Interactions

zapIn

Collects user tokens (e.g., ETH and stETH), deposits them into the SPA pool to mint SPA tokens, then wraps those SPA tokens into wSPA and sends them to the user in a single transaction.

function zapIn(
    address spa,
    address wspa,
    address receiver,
    uint256 minMintAmount,
    uint256[] calldata amounts
) external returns (uint256);

Name	Type	Description
spa	address	Address of the SPA contract.
wspa	address	Address of the wrapped SPA token.
receiver	address	Address to receive wSPA tokens.
minMintAmount	uint256	Minimum SPA tokens to mint.
amounts	uint256[]	Array of input token amounts.

zapOut

Unwraps wSPA back into SPA, calls SPA’s redeem logic to retrieve the underlying tokens, and sends those to the user—all in one transaction.

function zapOut(
    address spa,
    address wspa,
    address receiver,
    uint256 wspaAmount,
    uint256[] calldata minAmountsOut,
    bool proportional
) external returns (uint256[] memory);

Name	Type	Description
spa	address	Address of the SPA contract.
wspa	address	Address of the wrapped SPA token.
receiver	address	Address to receive the output tokens.
wspaAmount	uint256	Amount of wSPA tokens to redeem.
minAmountsOut	uint256[]	Minimum amounts of tokens expected.
proportional	bool	Whether to redeem proportionally or not.

zapOutSingle

Unwrap wSPA tokens and redeem a single asset

function zapOutSingle(
    address spa,
    address wspa,
    address receiver,
    uint256 wspaAmount,
    uint256 tokenIndex,
    uint256 minAmountOut
) external returns (uint256 amount);

Parameters

Name	Type	Description
spa	address	Address of the SPA contract
wspa	address	Address of the wrapped SPA token contract
receiver	address	Address to receive the tokens
wspaAmount	uint256	Amount of wrapped SPA tokens to redeem
tokenIndex	uint256	Index of the token to receive
minAmountOut	uint256	Minimum amount of token to receive

Returns

Name	Type	Description
amount	uint256	Amount of token received