Calculate amounts on the server
The server determines prices and validates payment references so checkout amounts do not depend on client-supplied totals.
Index of work02 / 10
Hospitality booking and commerce
Needachef
Needachef combines chef discovery and service bookings with a shop and other hospitality workflows. I delivered the application full stack as a contract project, connecting the customer-facing experience to booking, order, and payment behavior.
- Role
- Full-Stack Software Engineer
- Engagement
- Contract project
- Timeline
- August–September 2025
- Status
- Deployed · used by customers
(01) The problem
Customers needed a straightforward way to discover chefs, arrange bookings, and place shop orders.
(02) What I worked on
- 01
Customer and chef workflows
Built the discovery, chef profile, booking, and account flows that connect customers with hospitality services.
- 02
Shop and order flow
Implemented cart and order behavior alongside the booking experience, including pricing derived on the server rather than trusted from the browser.
- 03
Payment lifecycle
Connected Paystack checkout to server-side verification, retry handling, and transaction status reconciliation across the relevant payment paths.
- 04
Operational application areas
Delivered supporting chef, course, partner, and administrative workflows as part of the full-stack application.
(03) Engineering decisions
Model payment as a lifecycle
Checkout initiation, provider confirmation, retries, and reconciliation are separate states; returning from checkout alone is not treated as proof of payment.
(04) Delivery & status
Where it stands.
A deployed hospitality platform used by real customers, with booking and commerce workflows connected end to end.
- The platform is deployed and has been used by customers; no customer, booking, revenue, or payment-volume figures were measured for this portfolio record.
- The implementation includes payment checks, but I do not claim that every payment edge case or replay scenario is eliminated.
(05) Technology
- Next.js
- TypeScript
- React
- Prisma
- PostgreSQL
- Paystack