UniswapV3Factory

Deploys Uniswap V3 pools and manages ownership and control over pool protocol fees

owner

address owner

Returns the current owner of the factory

Can be changed by the current owner via setOwner

Name	Type	Description

feeAmountTickSpacing

mapping(uint24 => int24) feeAmountTickSpacing

Returns the tick spacing for a given fee amount, if enabled, or 0 if not enabled

A fee amount can never be removed, so this value should be hard coded or cached in the calling context

Name	Type	Description

Name	Type	Description

getPool

mapping(address => mapping(address => mapping(uint24 => address))) getPool

Returns the pool address for a given pair of tokens and a fee, or address 0 if it does not exist

tokenA and tokenB may be passed in either token0/token1 or token1/token0 order

Name	Type	Description

Name	Type	Description

constructor

constructor() public

createPool

function createPool(address tokenA, address tokenB, uint24 fee) external returns (address pool)

Creates a pool for the given two tokens and fee

tokenA and tokenB may be passed in either order: token0/token1 or token1/token0. tickSpacing is retrieved from the fee. The call will revert if the pool already exists, the fee is invalid, or the token arguments are invalid.

Name	Type	Description
tokenA	address	One of the two tokens in the desired pool
tokenB	address	The other of the two tokens in the desired pool
fee	uint24	The desired fee for the pool

Name	Type	Description
pool	address	The address of the newly created pool

setOwner

function setOwner(address _owner) external

Updates the owner of the factory

Must be called by the current owner

Name	Type	Description
_owner	address	The new owner of the factory

enableFeeAmount

function enableFeeAmount(uint24 fee, int24 tickSpacing) public

Enables a fee amount with the given tickSpacing

Fee amounts may never be removed once enabled

Name	Type	Description
fee	uint24	The fee amount to enable, denominated in hundredths of a bip (i.e. 1e-6)
tickSpacing	int24	The spacing between ticks to be enforced for all pools created with the given fee amount