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    Firebase 101

    Receive aemail containing the next unit.
    • Introduction to FirebaseApp
      • 1.1Overview of Firebase
      • 1.2Services offered by Firebase
      • 1.3Setting up Firebase on different platforms
    • Firebase Authentication
      • 2.1Introduction to Firebase Authentication
      • 2.2Firebase Sign-In Methods
      • 2.3User Authentication using Firebase
    • Firebase Database
      • 3.1Understanding Firebase Realtime Database and Cloud Firestore
      • 3.2Data Structure and Retrieval
      • 3.3Handling Real-time Data
    • Firebase Cloud Functions
      • 4.1Introduction to Cloud Functions
      • 4.2Managing Cloud Functions
      • 4.3Common Use Cases
    • Firebase Cloud Storage
      • 5.1Understanding Firebase Cloud Storage
      • 5.2Uploading Files and Directories
      • 5.3File Management and Security
    • Firebase Analytics
      • 6.1Introduction to Firebase Analytics
      • 6.2Implementing Firebase Analytics
      • 6.3Analyzing Data
    • Firebase Performance Monitoring
      • 7.1Introduction to Performance Monitoring
      • 7.2Working with Performance Monitoring
      • 7.3Making Performance Improvements
    • Firebase Test Lab
      • 8.1Introduction to Firebase Test Lab
      • 8.2Running Tests on Test Lab
      • 8.3Analyzing Test Results
    • Firebase App Distribution
      • 9.1Introduction to App Distribution
      • 9.2Distributing Pre-Release Versions
      • 9.3Managing App Distribution
    • Firebase ML Kit
      • 10.1Introduction to ML Kit
      • 10.2Implementing ML Features
      • 10.3Working with ML Models
    • Firebase Crashlytics
      • 11.1Introduction to Crashlytics
      • 11.2Setting up Crashlytics
      • 11.3Making Use of Crashlytics Data
    • Firebase Predictions
      • 12.1Introduction to Firebase Predictions
      • 12.2Creating Predictions
      • 12.3Applying Predictions
    • Summary and Advanced Topics
      • 13.1Review of Learned Concepts
      • 13.2Exploring Some Advanced Topics
      • 13.3Real-world Applications of Firebase
      • 13.4Next Steps and Future Learning

    Firebase Authentication

    User Authentication using Firebase

    act of confirming the truth of an attribute of a datum or entity, often used as part of access control

    Act of confirming the truth of an attribute of a datum or entity, often used as part of access control.

    User authentication is a crucial part of most applications. Firebase Authentication provides a secure and reliable way to authenticate users, and in this article, we will explore how to implement it in your applications.

    Setting Up Firebase Authentication

    Before you can use Firebase Authentication, you need to set it up in your Firebase project. Here are the steps:

    1. Go to the Firebase console and create a new project or select an existing one.
    2. Click on the 'Authentication' section in the left-hand menu.
    3. Click on the 'Set up sign-in method' button.
    4. Enable the sign-in methods you want to use in your application.

    Implementing User Sign-Up and Sign-In

    Once you have set up Firebase Authentication, you can implement user sign-up and sign-in in your application. Firebase provides SDKs for various platforms, including Android, iOS, and Web, which make it easy to implement these features.

    Here is a basic example of how to sign up a user with an email and password:

    firebase.auth().createUserWithEmailAndPassword(email, password) .then((userCredential) => { // Sign up successful. var user = userCredential.user; }) .catch((error) => { // An error occurred. var errorCode = error.code; var errorMessage = error.message; });

    And here is how to sign in a user with an email and password:

    firebase.auth().signInWithEmailAndPassword(email, password) .then((userCredential) => { // Sign in successful. var user = userCredential.user; }) .catch((error) => { // An error occurred. var errorCode = error.code; var errorMessage = error.message; });

    Managing User Accounts

    Firebase Authentication also provides features for managing user accounts. You can get the currently signed-in user, update a user's email or password, send a password reset email, and more.

    Here is how to get the currently signed-in user:

    var user = firebase.auth().currentUser; if (user) { // User is signed in. } else { // No user is signed in. }

    Handling Account Recovery

    Account recovery is an important part of user authentication. Firebase Authentication makes it easy to implement account recovery by providing a method to send a password reset email.

    Here is how to send a password reset email:

    var emailAddress = "user@example.com"; firebase.auth().sendPasswordResetEmail(emailAddress) .then(() => { // Email sent. }) .catch((error) => { // An error occurred. });

    Securing User Data

    Firebase Authentication provides several security features to help protect user data. These include automatic session management, secure password hashing, and the ability to enforce strong passwords.

    Monitoring Authentication Events

    Firebase Authentication allows you to monitor authentication events in your application. This can be useful for performing actions when a user signs in or out, for example.

    Here is how to set up an authentication state observer:

    firebase.auth().onAuthStateChanged((user) => { if (user) { // User is signed in. } else { // User is signed out. } });

    Integrating Firebase Authentication with Other Firebase Services

    Firebase Authentication integrates seamlessly with other Firebase services. For example, you can use the authenticated user's ID to store user-specific data in Cloud Firestore or the Realtime Database.

    By implementing Firebase Authentication in your applications, you can provide a secure and reliable way for users to sign in, manage their accounts, and recover their accounts if necessary. This will not only improve the user experience but also help protect user data.

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    Next up: Understanding Firebase Realtime Database and Cloud Firestore