Quoter

Provides quotes for swaps Allows getting the expected amount out or amount in for a given swap without executing the swap Developer note: These functions are not gas efficient and should not be called on chain. Instead, optimistically execute the swap and check the amounts in the callback.

Functions

constructor

PeripheryImmutableState

constructor(address,address,address) public

Name
Type
Description

_factory

address

_WNativeToken

address

_poolDeployer

address

algebraSwapCallback

algebraSwapCallback(int256,int256,bytes) view external

Called to `msg.sender` after executing a swap via IAlgebraPool#swap.

Name
Type
Description

amount0Delta

int256

The amount of token0 that was sent (negative) or must be received (positive) by the pool by the end of the swap. If positive, the callback must send that amount of token0 to the pool.

amount1Delta

int256

The amount of token1 that was sent (negative) or must be received (positive) by the pool by the end of the swap. If positive, the callback must send that amount of token1 to the pool.

path

bytes

quoteExactInputSingle

quoteExactInputSingle(address,address,uint256,uint160) public

Returns the amount out received for a given exact input but for a swap of a single pool

Name
Type
Description

tokenIn

address

The token being swapped in

tokenOut

address

The token being swapped out

amountIn

uint256

The desired input amount

limitSqrtPrice

uint160

The price limit of the pool that cannot be exceeded by the swap

Returns:

Name
Type
Description

amountOut

uint256

fee

uint16

quoteExactInput

quoteExactInput(bytes,uint256) external

Returns the amount out received for a given exact input swap without executing the swap

Name
Type
Description

path

bytes

The path of the swap, i.e. each token pair

amountIn

uint256

The amount of the first token to swap

Returns:

Name
Type
Description

amountOut

uint256

fees

uint16[]

quoteExactOutputSingle

quoteExactOutputSingle(address,address,uint256,uint160) public

Returns the amount in required to receive the given exact output amount but for a swap of a single pool

Name
Type
Description

tokenIn

address

The token being swapped in

tokenOut

address

The token being swapped out

amountOut

uint256

The desired output amount

limitSqrtPrice

uint160

The price limit of the pool that cannot be exceeded by the swap

Returns:

Name
Type
Description

amountIn

uint256

fee

uint16

quoteExactOutput

quoteExactOutput(bytes,uint256) external

Returns the amount in required for a given exact output swap without executing the swap

Name
Type
Description

path

bytes

The path of the swap, i.e. each token pair. Path must be provided in reverse order

amountOut

uint256

The amount of the last token to receive

Returns:

Name
Type
Description

amountIn

uint256

fees

uint16[]