# V3Estimator

해당 컨트랙트는 V3 스왑 금액을 추정합니다.

## Code

Github Link: (Will be updated after official launch)<br>

## Address

* Cypress : [0xBAf0Bc5cEDeaF8DbE639Ad7444cB4758Ea6710c3](https://klaytnscope.com/account/0xBAf0Bc5cEDeaF8DbE639Ad7444cB4758Ea6710c3?tabId=internalTx)

## Events, Read-Only Functions, and State-Changing Functions

{% tabs %}
{% tab title="Read-Only Functions" %}

## Read-Only Functions

**estimatePos**

```solidity
function estimatePos(
    struct IUniswapV3Pool pool, 
    address token, 
    uint256 amountIn
) external view returns (
    uint256 amountOut, 
    uint160 sqrtPriceX96After
)
```

**Parameters:**

<table><thead><tr><th width="134.66666666666666">Name</th><th width="178">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>pool</code></td><td><code>contract IUniswapV3Pool</code></td><td>풀 주소</td></tr><tr><td><code>token</code></td><td>address</td><td>교환되는 토큰</td></tr><tr><td><code>amountIn</code></td><td>uint256</td><td>원하는 투입량</td></tr></tbody></table>

[**​**](https://docs.uniswap.org/contracts/v3/reference/core/UniswapV3Pool#parameters)**Return Values:**

<table><thead><tr><th width="219.66666666666666">Name</th><th width="101">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>amountOut</code></td><td>uint256</td><td>받을 토큰의 양</td></tr><tr><td><code>sqrtPriceX96After</code></td><td>uint160</td><td>스왑 후 sqrt 가격</td></tr></tbody></table>

**estimateNeg**

```solidity
function estimateNeg(
    contract IUniswapV3Pool pool, 
    address token, 
    uint256 amountOut
) external view returns (
    uint256 amountIn, 
    uint160 sqrtPriceX96After
)
```

**Parameters:**

<table><thead><tr><th width="145.66666666666666">Name</th><th width="178">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>pool</code></td><td><code>contract IUniswapV3Pool</code></td><td>풀 주소</td></tr><tr><td><code>token</code></td><td>address</td><td>교환되어 받을토큰</td></tr><tr><td><code>amountOut</code></td><td>uint256</td><td>원하는 출력량</td></tr></tbody></table>

[**​**](https://docs.uniswap.org/contracts/v3/reference/core/UniswapV3Pool#parameters)**Return Values:**

<table><thead><tr><th width="219.66666666666666">Name</th><th width="101">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>amountIn</code></td><td>uint256</td><td><code>amountOut</code>을 받기 위해 스왑에 대한 입력으로 필요한 금액</td></tr><tr><td><code>sqrtPriceX96After</code></td><td>uint160</td><td>스왑 후 sqrt 가격</td></tr></tbody></table>

**estimate**

```solidity
function estimate(
    contract IUniswapV3Pool pool,
    bool zeroForOne,
    int256 amountSpecified
) public view returns (int256 amount0, int256 amount1, uint160 sqrtPriceX96After) {
```

**Parameters:**

<table><thead><tr><th width="202.66666666666666">Name</th><th width="178">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>pool</code></td><td><code>contract IUniswapV3Pool</code></td><td>풀 주소</td></tr><tr><td><code>zeroForOne</code></td><td>bool</td><td>스왑 방향이 0 -> 1인지?</td></tr><tr><td><code>amountSpecified</code></td><td>int256</td><td>지정된 양의 토큰</td></tr></tbody></table>

[**​**](https://docs.uniswap.org/contracts/v3/reference/core/UniswapV3Pool#parameters)**Return Values:**

<table><thead><tr><th width="219.66666666666666">Name</th><th width="101">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>amount0</code></td><td>int256</td><td>변경된 token0 수량</td></tr><tr><td><code>amount1</code></td><td>int256</td><td>변경된 token1 수량</td></tr><tr><td><code>sqrtPriceX96After</code></td><td>uint160</td><td>스왑 후 sqrt 가격</td></tr></tbody></table>

[**​**](https://docs.uniswap.org/contracts/v3/reference/core/UniswapV3Pool#parameters)
{% endtab %}
{% endtabs %}