Deploying Upgradeable Contracts using UUPS with Hardhat

This project demonstrates the implementation of upgradeable smart contracts using the UUPS (Universal Upgradeable Proxy Standard) pattern with OpenZeppelin and Hardhat.

Project Structure

The project contains two main contracts:

1. Counter.sol: The initial implementation of a simple counter contract.
2. CounterV2.sol: An upgraded version of the counter contract with additional functionality.

Both contracts are designed to be upgradeable using the UUPS pattern.

Setup

1. Clone the repository
2. Install dependencies:

   npm install

Available Scripts

In the project directory, you can run:

npx hardhat compile
npx hardhat test
npx hardhat run scripts/deploy.js
npx hardhat run scripts/upgrade.js

Key Features

• Implementation of UUPS upgradeable contracts
• Use of OpenZeppelin's upgradeable contracts
• Hardhat for development and testing
• Ethers.js for interacting with the Ethereum network

Testing

Run the test suite to ensure everything is working correctly:

npx hardhat test

Deployment

To deploy the initial version of the contract:

npx hardhat run scripts/deploy.js

To upgrade the contract:

npx hardhat run scripts/upgrade.js

Learn More

To learn more about Hardhat, OpenZeppelin, and UUPS upgradeable contracts, check out the following resources:

• Hardhat Documentation
• OpenZeppelin Upgrades Plugins
• UUPS Proxy Pattern

License

This project is licensed under the MIT License.