firebase error messaging/authentication-error

Question

where does the server key go when using firebase nodejs sdk.

I'm getting the error messaging/authentication-error, message: 'An error occurred when trying to authenticate to the FCM servers. Make sure the credential used to authenticate this SDK has the proper permissions.

however my sdk works in when handling authentications, so it's definitely initialized just not for messaging.

Answer 1

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