How can I implement Firebase authentication in a TypeScript app?

How can I implement Firebase authentication in a TypeScript app?

You can start by installing Firebase SDK and initializing it in your TypeScript project. Would you like a code example?

Yes, please provide a code example for email/password authentication.

Sure! Here's a simple example:

import firebase from 'firebase/app';
import 'firebase/auth';

const firebaseConfig = { /* your config */ };
firebase.initializeApp(firebaseConfig);

const signUp = async (email: string, password: string) => {
  try {
    const userCredential = await firebase.auth().createUserWithEmailAndPassword(email, password);
    console.log('User signed up:', userCredential.user);
  } catch (error) {
    console.error('Error signing up:', error);
  }
};

This function will create a new user with email and password.

What about signing in an existing user?

For signing in, you can use the following code:

const signIn = async (email: string, password: string) => {
  try {
    const userCredential = await firebase.auth().signInWithEmailAndPassword(email, password);
    console.log('User signed in:', userCredential.user);
  } catch (error) {
    console.error('Error signing in:', error);
  }
};

This will authenticate the user with their email and password.