Modular Omnichannel Commerce & Vendor Platform
“An architectural prototype demonstrating multi-vendor catalog isolation, real-time inventory locking, and webhook payment reconciliation.”
Bài Toán & Bối Cảnh Thực Tế
Standard e-commerce SaaS platforms charge punitive transaction commissions and lock vendors into rigid data schemas that cannot accommodate Vietnamese payment realities like automated VietQR reconciliation or custom ERP inventory sync.
Yêu Cầu & Ràng Buộc Kỹ Thuật
Strict multi-vendor data isolation preventing cross-tenant catalog leakage.
Transactional inventory locking to prevent overselling during flash checkout spikes.
Zero-fee QR payment verification via idempotent webhook reconcilers.
Giải Pháp Kiến Trúc Cốt Lõi
We designed an event-driven commerce architecture on Supabase PostgreSQL. Vendor inventories are partitioned by relational foreign keys and protected by RLS. The checkout pipeline executes row-level locking during order initiation and verifies payments asynchronously via banking webhook consumers.
Transactional Row-Level Locking
PostgreSQL FOR UPDATE transactions lock product inventory rows during checkout, completely eliminating race conditions and overselling.
Idempotent Webhook Consumer
VietQR payment notifications are validated with cryptographic hash verification and processed through an idempotent queue to reject duplicate transfers.
Role-Based Tenant Partitioning
Granular database policies ensure marketplace vendors can only view and update their own product stock and customer order histories.
Các Hạng Mục Đã Chuyển Giao
Bài Học Thực Chiến & Đúc Kết Kỹ Thuật
“Decoupling payment verification from client-side checkout state ensures transactions cannot be manipulated through front-end request tampering.”
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