Mobile app · Gifts and delivery
Minguili
The project
Minguili is a Cameroonian platform for giving something to someone: flower and money bouquets, surprise baskets, beauty care at home, and express delivery. I worked on the three parts of the product: the mobile app, the API behind it and the back office used by the team.
- Period
- April – June 2025
- My role
- Software Engineer: the Expo / React Native mobile app, the NestJS API and the React back office.
- Result
- Published on Google Play.
What matters in the product
Prices computed on the server
The app never sends a price. The official quote comes from the API, so the final amount can be trusted.
Passwordless sign-in
A one-time code sent by email, valid for 10 minutes, with a limit on attempts.
Secure sessions
A 15-minute access token kept in memory, a refresh token in the phone’s secure storage, rotated on every use.
Verified payments
CinetPay payments: authenticated webhook, status re-read at the source, idempotent processing.
Built for slow connections
Persistent catalogue cache, optimised and preloaded images, a session that opens without waiting for the network.
Two languages
French by default, English available, and reduced motion respected.
Three parts, one product
Mobile app
Expo and React Native for Android and iOS: Surprise, Beauty and Express shops, order history and a delivery courier area.
API
NestJS and PostgreSQL, secure by default (roles, validation, rate limiting), documented with Swagger and deployed on Vercel.
Back office
React and Tailwind dashboard for administrators: orders, catalogue, users. About 80 KB of JavaScript on first load.
The app
Screens from the published app.
