Firebase SDK Authentication

Although incorporating authentication utilizing the Firebase SDK is time consuming, it has the upside of adaptability. Unlike FirebaseUI Auth, the Firebase SDK gives full control over the look, feel, and conduct of the verification process (except for any confirmation screens introduced by outsider verification providers). Consider the following sequence of steps while using Firebase SDK authentication:

1.  Identify the auth provider that you will be using in your project (Google, Facebook, Twitter, GitHub and so on).
2. Enable the appropriate provider in the Firebase console.
3. Register the application in the provider's console and obtain a token.
4. FirebaseAuth  reference or add the dependency in your project.
5. Using the AuthUI class, we need to set up and build the FirebaseUI Authentication intent.
6. Attach AuthStateListener to the FirebaseAuth instance for callback methods, using which we can reference them to the click event.
7. We have to design the complete UI for login, registering, and so on.

Authentication is a vital component in any application for protecting user data. Now that we have a fair understanding of Authentication, this is the time to drive it in the practical sense.