Shopify OAuth 2.0 Authorization Code Grant server for custom app installation.
GET /auth/install?shop=YOUR_STORE.myshopify.com
Start OAuth flow - redirects to Shopify for authorization
Protected endpoints requiring X-API-Key header:
GET /api/token/:shop
Retrieve access token for a shop
GET /api/shops
List all installed shops
DELETE /api/token/:shop
Remove shop (uninstall)
Server running on port 3000