MadeWithStone / pny-expo

🔥⚛️📱 Expo + Firebase Starter Kit

expo-firebase-starter

Is a quicker way to start with Expo + Firebase (using JS SDK) projects. It includes:

• based on Expo SDK 43
• navigation using react-navigation 6.x.x
• Firebase JS SDK v9
• Firebase as backend for email auth
• custom and reusable components
• custom hook to toggle password field visibility on a TextInput
• handles server errors using Formik
• Login, Signup & Password Reset form built using Formik & yup
• show/hide Password Field's visibility
• uses a custom Provider using Context API & Firebase's onAuthStateChanged handler to checks user's auth state with
• handles Forgot Password Reset using Firebase email method
• uses Expo Vector Icons
• uses KeyboardAwareScrollView package to handle keyboard appearance and automatically scrolls to focused TextInput
• uses dotenv and expo-constants packages to manage environment variables (so that they are not exposed on public repositories)
• all components are now functional components and use React Hooks

Installation

1. Create a new project using the firebase starter template.

$ npx create-react-native-app --template https://github.com/expo-community/expo-firebase-starter

2. Rename the file example.env to .env
3. Update .env with your own configuration, e.g.:

# Rename this file to ".env" before use
# Replace XXXX's with your own Firebase config keys
API_KEY=XXXX
AUTH_DOMAIN=XXXX
PROJECT_ID=XXXX
STORAGE_BUCKET=XXXX
MESSAGING_SENDER_ID=XXXX
APP_ID=XXXX

4. Start the project:

• yarn ios -- open on iOS
• yarn android -- open on Android

File Structure

Expo Firebase Starter
├── assets ➡️ All static assets, includes app logo
├── components ➡️ All re-suable UI components for form screens
│   └── Button.js ➡️ Custom Button component using Pressable, comes with two variants and handles opacity
│   └── TextInput.js ➡️ Custom TextInput component that supports left and right cons
│   └── Icon.js ➡️ Icon component
│   └── FormErrorMessage.js ➡️ Component to display server errors from Firebase
│   └── LoadingIndicator.js ➡️ Loading indicator component
│   └── Logo.js ➡️ Logo component
│   └── View.js ➡️ Custom View component that supports safe area views
├── hooks ➡️ All custom hook components
│   └── useTogglePasswordVisibility.js ➡️ A custom hook that toggles password visibility on a TextInput component on a confirm password field
├── config ➡️ All configuration files
│   └── firebase.js ➡️ Configuration file to initialize firebase with firebaseConfig and auth
│   └── images.js ➡️ Require image assets, reusable values across the app
│   └── theme.js ➡️ Default set of colors, reusable values across the app
├── providers ➡️ All custom providers that use React Context API
│   └── AuthenticatedUserProvider.js ➡️ An Auth User Context component that shares Firebase user object when logged-in
├── navigation
│   └── AppStack.js ➡️ Protected routes such as Home screen
│   └── AuthStack.js ➡️ Routes such as Login screen, when the user is not authenticated
│   └── RootNavigator.js ➡️ Switch between Auth screens and App screens based on Firebase user logged-in state
├── screens
│   └── ForgotPassword.js ➡️ Forgot Password screen component
│   └── HomeScreen.js ➡️ Protected route/screen component
│   └── LoginScreen.js ➡️ Login screen component
│   └── SignupScreen.js ➡️ Signup screen component
├── App.js ➡️ Entry Point for Mobile apps, wrap all providers here
├── app.config.js ➡️ Expo config file
└── babel.config.js ➡️ Babel config (should be using `babel-preset-expo`)

Screens

Main screens:

• Login
• Signup
• Forgot password
• Home (Bare Minimum) with a logout button

CAUTION Please Note

Expo uses Firebase Web SDK and does not support all Firebase services such as phone auth. If you are looking forward to use those services, please use react-native-firebase in a Expo bare project, or an Expo custom dev client or a plain React Native project.

Here is more on what and why Expo cannot support complete Firebase integration

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Built with love by @amanhimself