سوبر ماركت برو — نظام POS عربي

  ┌──────────────┐      ┌────────────┐      ┌─────────────┐
  │  client      │─────▶│   nginx    │─────▶│  next.js    │
  │  (browser)   │      │  (proxy)   │      │  (ssr)      │
  └──────────────┘      └─────┬──────┘      └──────┬──────┘
                              │                    │
                              ▼                    ▼
                        ┌───────────┐        ┌──────────┐
                        │ fastapi   │◀──────▶│ postgres │
                        │ (asyncio) │        │ (asyncpg)│
                        └───────────┘        └──────────┘

Stateless API behind a reverse proxy. SSR delivers HTML in under a second on warm cache. Connection pool keeps Postgres hot. JWT in HttpOnly cookie for the admin panel.

• SSR-first to keep TTFB < 1s on cold visits.
• Type-checked end-to-end via Pydantic schemas mirrored to TS.
• Migrations versioned via Alembic; zero-downtime restarts.