REALTY - Visit Realty

Realty is a proof of concept solution for crypto-based real estate purchase/payments with stablecoins. It builds on the idea of having another option for asset listing, investment, saving and payments in the real-estate ecosystem aside fiat currency.

Project track

• NFT and Defi Track

  • Stablecoins can be used for asset payments and listing, current support is only our test coin — TUSDT which you can request for from any team member. Further development of the project for mainstream usage will involve mainnet stablecoins like USDT, DAI etc.

  • NFTs are used for verifying listed assets authenticity on Realty and also as proof of ownership of an asset within Realty.

Project Video Demo

Realty.Demo.Video.mp4

Contract Flow

• listProperty : to submit an asset for listing
• approval : this should be done right before listProperty to give allowance to the Realty contract to transfer 0.5 of the stablecoin to Realty as a listing fee.
• minfNFT : to mint an NFT for the submitted property and thereby publiclly listing the asset for viewing and purchase by everyone.
• payForProperty : to pay for a particular property and have it's NFT transferred to you.
• addPropertyToSavingVault : Unable to pay upfront, add listed property to savings vault for instalmental savings.
• Deposit: sends a given amount of token to the contract. Tokens gets accumulated in order to amount to product price.
• Withdrawal: occurs once total savings equals product price. User withdrawals property price into wallet address for property purchase.

Using the dApp

• Connect Metamask(on Mumbai testnet)
• Visit Featured Properties from the navbar to see the available assets that have been listed.
• Click List Property on the navbar to list asset.
• DM us with your address for TUSDT needed to test listing on the dapp.
• Approve realty to list your asset for your price
• Fill the listing form and List your asset
• Mint an NFT for the asset right after you've submitted the asset for listing.
• Check Featured Properties to view your publicly listed asset.
• Click on Save to buy to add a listing to your savings vault.
• Click deposit, to deposit token amount into user vault.
• Click on withdraw to withdraw all tokens saved on a particular listing.
• Click on remove from vault to remove a listing from your vault, you can only remove a listing from vault after withdrawing all the tokens saved on it.

Tools Used

• Solidity
• Hardhat
• Openzeppelin contracts — ERC721.sol, ERC721URIStorage.sol, IERC20.sol
• JavaScript
• React js.
• Ethers.js
• Polygon (mumbai) chain
• Chakra UI
• IPFS via Web3.Storage
• Spheron

Deployments

• Live Site on Spheron: Realty

• Contract address : Realty on polygon scan

• Verified Contract : Realty contract on polygon scan

• Contract address : RealtyVault on polygon scan -Verified Contract : RealtyVault on polygon scan

To run locally :

  git clone https://github.com/NestcoinHack/Realty.git

  npm install
  npm start

or

  yarn install
  yarn start

To test contract

npx hardhat node
npx hardhat compile
npx hardhat test