firebase-functions: FIREBASE WARNING: Provided authentication credentials for the app named "[DEFAULT]" are invalid. This usually indicates your app was not initialized correctly. Make sure the "credential" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.

For everyone else who sees this issue in the future. If you are seeing this in DEPLOYED functions, try:

1. deleting all your functions
2. disable cloud functions API at console.cloud.google.com/apis/api/cloudfunctions.googleapis.com
3. re-enable API
4. re-deploy function

Sorry for this hacky workaround. We are pushing out a server-side fix in the next few weeks, so this won’t occur any longer, but unfortunate right now it’s affecting a small percentage of projects.

If the above workaround doesn’t resolve the issue, please file a support ticket

UPDATE : The below did not solve this. It did remove the error although db write/read was not working/ignored/silently failed

UPDATE2 : Simply removing the credential field solved this for me. I would however like to use a service account but removing it solved this for me.

For what its worth I noticed I could provide a custom name when I created the database. Using the project-id and not the database-name solved this for me, even though documentation uses the database-name

var admin = require('firebase-admin');
var serviceAccount = require('path/to/serviceAccountKey.json');

admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: 'https://<PROJECT-ID >.firebaseio.com'
});

@laurenzlong - I just tried your suggestion but I’m still getting the same warning message throughout my logs. I’ve been working on this for weeks and have a support ticket open but still no resolution.

I’m getting the same error and need help. I’ve filed a support ticket.

I am also getting the same error using firebase-admin and serviceAccount. How can i fix this?

@laurenzlong Hi, I’m trying to update Node 8 -> Node 10 and always having the error

FIREBASE WARNING: Provided authentication credentials for the app named "[DEFAULT]" are invalid. This usually indicates your app was not initialized correctly. Make sure the "credential" property provided to initializeApp() is authorized to access the specified "databaseURL" and is from the correct project.  

I have already tried the steps which you suggested, also check my service accounts and variables, but without any results.

Even if I deploy only 1 function on NodeJS 10, then it’s started giving me the error. Also strange thing that it’s working fine on our dev project and it’s happening only on the production project.

Could you help or suggest any ideas where we can look for?

To whoever see this message and he/she is just using firebase for their database with the use of a key. The depedency between your service account and the generated key is messed up for some reason, (some change or some deletion etc), and a probable way to solve this quickly is to go to the service accounts, create a new one if needed, and generate a new key. Understandably that doesn’t cover all the cases, but it is a very usual case I believe.

1. Go to your firebase project
2. Click the gear icon
3. Project Settings
4. Services Accounts
5. Generate a new service account, (if necessary)
6. Generate a new private key

Faced the same issue, solved it as in update2 from @Portur by simply removing credentials from initializing and putting just: admin.initializeApp()

I have the same problem:

FIREBASE WARNING: {“code”:“app/invalid-credential”,“message”:“Credential implementation provided to initializeApp() via the "credential" property failed to fetch a valid Google OAuth2 access token with the following error: "getaddrinfo ENOTFOUND metadata.google.internal metadata.google.internal:80".”}

Note: my cloud functions doesn’t make any external calls

Since I implemented unit tests in online mode for Cloud Functions v1.0, using the test initialization as documented in my test.online.js:

const test = require('firebase-functions-test')( {
	projectId:     '<project-id>',
	databaseURL:   'https://<project-id>.firebaseio.com'
}, './service_accounts/service-account-key.json');

so my firebase-admin initialization in index.js looks like the “Migrate to v1.0” documentation:

const admin = require('firebase-admin');
admin.initializeApp();

I temporarily solved initializing admin inside my test.online.js with credential and databaseUrl like the reference documentation:

const serviceAccount = require('./../service-account.json');
admin.initializeApp({
  credential: admin.credential.cert(serviceAccount),
  databaseURL: "https://<project-id>.firebaseio.com"
});

and modifying my functions index.js like this:

const admin = require('firebase-admin');
try {
	admin.app();
} catch(e) {
	admin.initializeApp();
}

So when I run online tests, admin is first initialized correctly by test.online.js and index.js doesn’t create a new firebase app. My offline and online tests are working now, and I can deploy without any problems.

Could it be that a service was down today? I had this error an hour ago but now it’s gone again.

Facing the same issue. And funny thing is they charge you for this error. Any luck for @clorieanne @jenkinshouse @reddy-v

Also have the same problem. Has someone solved this issue? 😃