Swap mainnet Ether to Meta Pool mpETH token bridged to Linea L2

This repository contains a Solidity smart contract designed to function as a proxy for staking Ethereum. The contract does not hold any balances or tokens itself; instead, it operates by receiving native Ethereum and staking it in the Meta Pool, a liquid staking protocol, then bridge the assets mpETH to the Linea Ethereum Layer 2. Users receive mpETH tokens in return, which are redeemable for Ethereum. The staked Ethereum is deployed into 32 ETH validator nodes.

Users need to claim.

Features

• Receive Functionality: Utilizes the receive() function in Solidity to accept native Ethereum.
• Staking: Automatically stakes received Ethereum in the Meta Pool.
• mpETH Tokens: Users receive mpETH tokens that can be redeemed for Ethereum.

Prerequisites

• Node.js (v14.x or later)
• npm (v6.x or later)
• Hardhat for running a local blockchain and testing.

Installation

To set up the project locally, follow these steps:

1. Clone the repository:

   git clone https://github.com/your-username/ethereum-staking-proxy.git
   cd ethereum-staking-proxy

Install dependencies:

bash Copy code npm install Compile the smart contracts:

bash Copy code npx hardhat compile Usage To deploy and interact with the contract, you can use Hardhat scripts or the Hardhat console:

Start a local blockchain:

bash Copy code npx hardhat node Deploy the contracts:

bash Copy code npx hardhat run scripts/deploy.js --network localhost Run tests:

bash Copy code npx hardhat test Contributing Contributions are welcome! Please follow these steps to contribute:

Fork the repository. Create a new branch: git checkout -b your-branch-name. Make changes and test. Submit a Pull Request with comprehensive description of changes. License Distributed under the MIT License. See LICENSE for more information.

Contact Your Name - Your Email

Project Link: https://github.com/your-username/ethereum-staking-proxy

Claim

/**
   * @notice Claims and delivers a cross-chain message.
   * @dev _feeRecipient Can be set to address(0) to receive as msg.sender.
   * @dev messageSender Is set temporarily when claiming and reset post.
   * @param _from The address of the original sender.
   * @param _to The address the message is intended for.
   * @param _fee The fee being paid for the message delivery.
   * @param _value The value to be transferred to the destination address.
   * @param _feeRecipient The recipient for the fee.
   * @param _calldata The calldata to pass to the recipient.
   * @param _nonce The unique auto generated message number used when sending the message.
   */
  function claimMessage(
    address _from,
    address _to,
    uint256 _fee,
    uint256 _value,
    address payable _feeRecipient,
    bytes calldata _calldata,
    uint256 _nonce
  ) external

Status 1 - call inboxL1L2MessageStatus

0 - No mssg 1 - message arrived 2 - message claimed

messageHash by-bridge: 0xe062ef59821418a74bfaa407a3ba480a9324020f67aa8c9b8e5e911f1bafe338 by-swap: 0x9861ceadb94d0357ffd2622899786e6976d9c5fe89072d62c1865a0f5ec3600c https://sepolia.lineascan.build/address/0x971e727e956690b9957be6d51Ec16E73AcAC83A7#readProxyContract

Claim 2 claimMessage(address _from,address _to,uint256 _fee,uint256 _value,address _feeRecipient,bytes _calldata,uint256 _nonce)

0	_from	address	0x5A0a48389BB0f12E5e017116c1105da97E129142
1	_to	address	0x93DcAdf238932e6e6a85852caC89cBd71798F463
2	_fee	uint256	0
3	_value	uint256	0
4	_feeRecipient	address	0x0000000000000000000000000000000000000000
5	_calldata	bytes	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
6	_nonce	uint256	1323

claim by-swap

_from: (eventLog: MessageSent _from): 0x5A0a48389BB0f12E5e017116c1105da97E129142

_to (eventLog: MessageSent _to): 0x93DcAdf238932e6e6a85852caC89cBd71798F463

(ALL ZERO) _fee uint256 0 _value uint256 0 _feeRecipient address 0x0000000000000000000000000000000000000000

_calldata (eventLog: MessageSent _calldata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

_nonce (eventLog MessageSent _nonce): 1324