bugFix#65
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🚀 Overview
This PR implements Google OAuth authentication for the ProShop-v2 application, allowing users to sign up and log in using their Google accounts. It also includes critical fixes for Node.js v25 compatibility and macOS port conflicts.
bug#62
✨ New Features
🔐 Google OAuth Integration
Frontend Integration: Added @react-oauth/google and integrated the GoogleOAuthProvider.
Reusable Components: Created a GoogleLoginButton component that handles the OAuth flow and communicates with the backend.
Enhanced UI: Added the Google login option to both the Login and Registration screens.
Unified Auth: Implemented logic to automatically link Google accounts to existing accounts if the emails match.
🛠 Backend Enhancements
User Model Update: Added googleId field and made password optional for OAuth-based users.
Secure Verification: Integrated google-auth-library to securely verify Google ID tokens on the server side.
Environment Configuration: Added support for GOOGLE_CLIENT_ID in environment variables.
🐛 Bug Fixes & Compatibility
Node.js v25 Fix: Upgraded jsonwebtoken to v9.0.2 to resolve the TypeError: Cannot read properties of undefined (reading 'prototype') error caused by the removal of SlowBuffer in newer Node versions.
macOS Port Conflict: Changed the default backend port from 5000 to 5001 to prevent conflicts with the macOS AirPlay Receiver service, which frequently causes 403 Forbidden errors on port 5000.
Proxy Update: Updated the frontend development proxy to correctly route requests to the new backend port.
📝 Configuration Requirements
To enable Google OAuth, the following environment variables must be set:
Backend (.env): GOOGLE_CLIENT_ID
Frontend (frontend/.env): REACT_APP_GOOGLE_CLIENT_ID