🏠 RealEstate Rental DApp

A decentralized platform enabling tenants to pay rent in ETH (pegged to USD) using Chainlink Price Feeds. Landlords can securely withdraw rent after the rental period ends.

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🔗 Live Demo

[deployed URL here]

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📜 Smart Contract Features

• Tenants create rental agreements by paying ETH equivalent to a specified USD amount.
• Real-time ETH/USD conversion via Chainlink Price Feeds.
• Landlords withdraw rent after the rental duration.
• Escrow-like mechanism: funds are locked until rental completion.

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💡 Technologies Used

Layer	Tech
Frontend	React.js, Wagmi, Viem (ethers optional)
Backend	Optional: Express.js
Smart Contracts	Solidity, Foundry or Hardhat
Oracles	Chainlink ETH/USD Price Feed
Network	Sepolia Testnet

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⚙️ Project Structure

realestate-rental/
├── contracts/
│   └── RealEstateRental.sol      # Main smart contract
├── frontend/
│   └── src/
│       ├── App.jsx              # React UI
│       ├── components/          # Rental form, history, etc.
│       └── contracts/           # ABI & deployed addresses
├── scripts/                     # Deployment scripts (Foundry/Hardhat)
├── foundry.toml / hardhat.config.js
└── README.md

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📦 Smart Contract: RealEstateRental.sol

🔐 Rental Struct

struct Rental {
    address tenant;
    address payable landlord;
    uint256 rentUSD;
    uint256 rentETH;
    uint256 startTime;
    uint256 duration;
    bool isActive;
    bool isWithdrawn;
}

🛠️ Key Functions

function createRental(address landlord, uint256 rentUSD, uint256 duration) external payable;
function withdrawRent(uint256 rentalId) external;
function getLatestPrice() public view returns (int);
function getAllRentals() public view returns (Rental[] memory);

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🖥️ Frontend Features

• Wallet connect (MetaMask)
• Create Rental Form (inputs: landlord, USD rent, duration)
• Rental History (tenant/landlord info, createdAt date, status)
• Withdraw button for landlords (enabled after duration)

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🚀 Getting Started

🔧 Deploy Contract

Using Foundry:

forge create --rpc-url <SEPOLIA_RPC> --private-key <PRIVATE_KEY> src/RealEstateRental.sol:RealEstateRental

Or using Hardhat:

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

🌐 Run Frontend

cd frontend
npm install
npm run dev

🧪 Testing

With Foundry:

forge test

Or with Hardhat:

npx hardhat test

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✨ Example Rental History Display

Tenant:    0x82Ff...
Landlord:  0x1234...
Rent:      50 USD
Duration:  604800 seconds (1 week)
Created:   2025-06-19 10:24 AM

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🙋‍♂️ Author

• Saikrishna A.
• GitHub
• ✉️ saikrishnaask191@gmail..com

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📄 License

MIT License – feel free to use and build upon this project.