Add Google Sign-Up Integration to feat/group-creation Branch

[Devasy]

Overview

Integrate Google Sign-Up/Sign-In functionality into the feat/group-creation branch to provide users with seamless OAuth authentication options.

Current State

• Group creation and management features are implemented in feat/group-creation
• Missing Google OAuth integration for user authentication
• Users currently limited to email/password authentication only

Impacted Areas

• frontend/src/screens/auth/ - Login and Sign-up screens
• frontend/src/services/auth.js - Authentication service layer
• backend/app/auth/ - Backend OAuth handling (if required)
• Expo configuration for Google OAuth setup
• Firebase/Google Cloud Console configuration

Implementation Requirements

• Set up Google OAuth credentials in Google Cloud Console
• Configure Expo for Google authentication
• Add Google Sign-In button to login/signup screens
• Implement OAuth flow with token handling
• Integrate with existing authentication service
• Handle user profile creation from Google account data
• Add proper error handling for OAuth failures

Technical Details

// Required dependencies
expo-auth-session
expo-crypto
@react-native-google-signin/google-signin

Security Considerations

• Secure token storage using Expo SecureStore
• Validate OAuth tokens on backend
• Handle refresh token rotation
• Implement proper logout with token revocation

Acceptance Criteria

• Google Sign-In button is available on authentication screens
• Users can successfully authenticate using Google OAuth
• User profiles are created/updated from Google account information
• OAuth tokens are securely stored and managed
• Error handling covers OAuth failures and network issues

Estimated Effort: Medium - OAuth integration and security implementation

[Devasy]

Assigned to @meghan9908

[meghan9908]

Hey @Devasy23 just completed google authentication implementation

[Devasy]

Great work, I'm looking forward to the PR

[meghan9908]

hi @Devasy23

[meghan9908]

hey @Devasy23 the googel authentication is working fine but i think there is an issue with redirect url https://auth.expo.io/@devasy23/frontend