⛓️ Dapp Blockchain

A decentralized application (DApp) built on Ethereum using Solidity smart contracts, Hardhat development framework, and TypeScript.

• Smart contract development — Solidity contracts with full test coverage
• Local blockchain — Hardhat Network for fast local development
• TypeScript scripts — typed deployment and interaction scripts
• Contract artifacts — ABI + bytecode generated on compile
• Testnet ready — configurable for Sepolia, Goerli or mainnet

├── contracts/         # Solidity smart contracts
├── scripts/           # Deployment & interaction scripts
├── artifacts/         # Compiled contract ABIs and bytecode
├── hardhat.config.ts  # Hardhat configuration
└── tsconfig.json      # TypeScript config

• Node.js 18+
• npm

git clone https://github.com/eranCat/Dapp-blockchain.git
cd Dapp-blockchain
npm install

npx hardhat compile

npx hardhat test

# Start local node
npx hardhat node

# In another terminal
npx hardhat run scripts/deploy.ts --network localhost

# Add your private key and RPC URL to .env
npx hardhat run scripts/deploy.ts --network sepolia

PRIVATE_KEY=your_wallet_private_key
SEPOLIA_RPC_URL=https://sepolia.infura.io/v3/your_key

⚠️ Never commit your private key. Use .env and ensure it's in .gitignore.

Eran Karaso — Portfolio · GitHub