> ## 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.

# IQuoter

Supports quoting the calculated amounts from exact input or exact output swaps

These functions are not marked view because they rely on calling non-view functions and reverting
to compute the result. They are also not gas efficient and should not be called on-chain.

## Functions

### quoteExactInput

```solidity theme={null}
  function quoteExactInput(
    bytes path,
    uint256 amountIn
  ) external returns (uint256 amountOut)
```

Returns the amount out received for a given exact input swap without executing the swap

#### Parameters:

| Name       | Type    | Description                                                 |
| :--------- | :------ | :---------------------------------------------------------- |
| `path`     | bytes   | The path of the swap, i.e. each token pair and the pool fee |
| `amountIn` | uint256 | The amount of the first token to swap                       |

#### Return Values:

| Name        | Type    | Description                                         |
| :---------- | :------ | :-------------------------------------------------- |
| `amountOut` | uint256 | The amount of the last token that would be received |

### quoteExactInputSingle

```solidity theme={null}
  function quoteExactInputSingle(
    address tokenIn,
    address tokenOut,
    int24 tickSpacing,
    uint256 amountIn,
    uint160 sqrtPriceLimitX96
  ) external returns (uint256 amountOut)
```

Returns the amount out received for a given exact input but for a swap of a single pool

#### Parameters:

| Name                | Type    | Description                                                     |
| :------------------ | :------ | :-------------------------------------------------------------- |
| `tokenIn`           | address | The token being swapped in                                      |
| `tokenOut`          | address | The token being swapped out                                     |
| `tickSpacing`       | int24   | The tick spacing of the pool                                    |
| `amountIn`          | uint256 | The desired input amount                                        |
| `sqrtPriceLimitX96` | uint160 | The price limit of the pool that cannot be exceeded by the swap |

#### Return Values:

| Name        | Type    | Description                                     |
| :---------- | :------ | :---------------------------------------------- |
| `amountOut` | uint256 | The amount of `tokenOut` that would be received |

### quoteExactOutput

```solidity theme={null}
  function quoteExactOutput(
    bytes path,
    uint256 amountOut
  ) external returns (uint256 amountIn)
```

Returns the amount in required for a given exact output swap without executing the swap

#### Parameters:

| Name        | Type    | Description                                                 |
| :---------- | :------ | :---------------------------------------------------------- |
| `path`      | bytes   | The path of the swap, i.e. each token pair and the pool fee |
| `amountOut` | uint256 | The amount of the last token to receive                     |

#### Return Values:

| Name       | Type    | Description                                   |
| :--------- | :------ | :-------------------------------------------- |
| `amountIn` | uint256 | The amount of first token required to be paid |

### quoteExactOutputSingle

```solidity theme={null}
  function quoteExactOutputSingle(
    address tokenIn,
    address tokenOut,
    int24 tickSpacing,
    uint256 amountOut,
    uint160 sqrtPriceLimitX96
  ) external returns (uint256 amountIn)
```

Returns the amount in required to receive the given exact output amount but for a swap of a single pool

#### Parameters:

| Name                | Type    | Description                                                     |
| :------------------ | :------ | :-------------------------------------------------------------- |
| `tokenIn`           | address | The token being swapped in                                      |
| `tokenOut`          | address | The token being swapped out                                     |
| `tickSpacing`       | int24   | The tick spacing of the pool                                    |
| `amountOut`         | uint256 | The desired output amount                                       |
| `sqrtPriceLimitX96` | uint160 | The price limit of the pool that cannot be exceeded by the swap |

#### Return Values:

| Name       | Type    | Description                                                                   |
| :--------- | :------ | :---------------------------------------------------------------------------- |
| `amountIn` | uint256 | The amount required as the input for the swap in order to receive `amountOut` |