Udacity Blockchain Capstone

The capstone will build upon the knowledge you have gained in the course in order to build a decentralized housing product.

Software Versions

  • Truffle v5.4.6 (core: 5.4.6)
  • Solidity - 0.8.7 (solc-js)
  • Node v14.17.1
  • Web3.js v1.5.1

Setup

  • Clone project: git clone https://github.com/shaneahern/Blockchain-Capstone.git
  • To deploy via Infura you'll need an Infura API keys are available for free at: infura.io/register
  • Edit Blockchain-Capstone/eth-contracts/truffle-config.js and replace <YOUR_INFURA_KEY_HERE> with your Infura key
  • You'll also need a mnemonic - the twelve word phrase the wallet uses to generate public/private key pairs.
  • Create a file at Blockchain-Capstone/eth-contracts/.secret and enter your wallet mnemonic there.

Compile Contracts and Run Tests

cd Blockchain-Capstone
cd eth-contracts
truffle compile
truffle test

Contract Abis

Abi for SquareVerifier.sol

[{"inputs":[{"components":[{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct Pairing.G1Point","name":"a","type":"tuple"},{"components":[{"internalType":"uint256[2]","name":"X","type":"uint256[2]"},{"internalType":"uint256[2]","name":"Y","type":"uint256[2]"}],"internalType":"struct Pairing.G2Point","name":"b","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct Pairing.G1Point","name":"c","type":"tuple"}],"internalType":"struct SquareVerifier.Proof","name":"proof","type":"tuple"},{"internalType":"uint256[2]","name":"input","type":"uint256[2]"}],"name":"verifyTx","outputs":[{"internalType":"bool","name":"r","type":"bool"}],"stateMutability":"view","type":"function","constant":true}]

Abi for SolnSquareVerifier.sol

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ol","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"paused","type":"bool"}],"name":"setPaused","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"},{"internalType":"address","name":"owner","type":"address"}],"name":"addSolution","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct Pairing.G1Point","name":"a","type":"tuple"},{"components":[{"internalType":"uint256[2]","name":"X","type":"uint256[2]"},{"internalType":"uint256[2]","name":"Y","type":"uint256[2]"}],"internalType":"struct Pairing.G2Point","name":"b","type":"tuple"},{"components":[{"internalType":"uint256","name":"X","type":"uint256"},{"internalType":"uint256","name":"Y","type":"uint256"}],"internalType":"struct Pairing.G1Point","name":"c","type":"tuple"}],"internalType":"struct SquareVerifier.Proof","name":"proof","type":"tuple"},{"internalType":"uint256[2]","name":"input","type":"uint256[2]"}],"name":"mintNFT","outputs":[],"stateMutability":"nonpayable","type":"function"}]

Project Resources