> ## Documentation Index
> Fetch the complete documentation index at: https://tech.ramses.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# ISwapRouter

Functions for swapping tokens via Ramses V3

## Parameter Structs

### ExactInputSingleParams

```solidity theme={null}
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        int24 tickSpacing;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }
```

### ExactInputParams

```solidity theme={null}
   struct ExactInputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
    }
```

### ExactOutputSingleParams

```solidity theme={null}
    struct ExactOutputSingleParams {
        address tokenIn;
        address tokenOut;
        int24 tickSpacing;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
        uint160 sqrtPriceLimitX96;
    }
```

### ExactOutputParams

```solidity theme={null}
    struct ExactOutputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountOut;
        uint256 amountInMaximum;
    }
```

## Functions

### exactInputSingle

```solidity theme={null}
  function exactInputSingle(
    struct ISwapRouter.ExactInputSingleParams params
  ) external returns (uint256 amountOut)
```

Swaps `amountIn` of one token for as much as possible of another token

#### Parameters:

| Name     | Type                                      | Description                                                                            |
| :------- | :---------------------------------------- | :------------------------------------------------------------------------------------- |
| `params` | struct ISwapRouter.ExactInputSingleParams | The parameters necessary for the swap, encoded as `ExactInputSingleParams` in calldata |

#### Return Values:

| Name        | Type                                      | Description                      |
| :---------- | :---------------------------------------- | :------------------------------- |
| `amountOut` | struct ISwapRouter.ExactInputSingleParams | The amount of the received token |

### exactInput

```solidity theme={null}
  function exactInput(
    struct ISwapRouter.ExactInputParams params
  ) external returns (uint256 amountOut)
```

Swaps `amountIn` of one token for as much as possible of another along the specified path

#### Parameters:

| Name     | Type                                | Description                                                                                |
| :------- | :---------------------------------- | :----------------------------------------------------------------------------------------- |
| `params` | struct ISwapRouter.ExactInputParams | The parameters necessary for the multi-hop swap, encoded as `ExactInputParams` in calldata |

#### Return Values:

| Name        | Type                                | Description                      |
| :---------- | :---------------------------------- | :------------------------------- |
| `amountOut` | struct ISwapRouter.ExactInputParams | The amount of the received token |

### exactOutputSingle

```solidity theme={null}
  function exactOutputSingle(
    struct ISwapRouter.ExactOutputSingleParams params
  ) external returns (uint256 amountIn)
```

Swaps as little as possible of one token for `amountOut` of another token

#### Parameters:

| Name     | Type                                       | Description                                                                             |
| :------- | :----------------------------------------- | :-------------------------------------------------------------------------------------- |
| `params` | struct ISwapRouter.ExactOutputSingleParams | The parameters necessary for the swap, encoded as `ExactOutputSingleParams` in calldata |

#### Return Values:

| Name       | Type                                       | Description                   |
| :--------- | :----------------------------------------- | :---------------------------- |
| `amountIn` | struct ISwapRouter.ExactOutputSingleParams | The amount of the input token |

### exactOutput

```solidity theme={null}
  function exactOutput(
    struct ISwapRouter.ExactOutputParams params
  ) external returns (uint256 amountIn)
```

Swaps as little as possible of one token for `amountOut` of another along the specified path (reversed)

#### Parameters:

| Name     | Type                                 | Description                                                                                 |
| :------- | :----------------------------------- | :------------------------------------------------------------------------------------------ |
| `params` | struct ISwapRouter.ExactOutputParams | The parameters necessary for the multi-hop swap, encoded as `ExactOutputParams` in calldata |

#### Return Values:

| Name       | Type                                 | Description                   |
| :--------- | :----------------------------------- | :---------------------------- |
| `amountIn` | struct ISwapRouter.ExactOutputParams | The amount of the input token |