Social login (OAuth)

ExchangePro supports Google and Facebook login via Laravel Socialite. Credentials are stored in the database (admin settings) and applied at runtime.

User flow

1. User clicks Google or Facebook on /signin or /signup.
2. Browser redirects to {API_URL}/api/auth/{provider}/redirect.
3. Provider authenticates user.
4. Callback: {API_URL}/api/auth/{provider}/callback.
5. API creates or links user, starts session, redirects to frontend.

Admin configuration

Admin → Settings → Social login

Field	Description
Status	Enable/disable provider
Client ID	OAuth app ID
Client secret	OAuth secret

Google Cloud Console

1. Create OAuth 2.0 Web application credentials.
2. Authorized redirect URI:

   https://api.yourdomain.com/api/auth/google/callback

3. Copy Client ID and Client Secret into admin settings.

Facebook Login

1. Create app at Meta for Developers.
2. Add Valid OAuth Redirect URI:

   https://api.yourdomain.com/api/auth/facebook/callback

3. Copy App ID and App Secret.

Important URLs

Variable	Must match
APP_URL	Exact origin used in redirect URI
Redirect URI path	/api/auth/{provider}/callback

Local example:

http://localhost:8000/api/auth/google/callback

New users via OAuth

OAuth registrations receive a random password hash; users sign in via provider only unless they set a password later in profile.

If no admin exists, the first OAuth user may still need manual role assignment - prefer email signup for the first admin, or promote user in Users.

Troubleshooting

Error	Fix
redirect_uri_mismatch	Redirect URI must exactly match Google/Facebook settings
Callback 404	APP_URL wrong; web server must route /api/* to Laravel
Session not kept	CORS & Sanctum