Case study · 02 / 03· E-commerce
Helix Storefront
Headless commerce engine with payments, inventory, and analytics in one stack.
Year2026
ClientConceptual study
RoleArchitecture & design
CategoryE-commerce
E-commerce02 / 03
Sandbox
One product. Two surfaces.
Toggle between the web and mobile views — same logic, same data, same brand.
The challenge
Headless commerce stack with conversion lag and inventory drift across three regional warehouses.
The execution
We replaced an existing plugin chain with a unified API layer on FastAPI talking to PostgreSQL for inventory and Stripe for payments. The Next.js storefront edge-deploys globally; the Flutter mobile app shares the same API. Webhooks now retry with dead-letter queues; inventory drift dropped to zero.
The stack
What's under the hood.
Frontend
Next.jsFlutterTypeScript
Backend
FastAPIPostgreSQLStripe
Infrastructure
CoolifyEdge cache
The result
Outcomes that actually shipped.
10×Checkout speed
0Inventory drift
3 regionsEdge deployed
See it live
Production deployment, access on request.