pyrebase_auth.py

import pyrebase
config = {
  "apiKey": "Your API Key",
  "authDomain": "YourprojectId.firebaseapp.com",
  "databaseURL": "https://YourdatabaseName.firebaseio.com",
  "storageBucket": "YourprojectId.appspot.com",
  "serviceAccount": "path/toyour/serviceAccountCredentials.json"
}
# initialisatiing pyrebase
firebase = pyrebase.initialize_app(config)
auth = firebase.auth()
# To save extra data except password and username(optional)
# Get a reference to the database service
db = firebase.database()

# data to save
data = {
    "phone": "123456789"
}

# Pass the user's idToken to the push method
results = db.child("users").push(data, user['idToken'])

# How to Create a User
auth.create_user_with_email_and_password(email, password)

# For sending verification email 
auth.send_email_verification(user['idToken'])

# Password change
auth.send_password_reset_email("email")

# Get account info
auth.get_account_info(user['idToken'])

# Refreshing a token
user = auth.refresh(user['refreshToken'])

# Creating custom tokens
token = auth.create_custom_token("your_custom_id")