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Pair Factory

The PairFactory contract creates liquidity pools and also communicates the DAO treasury address to the pools.

The PairFactory source can be found on the V1 Protocol GitHub repository here.

The PairFactory currently allows the creation of 2 liquidity pool types; ERC721/ERC20 and ERC721/Ether pairs. The contract also has the ability to add new pool designs in future.

View Functions​

// Returns a pool address from a asset pair and pool type.
function getPair(uint256 templateId, address asset0, address asset1) public view returns (address poolAddress)

// Treasury address for fees 
function feeTo() public view returns (address)

// Get a contract of a pool type
function pairTemplate(uint256 id) public view returns (address) {

Pair Creation​

asset0 and asset1 are ordered by the expected token type of the pool. Always check how a pair type is implemented and make sure to pass use the expect asset types for both parameters.

ERC721Pool.sol#L52 Here the ERC721/ERC20 pool expects asset0 to be ERC20 and asset1 to be ERC721.

function createPair(
  uint256 templateId,
  address asset0,
  address asset1
) public returns (address)

Management for DAO​

The owner of the PairFactory should be the AssetMergeDAO. This owner has the ability to change the feeTo address and add new pair templates.

function setFeeTo(address newAddress)

function addPairTemplate(uint256 id, address templateAddress)