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Overview

FeeSwapper implements IFeeRouterV2 and converts fee tokens into the desired output token (typically USDC or ELTA) before forwarding to final destinations. Uses DEX integration for on-chain swaps.

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Key Functions

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Read

FunctionReturnsDescription
getSwapRoute(address tokenIn, address tokenOut)SwapRouteConfigured swap path
supportedTokens()address[]Tokens the swapper can handle
slippageTolerance()uint256Max slippage in basis points

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Write

FunctionAccessDescription
swap(address tokenIn, uint256 amountIn, address tokenOut, uint256 minAmountOut)FeeRouterExecute a swap
setSwapRoute(address tokenIn, address tokenOut, SwapRoute calldata route)GovernanceConfigure swap path
setSlippageTolerance(uint256 bps)GovernanceUpdate max slippage

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SwapRoute Struct

struct SwapRoute {
    address router;      // DEX router address
    bytes path;          // Encoded swap path
    uint256 maxSlippage; // Override per-route slippage
}

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Supported DEXes

The FeeSwapper integrates with Uniswap V3 on Base for token swaps. Swap routes are configurable via governance to add new paths or switch DEX backends.

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Events

EventEmitted When
Swapped(address tokenIn, address tokenOut, uint256 amountIn, uint256 amountOut)Swap executed
SwapRouteUpdated(address tokenIn, address tokenOut)Route reconfigured