> For the complete documentation index, see [llms.txt](https://contracts.synapseprotocol.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contracts.synapseprotocol.com/bridge/interfaces/imetaswapdeposit.md).

# IMetaSwapDeposit

> IMetaSwapDeposit interface

Interface for the meta swap contract.

*implement this interface to develop a a factory-patterned ECDSA node management contract*\*

## Methods

### calculateSwap

```solidity
function calculateSwap(uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx) external view returns (uint256)
```

#### Parameters

| Name           | Type    | Description |
| -------------- | ------- | ----------- |
| tokenIndexFrom | uint8   | undefined   |
| tokenIndexTo   | uint8   | undefined   |
| dx             | uint256 | undefined   |

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | uint256 | undefined   |

### getToken

```solidity
function getToken(uint256 index) external view returns (contract IERC20)
```

#### Parameters

| Name  | Type    | Description |
| ----- | ------- | ----------- |
| index | uint256 | undefined   |

#### Returns

| Name | Type            | Description |
| ---- | --------------- | ----------- |
| \_0  | contract IERC20 | undefined   |

### swap

```solidity
function swap(uint8 tokenIndexFrom, uint8 tokenIndexTo, uint256 dx, uint256 minDy, uint256 deadline) external nonpayable returns (uint256)
```

#### Parameters

| Name           | Type    | Description |
| -------------- | ------- | ----------- |
| tokenIndexFrom | uint8   | undefined   |
| tokenIndexTo   | uint8   | undefined   |
| dx             | uint256 | undefined   |
| minDy          | uint256 | undefined   |
| deadline       | uint256 | undefined   |

#### Returns

| Name | Type    | Description |
| ---- | ------- | ----------- |
| \_0  | uint256 | undefined   |


---

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