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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ABOUT US

Hi, I’m Romina – the soul behind Throwback Psychedelia.
I was born in Argentina, grew up surrounded by music, colors, and stories of the legends that shaped the 60s and 70s. For me, classic rock has never been just music—it’s freedom, rebellion, poetry, and a way of seeing life with deeper meaning.

I created this shop to keep that spirit alive. Every sticker, poster, and design is more than a product—it’s a piece of nostalgia, a tribute to the artists who changed the world, and a reminder not to let music fade away.

I believe that music is timeless and that people like us—the dreamers, the rebels, the old souls—are here to honor it and pass it on to new generations.

Throwback Psychedelia is not just about buying art. It’s about belonging to a community that feels the same chills when Pink Floyd plays, that finds freedom in Led Zeppelin’s riffs, and that smiles at the rebellious energy of The Doors.

So if you’re here, you’re in the right place. Welcome home, and never stop letting the music guide your journey.

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