Flevario is a smart, QR-based coffee discount ecosystem connecting users and partner cafés.
It provides customers with daily savings through subscription plans (free and paid tiers) and gives cafés full control over discount rules and fraud prevention.
At its core, Flevario combines:
┌────────────────────────────┐
│ Client App │
│ (User: QR generation, plan │
│ management, usage stats) │
└────────────┬───────────────┘
│ (rotating QR)
▼
┌────────────────────────────┐
│ Merchant App (PWA) │
│ (Barista scans QR, selects │
│ products, confirms sale) │
└────────────┬───────────────┘
│ (secure API call)
▼
┌────────────────────────────┐
│ Flevario Server │
│ - Plan engine (eligibility)│
│ - Discount caps & limits │
│ - Cooldowns & replay guard │
│ - Store templates & rules │
│ - Logs & analytics │
└────────────────────────────┘
Data flow direction:
jti, plan info, timestamp).Handles all core logic, security, and data synchronization.
| Module | Function |
|---|---|
| Plan Engine | Determines user’s active tier, discount %, caps, and floor rules. |
| Eligibility Checker | Validates per-item price floor, cooldown, and cap. |
| Discount Calculator | Computes actual lei amount (with per-item cap). |
| Store Config Templates | Allow each café to adjust discount % within defined bands. |
| Anti-Fraud Engine | Validates token freshness, replay prevention, and cooldowns. |
| Audit & Analytics | Logs redemptions, store exposure, and user savings. |