> For the complete documentation index, see [llms.txt](https://instantmiso.gitbook.io/miso/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://instantmiso.gitbook.io/miso/dev/pool-liquidity-smart-contract/liquidity-zap-contract.md).

# Liquidity ZAP Contract

### Address

### Init Function

```
function initUniswapZAP(
    address token, 
    address WETH, 
    address tokenWethPair
) 
    public
```

| Parameter     | Description                        |
| ------------- | ---------------------------------- |
| token         | Address of the token from LP pair. |
| WETH          | Address of WETH.                   |
| tokenWethPair | Address of the LP pair.            |

Initializes LP addresses.

### ZAP and unZAP Functions

```
function zapETH() external payable returns (uint256 liquidity)
```

Adds liquidity taking only ETH tokens.

```
function zapTokens(uint amount) external returns (uint256 liquidity)
```

Adds liquidity taking only Tokens.

```
function unzap() external returns  (uint amountToken, uint amountETH)
```

Unzaps LP to respective Token and ETH amounts.

```
function unzapToETH() external returns (uint amount)
```

Unzaps LP to ETH only.

```
function unzapToTokens() external returns (uint amount)
```

Unzaps LP to Token only.

### Read-Only Functions

```
function getLPTokenPerEthUnit(uint ethAmt) public view  returns (uint liquidity)
```

Returns how many LP tokens is user able to get with given ETH amount.