> For the complete documentation index, see [llms.txt](https://docs.algebra.finance/algebra-integral-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.algebra.finance/algebra-integral-documentation/algebra-v1-technical-reference/contracts/api-reference-v2.0/v2.0-periphery/iperipherypayments.md).

# IPeripheryPayments

Periphery Payments

Functions to ease deposits and withdrawals of NativeToken

*Developer note: Credit to Uniswap Labs under GPL-2.0-or-later license: <https://github.com/Uniswap/v3-periphery>*

## Functions

### unwrapWNativeToken

`function unwrapWNativeToken(uint256 amountMinimum, address recipient) external payable` payable external

Unwraps the contract's WNativeToken balance and sends it to recipient as NativeToken. *Developer note: The amountMinimum parameter prevents malicious contracts from stealing WNativeToken from users.*

| Name          | Type    | Description                                  |
| ------------- | ------- | -------------------------------------------- |
| amountMinimum | uint256 | The minimum amount of WNativeToken to unwrap |
| recipient     | address | The address receiving NativeToken            |

### refundNativeToken

`function refundNativeToken() external payable` payable external

Refunds any NativeToken balance held by this contract to the \`msg.sender\` *Developer note: Useful for bundling with mint or increase liquidity that uses ether, or exact output swaps that use ether for the input amount*

### sweepToken

`function sweepToken(address token, uint256 amountMinimum, address recipient) external payable` payable external

Transfers the full amount of a token held by this contract to recipient *Developer note: The amountMinimum parameter prevents malicious contracts from stealing the token from users*

| Name          | Type    | Description                                                                  |
| ------------- | ------- | ---------------------------------------------------------------------------- |
| token         | address | The contract address of the token which will be transferred to \`recipient\` |
| amountMinimum | uint256 | The minimum amount of token required for a transfer                          |
| recipient     | address | The destination address of the token                                         |


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