V3SwapRouter

Router for stateless execution of swaps against PancakeSwap V3

Solidity API

SwapCallbackData

struct SwapCallbackData {
  bytes path;
  address payer;
}

pancakeV3SwapCallback

function pancakeV3SwapCallback(int256 amount0Delta, int256 amount1Delta, bytes _data) external

Called to msg.sender after executing a swap via IPancakeV3Pool#swap.

In the implementation you must pay the pool tokens owed for the swap. The caller of this method must be checked to be a PancakeV3Pool deployed by the canonical PancakeV3Factory. amount0Delta and amount1Delta can both be 0 if no tokens were swapped.

Parameters

exactInputSingle

function exactInputSingle(struct IV3SwapRouter.ExactInputSingleParams params) external payable returns (uint256 amountOut)

Swaps amountIn of one token for as much as possible of another token

Setting amountIn to 0 will cause the contract to look up its own balance, and swap the entire amount, enabling contracts to send tokens before calling this function.

Parameters

Return Values

exactInput

function exactInput(struct IV3SwapRouter.ExactInputParams params) external payable returns (uint256 amountOut)

Swaps amountIn of one token for as much as possible of another along the specified path

Setting amountIn to 0 will cause the contract to look up its own balance, and swap the entire amount, enabling contracts to send tokens before calling this function.

Parameters

Return Values

exactOutputSingle

function exactOutputSingle(struct IV3SwapRouter.ExactOutputSingleParams params) external payable returns (uint256 amountIn)

Swaps as little as possible of one token for amountOut of another token that may remain in the router after the swap.

Parameters

Return Values

exactOutput

function exactOutput(struct IV3SwapRouter.ExactOutputParams params) external payable returns (uint256 amountIn)

Swaps as little as possible of one token for amountOut of another along the specified path (reversed) that may remain in the router after the swap.

Parameters

Return Values

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