> For the complete documentation index, see [llms.txt](https://docs.mav.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mav.xyz/technical-reference/maverick-v2/v2-contracts/maverick-v2-supplemental-contracts/routerbase/exactoutputslim.md).

# ExactOutputSlim

**Inherits:** [Payment](/technical-reference/maverick-v2/v2-contracts/maverick-v2-supplemental-contracts/paymentbase/payment.md), [IExactOutputSlim](/technical-reference/maverick-v2/v2-contracts/maverick-v2-supplemental-contracts/routerbase/iexactoutputslim.md)

### Functions <a href="#functions" id="functions"></a>

#### maverickV2SwapCallback <a href="#maverickv2swapcallback" id="maverickv2swapcallback"></a>

Callback function called by Maverick V2 pools when swapping tokens.

```solidity
function maverickV2SwapCallback(IERC20 tokenIn, uint256 amountToPay, uint256, bytes calldata data) external virtual;
```

**Parameters**

| Name          | Type      | Description        |
| ------------- | --------- | ------------------ |
| `tokenIn`     | `IERC20`  | The input token.   |
| `amountToPay` | `uint256` | The amount to pay. |
| `<none>`      | `uint256` |                    |
| `data`        | `bytes`   | Additional data.   |

#### exactOutputSingleMinimal <a href="#exactoutputsingleminimal" id="exactoutputsingleminimal"></a>

Perform a swap with an exact output amount.

```solidity
function exactOutputSingleMinimal(
    address recipient,
    IMaverickV2Pool pool,
    bool tokenAIn,
    uint256 amountOut,
    int32 tickLimit
) public payable returns (uint256 amountIn, uint256 amountOut_);
```

**Parameters**

| Name        | Type              | Description                              |
| ----------- | ----------------- | ---------------------------------------- |
| `recipient` | `address`         | The recipient of the swapped tokens.     |
| `pool`      | `IMaverickV2Pool` | The MaverickV2 pool to use for the swap. |
| `tokenAIn`  | `bool`            | Whether token A is the input token.      |
| `amountOut` | `uint256`         | The exact output amount.                 |
| `tickLimit` | `int32`           | The tick limit for the swap.             |

**Returns**

| Name         | Type      | Description                                            |
| ------------ | --------- | ------------------------------------------------------ |
| `amountIn`   | `uint256` | The input amount required to achieve the exact output. |
| `amountOut_` | `uint256` | The actual output amount received from the swap.       |

#### \_exactOutputSingleWithTickCheck <a href="#exactoutputsinglewithtickcheck" id="exactoutputsinglewithtickcheck"></a>

Perform an exact output single swap with tick limit validation.

```solidity
function _exactOutputSingleWithTickCheck(
    IMaverickV2Pool pool,
    address recipient,
    uint256 amountOut,
    bool tokenAIn,
    int32 tickLimit
) internal returns (uint256 amountIn, uint256 _amountOut);
```

**Parameters**

| Name        | Type              | Description                              |
| ----------- | ----------------- | ---------------------------------------- |
| `pool`      | `IMaverickV2Pool` | The MaverickV2 pool to use for the swap. |
| `recipient` | `address`         | The recipient of the swapped tokens.     |
| `amountOut` | `uint256`         | The exact output amount.                 |
| `tokenAIn`  | `bool`            | Whether token A is the input token.      |
| `tickLimit` | `int32`           | The tick limit for the swap.             |

**Returns**

| Name         | Type      | Description                                            |
| ------------ | --------- | ------------------------------------------------------ |
| `amountIn`   | `uint256` | The input amount required to achieve the exact output. |
| `_amountOut` | `uint256` | The actual output amount received from the swap.       |


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