Enable automatic profile login for the Firebase application

Imagine a web application created using Vue and Firebase. The main query revolves around automatically logging into the app after page reload, particularly accessing the database post authorization. Following user authentication, crucial data such as email and uid are retained in Firebase to enable editing and reading with specific rules:

.read": "auth != null",
".write": "auth != null"

Despite this setup, the "Last Login Date" field in the Authentication section remains unrefreshed unless a standard login method like email-password is utilized.

The recurring question is: how can one authenticate themselves in the database upon page reload on the browser? Is there a unique approach for achieving this? Appreciate your insights in advance :)

javascriptfirebasevue.jsfirebase-authentication

Answer №1

Your application code and configuration have no control over when Firebase updates the Last Login Date. While you could potentially require users to re-authenticate, it may not be the ideal solution as it can easily be bypassed.

If you are looking to track when a user last accessed your application rather than their last login date, you may want to consider implementing an analytics package for that purpose.

Another approach would be to create a "lastSeen" value in the database whenever the onAuthStateChanged event is triggered with a user profile. Below is an example of how this can be achieved using Firebase Realtime Database:

firebase.database().ref("lastSeen").child(user.uid).set(firebase.database.ServerValue.TIMESTAMP);

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