'Credential implementation provided to initializeApp() via the "credential" property failed to fetch a valid Google OAuth2

I have a NodeJS Firebase Function that uses firebase-admin sdk. It has been working alright since last year. In the last 2 weeks, the following error started showing in the log:

Credential implementation provided to initializeApp() via the "credential" property failed to fetch a valid Google OAuth2 access token with the following error: "Error fetching access token: 404 page not found

Could it be an issue with the version of "firebase-admin": "^7.3.0" I am using?

Have anyone faced the same issue and can you offer some direction on what might have been the cause?

firebasegoogle-cloud-platformgoogle-cloud-functionsgoogle-oauthfirebase-adminjavaandroidruntimeexceptiongreenrobot-eventbus


Solution 1:[1]

I have the same error, but I was already on Node 12. Also, the function was running well for years and now is crashing due to this :/

The only solution that worked for me was to change auth to admin from default to explicit passing of service-account.json like is described here in docs https://firebase.google.com/docs/reference/admin/node/admin.credential#cert

Solution 2:[2]

For those who are deploying to Google Cloud Functions, requirements:

  • Node >= 10

Initialisation:

const functions = require('firebase-functions');
const admin = require('firebase-admin');

admin.initializeApp();

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Dharman
Solution 2 Yash

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