Metamarket

Metamarket is a decentralized prediction market platform built with Next.js and Hardhat. Users can create, participate, and resolve markets using blockchain technology. It supports real-time tracking of bets, smart contract-based transactions, and local blockchain development using Ganache.

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Features

• ✅ Create Markets – Users can create prediction markets with custom questions and resolution sources.
• ✅ Place Bets – Participate by betting on "Yes" or "No" outcomes using ETH.
• ✅ Real-time Updates – Market shares and user positions are updated instantly.
• ✅ Resolve Markets – Market creators can resolve markets after the resolution date.
• ✅ User Dashboard – View your current bets, total positions, and claim payouts for resolved markets.
• ✅ Local Blockchain Support – Fully compatible with Ganache for testing and local development.
• ✅ Recharts Integration – Visualize market trends with real-time charts.
• ✅ Persistence – Market data is stored locally for instant reloads and offline testing.

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Getting Started

First, run the development server:

npm run dev
# or
yarn dev
# or
pnpm dev
# or
bun dev

Open http://localhost:3000 with your browser to see the result. Start editing the page by modifying app/page.js. The page auto-updates as you edit.

This project uses next/font to automatically optimize and load Geist, a modern font family by Vercel.

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Project Structure

├─ app/              # Next.js pages and components
├─ components/       # UI components (MarketCard, BetDrawer, etc.)
├─ scripts/          # Hardhat deployment scripts
├─ lib/              # Helper functions (contract interaction)
├─ ganache-data/     # Ganache blockchain DB
├─ package.json
└─ README.md

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Installation & Setup Guide

1. Create Next.js Project

npx create-next-app@latest .

2. Initialize Hardhat

npx hardhat --init

3. Install Dependencies

Add any extra dependencies as needed (e.g., OpenZeppelin).

4. Compile Solidity Contracts

npx hardhat compile

5. Deploy Contracts to a Network

npx hardhat run scripts/deploy.js --network ganache

Replace ganache with localhost, sepolia, megaeth, or other networks as needed.

6. Start Ganache Local Blockchain

npx ganache --wallet.seed "metamarket" --db ./ganache-data --port 8585

"metamarket" is the mnemonic; you can use a different one. This creates 100 ETH wallets for testing in Metamask.

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Ganache Network Details for Metamask

Field	Value / Instruction
Network Name	Ganache Localhost 8585
New RPC URL	http://127.0.0.1:8585
Chain ID	1337 (default Ganache chain ID)
Currency Symbol	ETH
Block Explorer URL	Leave empty (optional)

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Learn More

To learn more about the frameworks and tools used:

• Next.js Documentation – Learn about Next.js features and API.
• Hardhat Documentation – Learn about smart contract development.
• Ganache Documentation – For local blockchain testing.
• OpenZeppelin – For secure smart contract standards.

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Security & Best Practices

• Never expose private keys or mnemonic phrases in the repository.
• Use Ganache local blockchain for testing instead of real funds.
• Keep dependencies updated and monitor for vulnerabilities.
• Always validate user inputs before interacting with smart contracts.

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Happy Blockchain Verse 🤝

Metamarket combines decentralized finance, prediction markets, and modern web development for a complete Web3 experience.

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npx hardhat compile

npx hardhat run scripts/deploy.js --network ganache

for start the server of BLock

npx ganache --wallet.seed "metamarket" --db ./ganache-data --port 8545