Hook Contract

The Hook contract captures fees on every swap via Uniswap V4's hook system.

Addresses

Network	Address
Base	`0x5eE3602f499cFEAa4E13D27b4F7D2661906b28cC`
Ethereum	`0xEfd2F889eD9d7A2Bf6B6C9c2b20c5AEb6EBEe8Cc`

How It Works

The hook implements Uniswap V4's beforeSwap and afterSwap hooks to:

•Calculate the 6.9% fee on each swap

•Route 1.38% to the Factory (team)

•Route 5.52% to the LP position

Hook Permissions

solidity

function getHookPermissions() public pure returns (Hooks.Permissions memory) {
    return Hooks.Permissions({
        beforeInitialize: true,
        afterInitialize: false,
        beforeAddLiquidity: false,
        afterAddLiquidity: false,
        beforeRemoveLiquidity: false,
        afterRemoveLiquidity: false,
        beforeSwap: true,
        afterSwap: true,
        beforeDonate: false,
        afterDonate: false,
        beforeSwapReturnDelta: true,
        afterSwapReturnDelta: false,
        afterAddLiquidityReturnDelta: false,
        afterRemoveLiquidityReturnDelta: false
    });
}

Fee Calculation

solidity

uint256 constant TOTAL_FEE = 690; // 6.9% in basis points
uint256 constant TEAM_FEE = 138;  // 1.38%
uint256 constant LP_FEE = 552;    // 5.52%

function calculateFee(uint256 amount) internal pure returns (uint256) {
    return (amount * TOTAL_FEE) / 10000;
}