how to get offline_token in firebase auth?

[Utkarsh Bhimte]

The requirement of the app is that I should be able to query data of a user's google calendar list and be able to notify him using a Cron job. 

If I use the additional scope on firebase auth, how can I use that token to query data from a firebase function, I am also curious about how the token refresh will work in this given situation?

[Sam Stern]

Hi Utkarsh,

When you use Firebase Auth with Google Sign In we do a one time exchange to get the user's information.  Firebase does not keep the Google access/refresh/offline tokens and deal with them over time.  If your app needs offline access to the Google user's account you'll have to manage those tokens yourself.

See this guide for an Android example:
https://developers.google.com/identity/sign-in/android/offline-access

- Sam

On Sat, May 2, 2020 at 11:11 AM Utkarsh Bhimte <workwit...@gmail.com> wrote:

The requirement of the app is that I should be able to query data of a user's google calendar list and be able to notify him using a Cron job. 

If I use the additional scope on firebase auth, how can I use that token to query data from a firebase function, I am also curious about how the token refresh will work in this given situation?

--
You received this message because you are subscribed to the Google Groups "Firebase Google Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to firebase-tal...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/edfbe5f0-114d-4564-8afa-32a5a0df2f6c%40googlegroups.com.

[Utkarsh Bhimte]

In that case, I think I'll have to use Google Oauth server-side and then link those credentials to Firebase auth, right? 

I am using firestore and I want the firestore db rules to work properly that is why I want to link the Google auth with Firebase.

To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/CAHafJBqfBu%2Bo4M8izzaVLx1fJusrRBnACCm9DKRug4ckDq5DdA%40mail.gmail.com.

[Sam Stern]

Hi Utkarsh,

So you'll want to do a few things:

1. Use Google Sign In client side to get an ID token as well as the tokens you need for offline access.
2. Use the ID token client side to sign in with Firebase (signInWithCredential)
3. Send the offline access tokens to your server to save them for future use.

Hope that helps,

Sam

To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/CAOscDFDwfO7y%2B78Lm0SaJg5ZrYeP8%2BL-HR-8DZQ1ZCKeKWeT%3Dw%40mail.gmail.com.

[Utkarsh Bhimte]

The tokens I am getting in the frontend auth, refresh token is not there. How should I handle token refreshes? 

To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/CAHafJBrxCqDFen%3D2BuxQf0Fx-ycAYRDVA7M3c0nSPCgRpX61Sw%40mail.gmail.com.

[Sam Stern]

Hi Utkarsh,

You need to send the server auth code you get from Google Sign In to your server where you can exchange it for a refresh token (if you have the right scopes, etc).  This really has nothing to do with Firebase Auth, it's something you'll have to do separately using the Google Sign In APIs.  If you're not sure how to do this I suggest asking on StackOverflow.

- Sam

To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/CAOscDFC85TFSm497A6d7wqkBUGzD975_QnSRrB2Wm0B_vBU0dw%40mail.gmail.com.

[Utkarsh Bhimte]

Thanks, Sam, I will look into it, truly appreciate your help. 😊

To view this discussion on the web visit https://groups.google.com/d/msgid/firebase-talk/CAHafJBpv-43_FaW33Foum3RivwH_Mvq5Ay37KQgJ4qsyJWrWUg%40mail.gmail.com.