Invalid custom tokens while using Google authentification

[SaeedHK]

Describe the bug

I would like to add Google authentication to the example you provided in the repository. Specifically, I modified signInOptions in example/components/FirebaseAuth.js as follows:

  signInOptions: [
    firebase.auth.GoogleAuthProvider.PROVIDER_ID,
  ],

Setting up my firebase config info, when I try to login I get the following error:

Error: Problem getting a refresh token: {"error":{"code":400,"message":"INVALID_CUSTOM_TOKEN","errors":[{"message":"INVALID_CUSTOM_TOKEN","domain":"global","reason":"invalid"}]}}

I checked the token in https://jwt.io/ and it also raised that the token is invalid.

Version

0.13.0-alpha.0

[qvanderlinden]

Hi, I am facing the same issue when running the repo example. The error occurs when setAuthCookies is called on the pages/api/login endpoint. Also using version 0.13.0-alpha.0

[kmjennison]

Some people have run into this problem because the Firebase email address was incorrect. Can you double-check your Firebase config?

Other people seem to run into this when their server time is incorrect.

I checked the token in https://jwt.io/ and it also raised that the token is invalid.

@SaeedHK If it's invalid, what is wrong with it?

I'll help where I can, though I unfortunately don't have much time to help investigate particular implementation problems.

[SaeedHK]

Thank you @kmjennison for your reply. You''re right, I made a mistake on the Firebase client email. Using the correct one, solved the problem.

[rooprob]

To note, the correct FIREBASE_CLIENT_EMAIL is the Google Cloud IAM Service Account email that matches up with the FIREBASE_PRIVATE_KEY.