Project Description

Smart Contract Wallet is a wallet as a deployed smart contract that can hold Ethereum and any ERC20 token. It can also send and receive Ethereum and ERC20 tokens.

Directory Structure 📜

• contracts: Smart contracts source code
• public : Create React App public folder
• src: The frontend source code
  • src/web3 : Custom web3modal login logic
• scripts : Scripts for deployment
• test : Unit testing

Installing 🔧

1. Clone the repository and open in your editor

git clone https://github.com/chrisalexadams/blockchain-developer-bootcamp-final-project
cd blockchain-developer-bootcamp-final-project
code .

2. Follow these steps to install and compile

• make a copy of .env.example and rename it to .env

• fill in your credentials in .env

• npm i

• npx hardhat compile

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Local Deployment and Testing

1. In a terminal, type

 npx hardhat node

• You should see the following output:

Started HTTP and WebSocket JSON-RPC server at http://127.0.0.1:8545/

Accounts
========

WARNING: These accounts, and their private keys, are publicly known.
Any funds sent to them on Mainnet or any other live network WILL BE LOST.

• Then a list of 20 accounts will be displayed with 10000 ETH each.

2. Open another terminal and type

npx hardhat run scripts/deploy.js --network localhost

• localhost is defined as port 8545 in hardhat.config.js
• You should see the following output:

Deploying contracts with the account: 0x...
Account balance: 10000000000000000000000
Wallet address: 0x...

3. Open another terminal and type

npx hardhat test --logs

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Deployment to Testnet

In order to use the contract as your wallet, you (as the owner) need to deploy it to the testnet.

• To deploy to your choice of Testnet Network, you can use the following command:

  npx hardhat run scripts/deploy.js --network <testnet of choice>

• To verify the source code, run this in the terminal:

  npx hardhat verify --network <testnet of choice> DEPLOYED_CONTRACT_ADDRESS

The contract is deployed by me (the owner) on the Rinkeby Testnet with the contract source code verified engaging in all functions:

• receiveERC20
• sendERC20
• sendEther
• receive()

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Start the Frontend

In a terminal, type

npm start

Tools

• Metamask Wallet
• Hardhat - Development framework and local blockchain
• React - Frontend framework
• Solidity - Ethereum smart contract language development
• Ethers - Library to interact with Ethereum nodes
• JavaScript - Front end and unit testing
• Infura - Connection to Ethereum
• Open Zeppelin - Smart contract libraries and interfaces

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ENS Address chrisa.eth