Case Study: Raffle Maniac
Overview
Raffle Maniac is a decentralized raffle platform built to redefine transparency, automation, and fairness in online prize draws. Designed and developed by Performix Business Services, the platform enables creators to launch verifiable raffles on-chain using NFT-based tickets and Chainlink-powered randomness.
Performix led the full-cycle development, encompassing smart contracts, automation logic, UX design, and operational readiness for mainnet deployment. The result: a secure, scalable, and provably fair platform ideal for community giveaways, brand activations, and reward-based campaigns.
Project Objectives
Performix was tasked with building a raffle ecosystem that:
- Eliminates bias through verifiable randomness (Chainlink VRF)
- Enables creators to launch raffles independently with transparent rules
- Supports automated winner selection and payout
- Delivers NFT-based ticket ownership and on-chain traceability
- Maintains audit-ready security and financial isolation between raffles
Core Architecture
Smart Contract Layer
- Raffle Engine (Raffle.sol)
Handles ERC-721 NFT ticketing, ticket validation, prize pool accounting, winner selection, and payouts. Includes full reentrancy protection and configurable safety mechanisms. - Factory Contract (RaffleFactory.sol)
Deploys new raffles with constraints (e.g., one active raffle per creator), enforces minimum ticket prices, and applies a creation fee. Maintains systemic control and consistency. - Chainlink VRF & Automation
- VRF (Verifiable Random Function): Generates tamper-proof randomness for winner selection.
- Automation: Periodically scans raffles to trigger draws, handle payouts, and reclaim unclaimed prizes without manual input.
Technical Features
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UX & Platform Design
Performix emphasized a clean, intuitive UX to make blockchain interaction seamless for non-technical users.
Key Screens
- Create Raffle: Intuitive form for setup with progress indicators and input validation.
- Overview Gallery: Searchable list of active and ended raffles with real-time prize pools.
- Profile Page: Displays raffles created, tickets owned, and transaction links.
- Admin Dashboard: Manages factory settings, system fees, and manual draw triggers.
- Wallet Connection: Secure entry point via MetaMask or WalletConnect with chain guidance.
Design Principles
- Glassmorphism UI for a polished Web3 aesthetic
- Auto-save for drafts and fault-tolerant session recovery
- Guided onboarding for wallet and gas fee understanding
Security & Fairness Framework
Performix implemented multiple layers of trust:
- On-chain Prize Pool Isolation: Only winner payouts are authorized.
- Verifiable Randomness: Chainlink VRF ensures immutable, unbiased results.
- Fail-safe Recovery: If automation fails, winners can claim manually within the claim window.
- Operational Safeguards: Multi-sig controls for factory parameters and fee withdrawals.
Deployment & Readiness
Performix ensured full deployment integrity through the following steps:
- Deploy Raffle.sol and RaffleFactory.sol
- Configure Chainlink VRF (coordinator, subscription ID, gas, key hash)
- Fund contracts with LINK for randomness and upkeep
- Register Chainlink Automation (150k–250k gas limit)
- Seed and verify test raffles end-to-end
- Integrate frontend UI with live contract events and admin APIs
The system passed comprehensive unit and integration testing using Hardhat, covering:
- Ticket sales and bulk purchase validation
- Refund and emergency pause handling
- Automation flows for draw, payout, and prize reclamation
Impact & Outcomes
Through this project, Performix demonstrated its ability to deliver enterprise-grade blockchain solutions with real-world usability.
Key achievements include:
- A fully decentralized raffle platform ready for production deployment
- End-to-end automation with minimal operational overhead
- Transparent and fair randomness powered by Chainlink
- Secure smart contract architecture with modular upgradability
- User experience tailored for both Web3 natives and newcomers
Conclusion
The Raffle Maniac project showcases Performix’s expertise in bridging blockchain engineering and user-centric design.
By combining audited smart contracts, secure automation, and a refined UX, Performix successfully delivered a platform that embodies trust, transparency, and technological sophistication — setting a new benchmark for fair digital raffles.