
}
After I have built and run my webGL project, and updated the index.html file with the proper configurations, the text turns red (Which means the OnRequestFailed() was called) and it says: "There was an error: firebase is not defined". Which means, it does not recognize the firebase when I use it on the *.jslib plugin. Where should the firebase be defined exactly? Because I am defining it in my index.html, or at least I think so?

Transaction failure while testing firebase firestore

I am trying to write some tests for the cloud functions I have written, but I am facing a problem where a transaction never succeeds and ends up in an error:
9 FAILED_PRECONDITION: the stored version (1648901730789554) does not match the required base version (0)
Problematic code is the following:
await firebase.db().runTransaction((t) => {
return t.get(docRef).then((doc) => {
if (!doc.exists) {
console.log("no exist");
}
});
});
It is run several times (checked with debugger), and then the error messages is thrown...
And the firebase test env init:
export async function initialize() {
fb.initializeTestApp({
projectId: "my-test-project",
auth: { uid: "alice", email: "alice#example.com" }
});
const testEnv = await initializeTestEnvironment({
projectId: "demo-project-1234",
firestore: {
rules: fs.readFileSync("../firestore.rules", "utf8"), // Load rules from file
// host and port can be omitted if they can be discovered from the hub.
},
});
const alice = testEnv.authenticatedContext(uid);
const db = (alice.firestore() as unknown) as firestore.Firestore;
firebase.db = () => db;
return testEnv;
}
Am I doing something wrong?
Note: I currently have only one test that runs, nothing else. And firebase emulators are running, without any other app accessing it.

After some more research, I have figured out that I was mixing #firebase/testing and firebase-admin, and the matter should not be used for unit testing backend functions according to this post.
On a side note, it seems there already is a function to create a doc iff it does not exist:
docRef.create(...).then(() => log("ok")).catch(() => log("Not ok"))

How to implement Firebase(FCM) Push Notifications on nuxtjs / vuejs

Having devoted many hours to search the internet for a simple and straightforward way of how to implement Firebase FCM Push Notification on my nuxt project bore no fruit.

Here is how to implement FCM Push Notifications on your NuxtJs/Vuejs project
Step 1
Create your nuxt app like npx create-nuxt-app <your-app-name>
Step 2
Install firebase npm install firebase and #nuxt/firebase npm install #nuxt/firebase
Step 3
Creating your firebase project
Go to firebase console and create a project
Give it a name
Enable Google analytics if you like to then click on create
-Get some coffee as the projects creates ☕
On this page you want to copy the config, which we will use later
Finally, we land on the home page of our project on firebase, looks like below image
Let's go back to our project
Step 4
On your nuxt.config.js add
// Modules: https://go.nuxtjs.dev/config-modules
modules: [
'#nuxtjs/firebase',
],
// firebase FCM starts here
firebase: {
lazy: false,
config: {
apiKey: <apiKey>,
authDomain: <authDomain>,
projected: <projectId>,
storageBucket: <storageBucket>,
messagingSenderId: <messagingSenderId>,
appId: <appId>,
measurementId: <measurementId>,
databaseURL: <databaseURL>,
},
onFirebaseHosting: false,
services: {
messaging: true,
}
},
messaging: {
createServiceWorker: true,
actions: [
{
action: 'goHome',
url: 'https://localhost:3000'
}
],
fcmPublicVapidKey: <vapidKey>
},
To get your vapidKey navigate to Project Settings on your firebase console and select Cloud Messaging, scroll down and press on Generate Key Pair to have your vapidKey.See image below
copy and paste it on your nuxt.config.js
Step 5
On the static folder at your project root create a file named firebase-messaging-sw.js and paste the input the configs as below
importScripts('https://www.gstatic.com/firebasejs/8.2.7/firebase-app.js');
importScripts('https://www.gstatic.com/firebasejs/8.2.7/firebase-messaging.js');
// Initialize the Firebase app in the service worker by passing the generated config
var firebaseConfig = {
apiKey: <apiKey>,
authDomain: <authDomain>,
projected: <projectId>,
storageBucket: <storageBucket>,
messagingSenderId: <messagingSenderId>,
appId: <appId>,
measurementId: <measurementId>,
databaseURL: <databaseURL>,
};
firebase.initializeApp(firebaseConfig);
// Retrieve firebase messaging
const messaging = firebase.messaging();
messaging.onBackgroundMessage(function (payload) {
console.log('Received background message ', payload);
const notificationTitle = payload.notification.title;
const notificationOptions = {
body: payload.notification.body
};
self.registration.showNotification(notificationTitle,
notificationOptions);
});
Step 6
On your index.vue configure it as follows
<template>
<div>
<h1>Get Notified</h1>
</div>
</template>
<script>
export default {
data() {
return {
listenersStarted: false,
idToken: "",
};
},
mounted() {
this.startListeners();
},
methods: {
// FCM NOTIFICATION FUNCTIONS
async startListeners() {
await this.startOnMessageListener();
await this.startTokenRefreshListener();
await this.requestPermission();
await this.getIdToken();
this.listenersStarted = true;
},
startOnMessageListener() {
try {
this.$fire.messaging.onMessage((payload) => {
console.info("Message received : ", payload);
console.log(payload.notification.body);
});
} catch (e) {
console.error("Error : ", e);
}
},
startTokenRefreshListener() {
try {
this.$fire.messaging.onTokenRefresh(async () => {
try {
await this.$fire.messaging.getToken();
} catch (e) {
console.error("Error : ", e);
}
});
} catch (e) {
console.error("Error : ", e);
}
},
async requestPermission() {
try {
const permission = await Notification.requestPermission();
console.log("GIVEN notify perms");
console.log(permission);
} catch (e) {
console.error("Error : ", e);
}
},
async getIdToken() {
try {
this.idToken = await this.$fire.messaging.getToken();
console.log("TOKEN ID FOR this browser");
console.log(this.idToken);
} catch (e) {
console.error("Error : ", e);
}
},
},
};
</script>
Step 7
Run npm run dev , open your console to see if the permissions to display notifications are granted. Accept if promoted to allow notifications.
Step 8
Navigate to Cloud Messaging on firebase Engage menu and click on Send your first message. Type the content you would like your notification to have and select your app as the target user, there we have it you should see a notification on your browser like so

Web firebase.messaging().onMessage not fired, but background notification perfectly fired

I want to reload or trigger some event in foregrounf if push message is sent with firebase.messaging().onMessage, but it not fired. I'm using firebase.mesaging.sw.js with background notification and it works correctly what is wrong with my code?
firebase.js
const config = {
apiKey: "x",
projectId: "x",
storageBucket: "x",
messagingSenderId: "x"
};
firebase.initializeApp(config);
const msg = firebase.messaging()
msg.requestPermission()
.then(() => {
return msg.getToken()
})
.then((token) => {
})
.catch((err) => {
})
msg.onMessage(function(payload) {
alert("Foreground message fired!")
console.log(payload)
});
firebase.messaging.sw.js
importScripts("https://www.gstatic.com/firebasejs/7.0.0/firebase-app.js");
importScripts("https://www.gstatic.com/firebasejs/7.0.0/firebase-messaging.js");
const config = {
apiKey: "x",
projectId: "x",
storageBucket: 'x',
messagingSenderId: "x"
};
firebase.initializeApp(config);
const msg = firebase.messaging()
msg.setBackgroundMessageHandler(function(payload) {
let options = {
body: payload.data.body,
icon: payload.data.icon
}
return self.registration.showNotification(payload.data.title, options);
});
I don't know what is wrong with my code

Simple solution to this is update your Firebse to latest version.
Eg.
importScripts('https://www.gstatic.com/firebasejs/7.8.0/firebase-app.js');
importScripts('https://www.gstatic.com/firebasejs/7.8.0/firebase-messaging.js');
Note: Once you have updated your firebase libraries versions then messagingSenderId will not work in your firebase-messaging-sw.js file. You have to provide all other params eg. apiKey, projectId, appId along with messagingSenderId.
If still not work. Clean your browser cache and re-register service worker.
For more details you can refer to this solution

Still had the same issue in 2020. In my case it was like this:
you need to have same versions in importScripts for background messages and in your app for foreground messages
call it after obtaining token for background service
firebaseApp.messaging().getToken().then((currentToken) => {
if (currentToken) {
console.log(currentToken)
} else {
// Show permission request.
console.log(
'No Instance ID token available. Request permission to generate one.')
}
/** When app is active */
firebase.messaging().onMessage((payload) => {
console.log(payload)
}, e => {
console.log(e)
})
})

For anyone else with this problem, I finally solved it by:
Upgrading the Firebase SDK version in both header-included JS files and the SW JS file to latest (currently, that would be 7.8.1).
Adding the entire firebaseConfig array to the SW firebase.initializeApp(), as the previous answer suggests.
Cleaning the Chrome cache from the Application > Clear Storage section in the Developer Tools.
Deleting the previous registration token from my database.
Blocking and unblocking notifications from the browser to force a new token generation.
Basically, a total fresh start with updated Firebase SDK seems to fix issues like this.

You are missing lots of things and onMessage will only work if firebase is initialized before calling it. Please follow this. I have done it like this and it is working.
initialize firebase and get the token
export class BrowserFcmProvider {
export const FIREBASE_CONFIG = {
apiKey: "****",
authDomain: "****",
databaseURL: "****",
projectId: "****",
storageBucket: "****",
messagingSenderId: "****",
appId: "****"
}
firebase.initializeApp(FIREBASE_CONFIG);
async webGetToken() {
try {
const messaging = firebase.messaging();
await messaging.requestPermission();
const token = await messaging.getToken();
let uuidTemp = new DeviceUUID().get();
return this.saveTokenToFireStoreFromWeb(token, uuidTemp)
} catch (e) {
console.log(e);
}
}
saveTokenToFireStoreFromWeb(token, uuid) {
try {
const docData = {
token: token,
device_type: 'web',
uuid: uuid
}
const devicesRef = this.db.collection('devices')
return devicesRef.doc(uuid).set(docData);
} catch (e) {
console.log(e, 'saveTokenError');
}
}
showMessage() {
try {
const messaging = firebase.messaging();
messaging.onMessage((payload) => {
console.log(payload);
})
} catch (e) {
console.log(e)
}
}
}
And calling the method while app loads like this
async configureFirebaseForBrowser(res) {
await this.bfcm.webGetToken();
this.bfcm.showMessage();
}
Firebase function and payload type
const payloadWeb = {
title: title,
body: body,
data: {
title: title,
body: body
},
tokens: uniqueDevicesTokenArrayWeb,
}
const responseWeb = await admin.messaging().sendMulticast(payloadWeb);
console.log(responseWeb.successCount + ' notifications has been sent to Web successfully');
I have used async and await as we need to manage firebase/firestore operations asynchronously.
fcm does not work in Incognito mode and safari browser

Same issue i was faced. In my case firebase version in "package.json" and "firebase-messaging-sw.js" importScripts version was different. After set same version in "firebase-messaging-sw.js" importScripts which was in
"package.json", my issue is resolved.
Before change
**"package.json"**
"firebase": "^8.2.1",
**"firebase-messaging-sw.js"**
importScripts('https://www.gstatic.com/firebasejs/7.8.0/firebase-app.js');
importScripts('https://www.gstatic.com/firebasejs/7.8.0/firebase-messaging.js');
After change
**"package.json"**
"firebase": "^8.2.1",
**"firebase-messaging-sw.js"**
importScripts('https://www.gstatic.com/firebasejs/8.2.1/firebase-app.js');
importScripts('https://www.gstatic.com/firebasejs/8.2.1/firebase-messaging.js');

Angular Project: How to get instance of secondary firebase app?

In my angular app I have the same problem as the person who asked the following question:
Firebase kicks out current user
I want to be able to add a new user account without the current user (= the admin who is creating the new user account) being kicked out.
Apparently, this is possible by creating a second auth reference and use that to create users (see approved answer to the question linked to above):
var config = {apiKey: "apiKey",
authDomain: "projectId.firebaseapp.com",
databaseURL: "https://databaseName.firebaseio.com"};
var secondaryApp = firebase.initializeApp(config, "Secondary");
secondaryApp.auth().createUserWithEmailAndPassword(em, pwd).then(function(firebaseUser) {
console.log("User " + firebaseUser.uid + " created successfully!");
//I don't know if the next statement is necessary
secondaryApp.auth().signOut();
});
Following this answer, I tried the following:
registerUser(authData: AuthData, participantId: string, role: string): Promise<any> {
let config = {
apiKey: "API-Key",
authDomain: "myApp-a7211.firebaseapp.com",
databaseURL: "https://myApp-a7211.firebaseio.com",
};
let secondaryApp = firebase.initializeApp(config, "Secondary");
return secondaryApp.auth().createUserWithEmailAndPassword(authData.email, authData.password)
.then(function(firebaseUser) {
console.log("User " + firebaseUser + " created successfully!");
secondaryApp.auth().signOut();
});
}
The problem is that this works only once. After that, initialisation of the secondary firebaseApp is not possible because it has been initialised already.
So I thought, rather than initialising the secondary app inside the registerUser()-method, maybe I should do something like that (in file app.module.ts):
But then how can I refer to the secondary firebaseApp in the code?
UPDATE:
Following the suggested answer by Frank van Puffelen, I did the following:
1.) In file app.module.ts:
2.) In file auth.service.ts:
export class AuthService implements OnDestroy {
private secondaryApp = firebase.app("Secondary");
//other code
registerUser(authData: AuthData): Promise<any> {
return this.secondaryApp.auth().createUserWithEmailAndPassword(authData.email, authData.password)
.then(function(firebaseUser) {
console.log("User " + firebaseUser + " created successfully!");
this.secondaryApp.auth().signOut();
});
}
//other methods
}
However, when trying to add a new user, I get the following error message:
UPDATE 2:
Frank van Puffelen pointed out a silly mistake I had made: the name I registered the app with, and the name used to look the app back up, did not match.
After correcting this, the error message disappeared.
However, the current user was still kicked out after creating a new account.
... What finally worked was the following:
(file auth.service.ts:)
export class AuthService implements OnDestroy {
//do not initialise the secondary app in app.module.ts but here:
private config = {
apiKey: "API-KEY",
authDomain: "myApp-a7211.firebaseapp.com",
databaseURL: "https://myApp-a7211.firebaseio.com",
};
private secondaryApp = firebase.initializeApp(this.config, "SecondaryApp");
//other code
registerUser(authData: AuthData): Promise<any> {
return this.secondaryApp.auth().createUserWithEmailAndPassword(authData.email, authData.password)
.then(function(firebaseUser) {
console.log("User " + firebaseUser + " created successfully!");
this.secondaryApp.auth().signOut();
});
}
//other methods
}

You can make secondaryApp global and then refer to it from elsewhere in your code. So something like:
let secondaryApp;
registerUser(authData: AuthData, participantId: string, role: string): Promise<any> {
let config = {
apiKey: "AIzaSyAY1TWvQtK0tDQWmRzoouRNZzAnf15RG_A",
authDomain: "myApp-a7211.firebaseapp.com",
databaseURL: "https://myApp-a7211.firebaseio.com",
};
secondaryApp = firebase.initializeApp(config, "Secondary");
In fact, I'd pull the entire configuration of the secondary app out into a global scope, since it is only supposed to run once. So:
let config = {
apiKey: "AIzaSyAY1TWvQtK0tDQWmRzoouRNZzAnf15RG_A",
authDomain: "myApp-a7211.firebaseapp.com",
databaseURL: "https://myApp-a7211.firebaseio.com",
};
let secondaryApp = firebase.initializeApp(config, "Secondary");
registerUser(authData: AuthData, participantId: string, role: string): Promise<any> {
return secondaryApp.auth().createUserWithEmailAndPassword(authData.email, authData.password)
.then(function(firebaseUser) {
...
});
}
You can always look up the FirebaseApp instance by its name. So in your casse:
let secondaryApp = firebase.app("Secondary");