Multi-merchant delivery, Argentina
Zizu
The customer orders, the shop prepares, the courier delivers and the admin oversees everything, each on their own screen, with the same order updating live.
- end-to-end tests on every change, plus 57 unit tests
- 152
- versioned migrations that rebuild the whole database
- 118
Four screens, one order
Customer, shop, courier and admin see every status change instantly, without reloading.
Payments that add up
Mercado Pago confirmed server to server, with refunds and chargebacks, and a payment ledger that cannot be edited.
One order, one courier
If two couriers tap "Take" at the same time, only one wins. An automated test checks it.
