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AI Features

Track and Handle Authentication Status

Explore how to track user authentication status in real-time using Firebase's onAuthStateChanged function. Learn to manage sign-in state changes to ensure your web application responds dynamically to user authentication, enhancing secure user identification and interaction.

We’ve learned to sign up users, sign them out, and then sign them back in. Now, it’s time to learn how to set up a real-time listener to track users’ authentication status. This could be useful when we wish to perform certain actions based on whether or not a user is signed in.

Authentication state observers

For components of our application that need information about the signed-in user, we can attach an observer that is called whenever ...