messaging/authentication-error

[coyksdev]

• Operating System version: macOS High Sierra
• Firebase SDK version: latest
• Library version: latest
• Firebase Product: push notifications

I followed the firebase docs on how to create an firebase admin for push notifications. this is how i set it up.

const admin = require('firebase-admin');
const serviceAccount = require('../helpers/privateKey.json');
const { fireBasePushNotification } = require('../config');

admin.initializeApp({
credential: admin.credential.cert(serviceAccount),
databaseURL: fireBasePushNotification.database
});

var registrationTokens = [
'imagine this is a token'
];

var topic = 'myTopic'

admin.messaging().subscribeToTopic(registrationTokens, topic)
.then(function(response) {
// See the MessagingTopicManagementResponse reference documentation
// for the contents of response.
console.log('Successfully subscribed to topic:', response);
})
.catch(function(error) {
console.log('Error subscribing to topic:', error);
});

but when i tried to subscribe a topic it respond an error "messaging/authentication-error"
The SDK could not authenticate to the FCM servers. Make sure you authenticate the Admin SDK with a credential which has the proper permissions to send FCM messages. See Add Firebase to your app for documentation on how to authenticate the Admin SDKs.

I generated serviceAccountKey several times it doesnt work.

[google-oss-bot]

Hmmm this issue does not seem to follow the issue template. Make sure you provide all the required information.

[google-oss-bot]

Hey there! I couldn't figure out what this issue is about, so I've labeled it for a human to triage. Hang tight.

[hiranya911]

Chances are some of your tokens do not belong to the same Firebase project. The API is working fine as far as I can tell.

[joseph1125]

I also has this problem, it seems like the admin.initializeApp can't load the info from credential and go to ask the info from defaultCredientals instead.

I also discovered this problem happens since 5.13.0, rolling back to 5.12.1 solves this issue

[hiranya911]

@campanagerald Can you check this against the instructions at #302 (comment)?

[coyksdev]

hi. thanks a lot guys. ill check it later.

[hiranya911]

This hasn't been updated in a while. I'm going to close this. Feel free to reopen/comment if the problem is encountered again.

[robertsLando]

I'm having this issue too. It only happens when using subscribeToTopic and unsubscribeFromTopic functions, send functions seems are working as I don't get any error.

@hiranya911 Any help?

[hiranya911]

I don't have any additional info than what's shared in my earlier comments. If the problem persists I'd recommend reaching out to Firebase Support along with your project ID and token information.

[bethany-dawn]

I'm seeing this as well, but with the application default credentials. All other functions are fine.

[Sivakumar415]

I am still facing this issue any solution for this?

[shubhamgupta-work]

Go to GCP Dashboard in your project
search "API and Service"
In the "Enable APIs and Services" section, click "+Enable APIs and Services", and search "cloud messaging".
Now go to "Cloud Messaging" and "Firebase Cloud Messaging API" one by one and enable it.

[ccarlsson-logi]

Experiencing this issue as well, even after enabling Firebase Cloud Messaging API. Also only on subscribing/unsubscribing to a topic. Any fix for it?