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 checkout( @RequestParam String products, @RequestParam(required = false) String coupon) { // Parse products Map 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 result = new HashMap<>(); result.put("products", productQuantities); result.put("coupon", coupon != null ? coupon : "No coupon applied"); return result; } }

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Aja Lee

FretMaps Academy News

Fret-Calendar

Watch this video on how to use the Fret-Calendar to master your FretBoard. If you already have the FretMaps 365 Book then you can use one of the 12 Fret-Calendars inside your Guide Book as you follow along for this Free Lesson. You can get the GuideBook as a PDF or a Coloring Book Set, or as a single worksheet here

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