POS & Inventory Platform
Full-stack POS & inventory platform with offline-first sync
A POS and inventory management platform: a Node.js/TypeScript REST API on PostgreSQL paired with a Flutter app that keeps working offline and syncs when connectivity returns.
Both repositories are private. The offline-first sync engine and the PostgreSQL schema behind it are explained below.
About this project
A complete point-of-sale and inventory system for retail businesses. The backend is a TypeScript/Node.js REST API backed by PostgreSQL with JWT authentication, fully documented with Swagger, with a health-check endpoint.
The Flutter client is engineered offline-first: sales, stock updates and reports keep working with zero connectivity, then reconcile automatically through a custom sync engine when the device comes back online — a hard requirement for shops with unreliable internet.
Releases went through a CI/CD pipeline on GitHub Actions.
Key features
- Offline-first sales & inventory with automatic sync
- JWT-secured REST API with Swagger documentation
- Sales, stock, closing and reporting modules
- Health-check endpoint
- CI/CD via GitHub Actions
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