Boutique Facebook – instagram

				
					
        import org.springframework.web.bind.annotation.GetMapping;
        import org.springframework.web.bind.annotation.RequestParam;
        import org.springframework.web.bind.annotation.RestController;
        import java.util.*;
        @RestController
        public class CheckoutController {
           @GetMapping("/checkout")
           public Map<String, Object> checkout(
                   @RequestParam String products,
                   @RequestParam(required = false) String coupon) {
               // Parse products
               Map<String, Integer> productQuantities = new HashMap<>();
               for (String productEntry : products.split(",")) {
                   String[] parts = productEntry.split(":");
                   productQuantities.put(
                       parts[0], // Product ID
                       Integer.parseInt(parts[1]) // Quantity
                   );
               }
               // Build result
               Map<String, Object> result = new HashMap<>();
               result.put("products", productQuantities);
               result.put("coupon", coupon != null ? coupon : "No coupon applied");

               return result;
           }
        }