Token Permit Checker

This project provides a utility to check the implementation of the permit function in ERC20 tokens on the Ethereum blockchain. It allows users to verify if a token contract supports gasless transactions by utilizing the permit function.

Features

• Check permit function implementation in ERC20 tokens.
• Support for EIP-1967 and OpenZeppelin proxies.
• Output results in a color-coded console table format.
• Efficient and parallel processing of multiple tokens.

Getting Started

Prerequisites

• Node.js
• Bun
• An Ethereum node or a service like Infura for JSON-RPC requests

Installation

1. Clone the repository:

git clone https://github.com/felinaprotocol/permit-checker.git

2. Navigate to the project directory:

cd permit-checker

3. Install the dependencies:

bun i

Usage

Update the combinedArray.json file with the list of tokens you want to check.

Run the script:

bun permit

## Documentation

• getImplementationAddress: Retrieves the implementation address for proxy contracts.
• hasPermitFunction: Checks if the contract has a permit function.
• checkContractForPermit: Verifies the permit function in a single token contract.
• checkTokensForPermit: Processes multiple tokens and outputs results.

Contributing

Contributions are what make the open-source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

## License

This project is licensed under the MIT License - see the LICENSE file for details.