Using Niels explanation and Firebase account that Mohammed Reza created you should enable authentication for Google, Facebook and Twitter and create endpoints that allow you to retrieve the authentication token.
Getting started with firebase authentication for webhttps://firebase.google.com/docs/auth/web/start follow the guide to get it installed (there is a link) and read the entire page before you start!!
laila1222
commented
4 years ago
Using Niels explanation and Firebase account that Mohammed Reza created you should enable authentication for Google, Facebook and Twitter and create endpoints that allow you to retrieve the authentication token.
Getting started with firebase authentication for web https://firebase.google.com/docs/auth/web/start follow the guide to get it installed (there is a link) and read the entire page before you start!!
Sign in existing users with firebase https://firebase.google.com/docs/auth/web/start#sign_in_existing_users
Sign up new users with firebase https://firebase.google.com/docs/auth/web/start#sign_up_new_users
Manage the authentication state from firebase This is an observer that will get called every time a users authentication state changes (for example from not authentication to authenticated and the other way around) https://firebase.google.com/docs/auth/web/start#set_an_authentication_state_observer_and_get_user_data
Create a page for each sign in and sign up with the forms
Add the social sign methods as well
Google sign in https://firebase.google.com/docs/auth/web/google-signin
Facebook sign in https://firebase.google.com/docs/auth/web/facebook-login
Twitter sign in https://firebase.google.com/docs/auth/web/twitter-login
NOTE: that the social logins does not require sign up they handle both sign up and sign in in one 👍