Expo Router Example

Use expo-router to build native navigation using files in the app/ directory.

🚀 How to use

npx create-expo-app -e with-router

📝 Notes

• Expo Router: Docs
• Expo Router: Repo

Login With Google (How To)

Create an expo app with

npx create-expo-app -e with-router

Install firebase package npm install --save @react-native-firebase/app @react-native-firebase/auth

Go to https://rnfirebase.io/auth/social-auth#google

navigate to https://github.com/react-native-google-signin/google-signin#expo-installation

Install expo dev build npx expo install expo-dev-client

Create ease build. Docs for creating builds csn be found here: https://docs.expo.dev/develop/development-builds/create-a-build/.

Android eas build --profile development --platform android

iOS eas build --profile development --platform ios

iOS Simulator eas build --profile development-simulator --platform ios

eas.json config for iOS simulator

{
  "build": {
    
    // other builds here

    "development-simulator": {
      "developmentClient": true,
      "distribution": "internal",
      "ios": {
        "simulator": true
      }
    }
  }
}

in App.tsx import 'expo-dev-client'

Install google signin npx expo install @react-native-google-signin/google-signin

Add @react-native-google-signin/google-signin to app.json, android section:

"plugins": [
    "expo-router",
   "@react-native-google-signin/google-signin"
],

Go to firebase console and create an app. Add ios and android apps.

Android When registering the app, you need your apps package name, Debug signing certificate SHA-1 (optional)

For Debug signing certificate SHA-1 (optional) Run eas credentials on your terminal to get the sha1 signin key

click platform i.e android click the build type ex. development click Keystore: Manage everything needed to build your project click Set up a new keystore

on second Configuration: Build Credentials JR9ByjpwhV , select SHA1 Fingerprint and use it in firebase android register app Debug signing certificate SHA-1 (optional)

click next till you are done registering app. click the android app in the dashboard and click the settings cog beside it. Go to Your apps section at the bottom.

Now on the first Configuration: Build Credentials (Default) in the terminal, select SHA1 Fingerprint and add it to the sha certificate fingerprints for the app whose package is same as yours.

Go to authentication annd enable the auth login types you want. Download google-services.json file now.

In app.json, android section, add "googleServicesFile": "./google-services.json", To specify location of google services file

Rebuild Project Now eas build --profile development --platform android

After buils is done, scan the QR code given or copy link and open it in your device.

On the site opened, click install or click the ellipsis and click Download Build

Install and open the app.

In your terminal, start expo dev client

npx expo start --dev-client

Scan the new QR Code and it will open your app.

    GoogleSignin.configure({
    webClientId: '',
  });

To get this webClientId, go to google-services.json file oauth-client, client_type: 3 and copy its client_id. That is the webClientId.

To save info to an API, go to the firebase console, select your project, select the Project Overview settings cog, in the dashboard, click service accounts.

Select you preferred language. Download firebase admin config by clicking the Generate new private file button.

To get idToken to authenticate on the server, use

     const firebaseIdToken = await auth().currentUser.getIdToken();

My package name