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ReflexRouter

The core contract that orchestrates MEV capture and execution.

Constructor​

constructor()

Sets the deployer (msg.sender) as the contract owner.

Core Functions​

triggerBackrun​

function triggerBackrun(
    bytes32 triggerPoolId,
    uint112 swapAmountIn,
    bool token0In,
    address recipient,
    bytes32 configId
) external override gracefulNonReentrant
  returns (uint256 profit, address profitToken)

Executes a backrun arbitrage opportunity.

Parameters:

  • triggerPoolId - Unique identifier of the triggering pool (cast from pool address)
  • swapAmountIn - Amount of tokens for arbitrage swap (uint112 for gas optimization)
  • token0In - Whether to use token0 (true) or token1 (false) as input token
  • recipient - Address to receive arbitrage profit (used as dust recipient)
  • configId - Configuration ID for profit splitting (uses default if bytes32(0))

Returns:

  • profit - Amount of profit generated from the arbitrage
  • profitToken - Address of the token in which profit was generated

Events Emitted:

  • BackrunExecuted(triggerPoolId, swapAmountIn, token0In, profit, profitToken, recipient)

Example:

uint256 profit, address profitToken = reflexRouter.triggerBackrun(
    bytes32(uint256(uint160(poolAddress))),
    1000000, // 1 USDC (6 decimals)
    true,    // Use token0 as input
    msg.sender,
    bytes32(0) // Use default config
);

Events​

BackrunExecuted​

event BackrunExecuted(
    bytes32 indexed triggerPoolId,
    uint112 swapAmountIn,
    bool token0In,
    uint256 profit,
    address profitToken,
    address recipient
);

Emitted when a backrun is successfully executed.

Event Parameters:

  • triggerPoolId - Pool identifier where the backrun was triggered
  • swapAmountIn - Amount of tokens used in the arbitrage
  • token0In - Swap direction flag
  • profit - Amount of profit captured
  • profitToken - Token address in which profit was received
  • recipient - Address that received the profit