12.1. App 12 with Firebase

In this module, we will build App 12, which will be a contacts list app using,

• Firebase Authentication

• Firebase Firestore

App12: My Contacts app

The overall goal is to build an app like the following:

The app has the following features:

• The user can create an account.

• The user can sign in.

• The user can store their contacts in a database.

• They can log out.

• Each authenticated user will have a separate contacts list.

Setting up your Firebase project in Firebase's Console

• Please set up your own Firebase project.

• Create your own App12 in Xcode.

• Add your app to Firebase project.

• Download and add the GoogleService-Info.plist to your Xcode project.

• Configure Firebase in AppDelegate.

• Patch up Firebase libraries, Auth, Firestore, FirestoreSwift, and Storage using Swift Package manager.

• Then use the code provided.

• Otherwise, you cannot see what is happening in Firebase.