PoolCreationHelper

0x55dccE8165C88aAd4403a15A9cE3A8E244657dD2 | ABI JSON

Helper contract to create and join pools in a single transaction. Supports joining WBERA pools with BERA. Non-standard ERC20 tokens and double-entrypoint tokens are not supported.

Note: This contract must be approved as a relayer by the pool creator inside the vault contract to join pools (using setRelayerApproval).

Functions

createAndJoinWeightedPool

Creates a weighted pool and joins it in a single transaction. Allows users to create a WBERA weighted pool and join it with either WBERA or BERA.

function createAndJoinWeightedPool(
    string memory name,
    string memory symbol,
    IERC20[] memory createPoolTokens,
    IERC20[] memory joinPoolTokens,
    uint256[] memory normalizedWeights,
    IRateProvider[] memory rateProviders,
    uint256 swapFeePercentage,
    uint256[] memory amountsIn,
    address owner,
    bytes32 salt
) external payable returns (address pool)

Parameters

Name	Type	Description
name	string	Name of the pool
symbol	string	Symbol of the pool
createPoolTokens	IERC20[]	Tokens to create the pool with
joinPoolTokens	IERC20[]	Tokens to join the pool with
normalizedWeights	uint256[]	Normalized weights for the pool
rateProviders	IRateProvider[]	Rate providers for the pool
swapFeePercentage	uint256	Swap fee percentage for the pool
amountsIn	uint256[]	Amounts to join the pool with
owner	address	Owner of the pool
salt	bytes32	Unique salt for deterministic pool address creation

Pools with BERA

Pools created with WBERA should use the WBERA token address in the createPoolTokens array

joinPoolTokens should use address(0) at the WBERA index if joining a pool with BERA (with msg.value equal to the WBERA amount in the amountsIn array)

createAndJoinStablePool

Creates a stable pool and joins it in a single transaction. Allows users to create a WBERA stable pool and join it with either WBERA or BERA.

function createAndJoinStablePool(
    string memory name,
    string memory symbol,
    IERC20[] memory createPoolTokens,
    uint256 amplificationParameter,
    IRateProvider[] memory rateProviders,
    uint256[] memory tokenRateCacheDurations,
    bool exemptFromYieldProtocolFeeFlag,
    uint256 swapFeePercentage,
    uint256[] memory amountsIn,
    address owner,
    bytes32 salt,
    bool joinWBERAPoolWithBERA
) external payable returns (address pool)

Parameters

Name	Type	Description
name	string	Name of the pool
symbol	string	Symbol of the pool
createPoolTokens	IERC20[]	Tokens to create the pool with
amplificationParameter	uint256	Amplification parameter for the pool
rateProviders	IRateProvider[]	Rate providers for the pool
tokenRateCacheDurations	uint256[]	Cache durations for the pool tokens
exemptFromYieldProtocolFeeFlag	bool	If true, exempt from yield protocol fee
swapFeePercentage	uint256	Swap fee percentage for the pool
amountsIn	uint256[]	Amounts to join the pool with
owner	address	Owner of the pool
salt	bytes32	Unique salt for deterministic pool address creation
joinWBERAPoolWithBERA	bool	If true, join the WBERA pool with BERA (msg.value corresponds to WBERA in amountsIn)

Events

WeightedPoolCreated

Emitted when a weighted pool is created.

event WeightedPoolCreated(string name, string symbol, address indexed pool)

ComposableStablePoolCreated

Emitted when a composable stable pool is created.

event ComposableStablePoolCreated(string name, string symbol, address indexed pool)