This project demonstrates how to implement a MetaTransaction using Hardhat, a popular development environment for building Ethereum applications. In this project, we use the Hardhat framework to deploy and test a smart contract that allows a user to send tokens to another address through a relayer.
Make sure you have the following installed:
- Node.js (v14.17.0 or higher)
- npm (v7.20.0 or higher)
- Clone the repository:
git clone https://github.com/Akkii4/MetaTransaction- Install the dependencies:
npm install- Compile the contracts:
npx hardhat compile- Run the tests:
npx hardhat testThe tests demonstrate how to deploy the MetaTokenSender and RandomToken contracts, mint tokens to a user address, and execute a transfer of tokens through a relayer using a MetaTransaction.
This contract represents a simple ERC20 token that is used for the purpose of demonstrating MetaTransactions. The contract allows the owner to mint new tokens and transfer tokens to other addresses.
This contract implements a MetaTransaction for transferring tokens. The contract has a transferWithNonce function that takes the following parameters:
from: the address of the user who wants to send tokensamount: the amount of tokens to sendto: the address of the recipienttoken: the address of the token contractnonce: a unique number that is incremented for each MetaTransactionsignature: the signature of the user on the MetaTransaction message hash
The transferWithNonce function is designed to be called by a relayer on behalf of the user. The function checks the signature of the user and transfers the tokens if the signature is valid.
Contributions are welcome! If you find any issues or would like to suggest improvements, please create an issue or submit a pull request.
This project is licensed under the MIT License.