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Uniswap V4

AceSteps uses Uniswap V4 for decentralized song token trading.

Why Uniswap V4?​

  • Hooks: Custom logic during swaps
  • Singleton Design: All pools in one contract
  • Native ETH: Trade with ETH directly
  • donate(): Add value to pools without swapping

Pool Configuration​

const poolKey = {
  currency0: ETH_ADDRESS,
  currency1: songTokenAddress,
  fee: 10000, // 1%
  tickSpacing: 60,
  hooks: revenueHookAddress
};

Hooks Used​

afterSwap​

Tracks swap activity for analytics:

function afterSwap(...) external {
    emit SwapExecuted(tokenId, sender, amount);
}

Revenue distribution without swapping:

poolManager.donate(poolKey, ethAmount, 0, "");

Trading Interface​

// Buy tokens
await uniswapRouter.swap({
  poolKey,
  params: {
    zeroForOne: true, // ETH → Token
    amountSpecified: ethAmount
  }
});

// Sell tokens
await uniswapRouter.swap({
  poolKey,
  params: {
    zeroForOne: false, // Token → ETH
    amountSpecified: tokenAmount
  }
});