This project demonstrates DIDs and the UPort Recovery Smart Contract system. This structure allows patients to entirely own and manage their accounts and data.
DID Documents are created as JSON objects and published to IPFS. The returned hash is stored within the contract. Verifiers can perform DID lookups to find patients and add attesations to the patients DID Document. If a patient loses the private key to their account they can have a delegate initiate a recovery. A vote occurs among delegates and if passed the public key stored in the Controller Contract is changed to the patients new public key.
To launch this Web App first install the dependencies
npm iIn one terminal try running
npx hardhat nodeIf error occurs run
npm install --save-dev "@nomicfoundation/hardhat-network-helpers@^1.0.0" "@nomiclabs/hardhat-etherscan@^3.0.0" "@types/mocha@>=9.1.0" "@typechain/ethers-v5@^10.1.0" "@typechain/hardhat@^6.1.2" "hardhat-gas-reporter@^1.0.8" "solidity-coverage@^0.8.1" "ts-node@>=8.0.0" "typechain@^8.1.0" "typescript@>=4.5.0"and then try running this again
npx hardhat nodeIn a second terminal (with the local blockchain active) run
npx hardhat run scripts/deploy.js --network localhostNow you are ready to start the webapp. In either the second terminal or new terminal run
npm start