๐๐ญ๐๐ค๐ข๐ง๐ ๐๐ฆ๐๐ซ๐ญ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ ๐๐ซ๐จ๐ฃ๐๐๐ญ
#Overview This project implements a staking smart contract system using Solidity and Hardhat. Users can stake ERC20 tokens and earn rewards over time. The system includes a main Staking contract, along with separate ERC20 tokens for staking and rewards.
๐ ๐๐๐ญ๐ฎ๐ซ๐๐ฌ Stake ERC20 tokens Earn rewards based on staking duration and amount Withdraw staked tokens Claim accumulated rewards Configurable reward rate
๐๐๐๐ก๐ง๐จ๐ฅ๐จ๐ ๐ข๐๐ฌ ๐๐ฌ๐๐ Solidity ^0.8.0 Hardhat Ethers.js OpenZeppelin Contracts Chai (for testing)
๐๐ซ๐จ๐ฃ๐๐๐ญ ๐๐ญ๐ซ๐ฎ๐๐ญ๐ฎ๐ซ๐ โโโ contracts/ โ โโโ Staking.sol โ โโโ RewardToken.sol โ โโโ StakedToken.sol โโโ test/ โ โโโ Staking.js โโโ scripts/ โโโ hardhat.config.js โโโ package.json Setup
๐๐ฅ๐จ๐ง๐ ๐ญ๐ก๐ ๐ซ๐๐ฉ๐จ๐ฌ๐ข๐ญ๐จ๐ซ๐ฒ: git clone cd
๐๐ง๐ฌ๐ญ๐๐ฅ๐ฅ ๐๐๐ฉ๐๐ง๐๐๐ง๐๐ข๐๐ฌ: npm install
๐๐จ๐ฆ๐ฉ๐ข๐ฅ๐ ๐ญ๐ก๐ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ๐ฌ: npx hardhat compile
๐๐ฎ๐ง ๐ญ๐๐ฌ๐ญ๐ฌ: npx hardhat test
๐๐ฎ๐ง๐ง๐ข๐ง๐ ๐๐๐ฌ๐ญ๐ฌ: The project includes a comprehensive test suite. To run the tests: npx hardhat test This will run all tests in the test/ directory. Deployment ๐๐จ ๐๐๐ฉ๐ฅ๐จ๐ฒ ๐ญ๐ก๐ ๐๐จ๐ง๐ญ๐ซ๐๐๐ญ๐ฌ ๐ญ๐จ ๐ ๐ง๐๐ญ๐ฐ๐จ๐ซ๐ค:
Set up your network configuration in hardhat.config.js Create a deployment script in the scripts/ directory ๐๐ฎ๐ง ๐ญ๐ก๐ ๐๐๐ฉ๐ฅ๐จ๐ฒ๐ฆ๐๐ง๐ญ ๐ฌ๐๐ซ๐ข๐ฉ๐ญ: npx hardhat run scripts/deploy.js --network
๐๐จ๐ง๐ญ๐ซ๐๐๐ญ ๐๐๐ญ๐๐ข๐ฅ๐ฌ Staking.sol The main contract that handles staking, withdrawing, and reward distribution.
๐๐๐ฒ ๐๐ฎ๐ง๐๐ญ๐ข๐จ๐ง๐ฌ: Stake(uint256 _amount): Stake tokens Withdraw(uint256 _amount): Withdraw staked tokens ClaimReward(): Claim accumulated rewards
RewardToken.sol and StakedToken.sol ERC20 token contracts for the reward and staked tokens respectively. Security Considerations
The contract uses OpenZeppelin's SafeMath library to prevent overflow/underflow issues. Token transfers are checked for success to prevent silent failures. The contract includes access control to prevent unauthorized actions.
๐๐จ๐ฐ๐๐ฏ๐๐ซ, ๐๐๐๐จ๐ซ๐ ๐๐๐ฉ๐ฅ๐จ๐ฒ๐ข๐ง๐ ๐ญ๐จ ๐ ๐ฅ๐ข๐ฏ๐ ๐ง๐๐ญ๐ฐ๐จ๐ซ๐ค:
Conduct a thorough code review. Consider getting a professional audit, especially if significant value will be managed by the contract. Test extensively on a testnet before deploying to mainnet.
Contributing Contributions are welcome! Please feel free to submit a Pull Request. ๐๐ข๐๐๐ง๐ฌ๐ ๐๐ก๐ข๐ฌ ๐ฉ๐ซ๐จ๐ฃ๐๐๐ญ ๐ข๐ฌ ๐ฅ๐ข๐๐๐ง๐ฌ๐๐ ๐ฎ๐ง๐๐๐ซ ๐ญ๐ก๐ ๐๐๐ ๐๐ข๐๐๐ง๐ฌ๐.