# Router architecture

### MarginlyRouter

#### constructor

```solidity
constructor(struct AdapterInput[] _adapters) public
```

#### swapExactInput

```solidity
function swapExactInput(uint256 swapCalldata, address tokenIn, address tokenOut, uint256 amountIn, uint256 minAmountOut) external returns (uint256 amountOut)
```

swap with exact input

**Parameters**

| Name         | Type    | Description                            |
| ------------ | ------- | -------------------------------------- |
| swapCalldata | uint256 | calldata for multiple swaps            |
| tokenIn      | address | address of a token to swap on dex      |
| tokenOut     | address | address of a token to receive from dex |
| amountIn     | uint256 | exact amount of tokenIn to swap        |
| minAmountOut | uint256 | minimal amount of tokenOut to receive  |

#### swapExactOutput

```solidity
function swapExactOutput(uint256 swapCalldata, address tokenIn, address tokenOut, uint256 maxAmountIn, uint256 amountOut) external returns (uint256 amountIn)
```

swap with exact output

**Parameters**

| Name         | Type    | Description                            |
| ------------ | ------- | -------------------------------------- |
| swapCalldata | uint256 | calldata for multiple swaps            |
| tokenIn      | address | address of a token to swap on dex      |
| tokenOut     | address | address of a token to receive from dex |
| maxAmountIn  | uint256 | maximal amount of tokenIn to swap      |
| amountOut    | uint256 | exact amount of tokenOut to receive    |

**RouterActions**

#### addDexAdapters

```solidity
function addDexAdapters(struct AdapterInput[] _adapters) external
```

*add dex adapters to router*

**Parameters**

| Name       | Type                   | Description                                   |
| ---------- | ---------------------- | --------------------------------------------- |
| \_adapters | struct AdapterInput\[] | input to MarginlyRouter `addDexAdapters` call |

#### transferMarginlyRouterOwnership

```solidity
function transferMarginlyRouterOwnership(address to) external
```

*Set a new owner of a Marginly router contract. Allowed only for MarginlyPoolAdmin owner*

**Parameters**

| Name | Type    | Description                            |
| ---- | ------- | -------------------------------------- |
| to   | address | Address of a new Marginly router owner |

#### acceptMarginlyRouterOwnership

```solidity
function acceptMarginlyRouterOwnership() external
```

*Accepts Marginly router contract ownership*