Custom Fee Uniswap V4 Hook

Custom fee hook for Uniswap V4 pool to charge dynamic fee in the range of configured minFee% and maxFee% according to the current poolPrice and referencePrice.

referencePrice => True exchange rate of ezETH from the rateProvider

poolPrice => price of ezETH in the Uniswap Pool.

• If pool is moving towards peg price. Then users will be charged minFee% configured.
• If pool is depegged by depeg% then users will be charged the fee as -

  Fee => |  minFee  | if depeg% < minFee%
         |  maxFee  | if depeg% > maxFee%
         |  depeg%  | if minFee% <= depeg% <= maxFee%

Usage

Build

$ forge build

Test

$ forge test

Deploy