Withdrawal Queue — Staking Kit

Contract Details

Categorycontracts

Files12

Price$9.99

Tech Stack

Solidity ^0.8.24 OpenZeppelin v5 Foundry

Chains

Ethereum Arbitrum Base

Description

Fair withdrawal queue contract with configurable cooldown periods. FIFO ordering ensures fairness, batch processing reduces gas costs, and partial fills handle liquidity constraints gracefully.

Features

✓ FIFO queue ordering for fairness
✓ Configurable cooldown periods
✓ Batch processing for gas efficiency
✓ Partial fill support
✓ Minimum/maximum withdrawal limits
✓ Emergency pause mechanism
✓ Queue position tracking (NFT receipt)
✓ Full Foundry test suite

withdrawal-queue.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @title Withdrawal Queue
/// @notice Fair withdrawal queue contract with configurable cooldown periods.
contract WithdrawalQueue {
    address public immutable owner;
    uint256 public constant VERSION = 1;

    event Initialized(address indexed deployer);

    constructor() {
        owner = msg.sender;
        emit Initialized(msg.sender);
    }

    // ... full implementation in purchased package
}