> For the complete documentation index, see [llms.txt](https://docs.launch314.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.launch314.app/tokens/our-token-protocol.md).

# Compliance with Our Presale Platform's 314 Protocol Standard

Below is the code and explanation for meeting the 314 protocol standard of our presale platform:

{% hint style="info" %}
To add your custom token to our presale platform, you need to implement the following interface when creating the token.
{% endhint %}

**`IERC314` Interface**

```solidity
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.24;

interface IERC314 {
    function addLiquidity(
        uint256 unlockTime,
        uint256 tokenAmount
    ) external payable;

    function liquidityAdded() external view returns (bool);

    function getReserves()
        external
        view
        returns (uint256 ethReserve, uint256 tokenReserve);

    function getAmountOut(
        uint256 inputAmount,
        bool isBuy
    ) external view returns (uint256 outputAmount);
}
```

**Explanation:**

* `addLiquidity(uint256 unlockTime, uint256 tokenAmount) external payable`: Method to add liquidity, specifying the unlock time and token amount while receiving ETH.
* `liquidityAdded() external view returns (bool)`: Method to check if liquidity has been added, returns a boolean value.
* `getReserves() external view returns (uint256 ethReserve, uint256 tokenReserve)`: Method to get the current ETH and token reserves.
* `getAmountOut(uint256 inputAmount, bool isBuy) external view returns (uint256 outputAmount)`: Method to calculate the output amount when buying or selling tokens.

**`IERC314Events` Interface**

```solidity
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.24;

interface IERC314Events {
    event AddLiquidity(
        uint256 timeToUnlockLiquidity,
        uint256 ethValue,
        uint256 tokenValue
    );
    event RemoveLiquidity(uint256 ethValue, uint256 tokenValue);
    event ExtendLiquidityLock(uint256 timeToUnlockLiquidity);
    event Swap(
        address indexed sender,
        uint256 amountETHIn,
        uint256 amountTokenIn,
        uint256 amountETHOut,
        uint256 amountTokenOut
    );
}
```

**Explanation:**

* `event AddLiquidity(uint256 timeToUnlockLiquidity, uint256 ethValue, uint256 tokenValue)`: Event for adding liquidity, recording the unlock time, ETH value, and token value.
* `event RemoveLiquidity(uint256 ethValue, uint256 tokenValue)`: Event for removing liquidity, recording the ETH and token values.
* `event ExtendLiquidityLock(uint256 timeToUnlockLiquidity)`: Event for extending the liquidity lock time, recording the new unlock time.
* `event Swap(address indexed sender, uint256 amountETHIn, uint256 amountTokenIn, uint256 amountETHOut, uint256 amountTokenOut)`: Swap event, recording the sender, input, and output amounts of ETH and tokens.