implement-oauth-authentication-in-frontend

[Ankit-Kum-ar]

OAuth Integration (Google SSO)

Implemented Google OAuth using passport-google-oauth20. The frontend flow is fully working and Google authentication completes successfully. To make it work with the backend, the following changes were required and have been applied locally:

Backend Code Changes

To support Google OAuth on the backend, the following updates were made:

1. CORS Configuration (app.js) -
   Enabled CORS for frontend communication by specifying the origin and allowing credentials:

	app.use(cors({
	  origin: 'http://localhost:3000',
	  credentials: true
	}));

2. Updated Auth Route (app.js) -
   Changed the auth route prefix from /auth to /api/auth to align with the frontend API calls:

	// app.use('/auth', authRoutes);
	app.use('/api/auth', authRoutes);

3. Dotenv Import (passport.config.js) -
   Ensured environment variables are loaded by importing and configuring dotenv:

import dotenv from 'dotenv';
dotenv.config();

After making these changes, test the complete OAuth flow from frontend to backend to ensure everything works as expected.