QUIK ERP

QUIK ERP addresses GST compliance, drug inventory tracking, batch/expiry management, purchase workflows, reporting, barcode scanning, and supplier coordination for Indian veterinary pharmacy operations — connecting purchase, invoice, stock, and financial records through one transaction history with role-aware access.

Small pharmacies and veterinary retail teams need strict inventory and billing control without the complexity or cost of enterprise ERP systems — and, specifically, correct GST classification and filing-ready records from day one.

Built a focused ERP with a React + Tailwind + Vite frontend (barcode scanning via ZXing, printable invoices, a reports engine) and a Node.js/Express/TypeScript backend split into seven service modules: Auth, Inventory, Sales, Purchase, Reports, Accounting, and Dashboard.

Prisma ORM schema with UUID primary keys and soft-delete support, PostgreSQL serializable transactions for stock-movement integrity, JWT-based auth with role-based access control (SUPER_ADMIN, ADMIN, PHARMACIST, SALES_STAFF, ACCOUNTANT, WAREHOUSE_STAFF), and the full stack containerized with Docker Compose.

• Snapshot seller GSTIN and state code on every invoice rather than joining to a live settings table, so historical invoices stay accurate if business registration details change
• Compute and store supply_type/transaction_type deterministically at invoice creation, so GSTR-1 aggregation is a simple grouped query instead of a conditional nest at report time

Seeded medicine records

1,000+

• Deployed for pharmacy operations and used for daily billing, inventory reconciliation, and monthly reporting
• Seeded database with 1000+ medicines

• Source repository

• Building GST Compliance Into a SaaS Product