Udacity CrytoStar DAPP

Build Requirements

To build locally requires the following:

• Truffle v5.3.0
• OpenZeppelin v4.0.0

Code

• The StarNotary smart contract is located in contracts\StarNotary.
• By default, the contract will be deployed with:
  • Name: StellaSaccus (Star Wallet in latin)
  • Symbol: STS
  • These properties can be changed by adjusting the migration script migrations\2_deploy_contracts.js

Rinkeby Deployment

Deployed contract details on the Rinkeby network:

• Contract address: 0xdCc8706Eb863AA411144f9F9378d99235ca6d017
• Deployment Transaction: 0x8b9d8310d5319b1b724198801fcc6b6310f5ffebfd499577576f3a66c8d3e112
• Deployment Account: 0xcabc744D0716AC4E65c16C78c45939708d7078d8

Building the SmartContract

• Adjust the 'networks - develop' section of truffle-config.js to suite your dev environment (the default is set to hostname 0.0.0.0 on port 8545, to support building on wsl2 running on Windows 10)
• Launch the local ethereum test network by running truffle develop in the base directory
• To build, execute compile
• To deploy, execute migrate --reset
• To test, execute test

Building the web application

• Change to the app directory
• Run npm install
• Run npm run dev
• Browse to http://localhost:8080, log in to Metamask, and connect to the local ethereum block chain

Deploying to Rinkeby (or other test network) using Infura

• Install the hardware wallet provider: npm install @truffle/hdwallet-provider
• Configure the network in truffle-config.js, including an infura project id and mnemonic (held in .secrets and not included in the repo)
• Launch the console, connected to the test network: npx truffle console --network rinkeby
• Check that you have an account with funding:
  • List accounts: await web3.eth.getAccounts()
  • Check balance: await web3.eth.getBalance('0x000MYACCOUNTID000')
• Deploy: migrate