OrderFlow Backend MVP

A minimal transactional backend inspired by core e-commerce order logic.

Built to model atomic checkout, inventory reservation, and safe order cancellation.

Tech Stack

• Node.js
• TypeScript
• Express
• PostgreSQL
• Prisma
• Zod
• JWT

Features

• User registration & login (Customer / Seller)
• Seller product management
• Inventory management (available / reserved)
• Customer cart
• Atomic checkout (transactional)
• Order cancellation with inventory restoration

Core Guarantees

• Inventory never goes negative
• Checkout is atomic
• Order price is snapshotted at purchase time
• Cancel restores reserved stock safely
• Invalid state transitions fail

What Is Not Included

• Payments
• Shipping
• Refund system
• Notifications
• Frontend
• Microservices

Run Locally

pnpm install
docker compose up -d
pnpm prisma migrate dev
pnpm run dev