Blockchain technology has revolutionized various industries, offering secure and transparent record-keeping. This project explores the application of blockchain in real estate transactions, aiming to provide a decentralized platform for buying, selling, and financing properties. By leveraging blockchain, the project enhances security, reduces transaction costs, and streamlines the real estate process.

• NFT Property Ownership: Each property is represented as a non-fungible token (NFT) minted by the owner, ensuring proof of ownership and facilitating transactions.
• Smart Contract Transactions: Smart contracts handle transactions, including sales and financing agreements, ensuring transparency and security.
• MetaMask Integration: Users interact with the platform using MetaMask wallets, providing a secure and verified identity for all parties involved.
• Listing and Bidding: Sellers can list their properties with details such as address, square footage, and price. Buyers can browse listings and place bids or purchase at the listed price.
• Loan Request and Approval: Buyers can request loans from verified lenders, specifying the loan amount, interest rate, and repayment terms. Lenders can approve loan requests, and smart contracts manage loan repayment.

• Blockchain Network: Developed on the Polygon network, leveraging the Mumbai test network for testing purposes.
• Smart Contracts: Implemented using Solidity, with the openzeppelin framework for security and efficiency.
• Frontend: Built with React and TypeScript, providing a user-friendly interface for interacting with the marketplace.
• Backend: Utilizes InterPlanetary File System (IPFS) for storing property metadata and Pinata API for IPFS integration.
• Development Tools: Hardhat and Remix for Solidity development and testing, with GitHub for version control and collaboration.

• npm

  npm install npm@latest -g

• A digital wallet. Coinbase Wallet or Metamask is preferred, having them listening to port 8545
• Get a private key from PolygonScan to deploy smart contract
• Get a private key from Pinata to store NFT metadata
• Get a lookup url from Alchemy

1. Clone the repo

   git clone https://github.com/noodleslove/DSC180_ethstates.git

2. Install the package

   npm install

3. Create a .env file under root directory, and add the keys you get from your digital wallet, PolygonScan, and Alchemy

   WALLET_PRIVATE_KEY=
   ALCHEMY_AMONY_URL=
   POLYGONSCAN_KEY=

4. run the command to deploy the contract:

   npx hardhat run scripts/deployProxy.ts --network localhost

   You will get an implementation address looks like 0x... and then run the command

   npx hardhat verify [Your Implementation Address Here]

5. Go to the frontend directory

   cd frontend

   install the dependencies

   npm install

   create a file .env under current directory frontend, and add your pinata JWT

   VITE_PINATA_JWT=
   VITE_PINATA_GATEWAY=
   VITE_MARKETPLACE_DEFAULT_ADDRESS=
   VITE_ALCHEMY_AMONY_URL=

   and run the application

   npm run dev

   Your application should run on http://localhost:5173/ now.