Promoy Market

// Overview

A B2B restocking marketplace for shops. Split out of the monolith into its own service: no DRF, fully async Django views on ASGI + uvicorn.

// What I built

1. 01

   Async rule: no lazy relations, everything preloaded with select/prefetch

2. 02

   Checkout uses select_for_update + transaction.atomic, race-free

3. 03

   SSO via the 2pay token, user and company synced through a Redis cache

4. 04

   Frontend: Vue 3 + Tailwind 4, CRM plays a sound and pushes a notification on new orders

// Where it sits

• Web / SPAvue · react · next
• Django APIdrf · async · asgi
• PostgreSQLprimary db
• Rediscache · broker