DuniaTopup | Automated Game Top-up & Voucher Store by Maulana Royyan TsubaisaDuniaTopup | Automated Game Top-up & Voucher Store by Maulana Royyan Tsubaisa
DuniaTopup | Automated Game Top-up & Voucher Store
DuniaTopup: connecting a digital storefront to reliable order fulfillment.
The problem
Manual game top-ups and voucher orders become difficult to track when payment checks and delivery are handled separately.
My solution
I built a storefront and checkout workflow that connects payment status to automatic digital-product fulfillment.
Key features
• Game top-ups and digital vouchers
• Payment gateway integration and status tracking
• Automatic fulfillment pipeline
• An operations dashboard and multiple user roles
Engineering notes
The engineering challenge was handling concurrent orders and reconciling payment webhooks. Idempotent updates and queue-based fulfillment help avoid processing the same payment twice.