Economic / Web3 DApp
Node Sales Platform
Solo-built Web3 node sales platform: Factory-based multi-tier contracts + wallet signing purchase flow + backend operations APIs (sales/referrals/users/withdrawals) + admin dashboard.
- Role
- Solo builder · architecture, implementation, and operational tooling
- Period
- 2025
- Context
- Beatoz Labs
Solo-built Web3 node sales platform: Factory-based multi-tier contracts + wallet signing purchase flow + backend operations APIs (sales/referrals/users/withdrawals) + admin dashboard.
What made the system difficult.
Had to keep purchases verifiable (signature integrity, tier handling) while supporting real operations: referrals, admin controls, seller/user flows, email verification, and withdrawal handling.
How boundaries and flows answered it.
Implemented EIP-191 signature verification in both frontend signing flow and contracts (Factory purchase flow). Built an Express + TypeORM backend with JWT auth + permission middleware and operational route groups (sales/referrals/dashboard/withdrawals/users), plus a protected admin UI for day-2 operations.
Overview
- Solo-built Web3 node sales platform with contracts + backend + admin dashboard.
Key Components
- Factory-pattern contract architecture for tiers/products
- EIP-191 signature verification for purchase integrity
- Backend auth + permission middleware and operational tooling (sales/referral/dashboard/withdrawals/email verification)