Uwin
Uwin prediction venue with on-chain settlement
Uwin is a prediction marketplace inspired by Polymarket: users trade outcome shares on real-world events, with transparent resolution rules and liquidity around binary and multi-outcome markets.
Technology stack
Technology stack
- MongoDB
- Express
- React
- Angular
- Node.js
- Solidity
- Chainlink
Representative technologies from the delivery-not an exhaustive inventory of every dependency or internal tool.
Challenge
Balancing fast off-chain UX with trustworthy settlement required clear oracle boundaries, collateral accounting, and protection against ambiguous or disputed resolutions without freezing user funds.
Approach
We used a MEAN/MERN hybrid the client standardised on: MongoDB and Express APIs for market metadata, user positions, and risk dashboards; Angular for an early operator console and React for the trader-facing app; Node.js workers for indexing and notifications. Smart contracts handled collateral, share minting/burning, and resolution hooks integrated with audited oracle feeds where events were objective.
Outcome
A working prediction venue with market creation workflows, order-style matching patterns, and resolution playbooks the operations team could run without engineering for every event.