Firebase Authentication
Firebase Authentication provides an easy way to handle user authentication with email/password, social media accounts, and more. In this step, we will focus on email/password authentication.
Sign Up Users
The signUp function creates a new user with email and password:
function signUp() {
const email = document.getElementById('email').value;
const password = document.getElementById('password').value;
createUserWithEmailAndPassword(auth, email, password)
.then((userCredential) => {
const user = userCredential.user;
console.log('Sign Up Successful:', user);
})
.catch((error) => {
console.error('Error signing up:', error.message);
});
}
Explanation: This signUp function is used to create a new user account using the Firebase Authentication service. It retrieves the email and password values from the input fields with the IDs `email` and `password`, respectively. Then, it calls the `createUserWithEmailAndPassword` method with these values to create a new user account. If the account creation is successful, it logs a success message to the console along with the user object. If there is an error during account creation, it logs an error message to the console.
Log In Users
The logIn function logs in a user with email and password:
function logIn() {
const email = document.getElementById('email').value;
const password = document.getElementById('password').value;
signInWithEmailAndPassword(auth, email, password)
.then((userCredential) => {
const user = userCredential.user;
console.log('Log In Successful:', user);
})
.catch((error) => {
console.error('Error logging in:', error.message);
});
}
Explanation: The `logIn` function is used to authenticate a user with Firebase Authentication using their email and password. It retrieves the email and password values from the input fields with the IDs `email` and `password`, respectively. Then, it calls the `signInWithEmailAndPassword` method with these values to authenticate the user. If the authentication is successful, it logs a success message to the console along with the user object. If there is an error during authentication, it logs an error message to the console.
Adding Firebase to Your JavaScript Project
Firebase is a powerful platform that offers a range of services to enhance our web application. From authentication to real-time database storage, Firebase provides everything you need to create a dynamic and engaging user experience.
In this guide, we will go through the process of setting up Firebase in a JavaScript project and integrating Firebase Authentication and Realtime Database into a simple web application.