On Ethereum

Swap stablecoins into USDV via EthereumLP

To integrate with EthereumLP, your application must:

• Complete color KYC

• Deploy contract, either:

  • Default, which will be deployed by the Operator, OR

  • Custom Minter Contract implementation interface and provide code hash and contract address to the Operator

• After above, the contract will be:

  • STBT whitelisted

  • Registered to MinterProxy

Default: Minter.sol

Minter can configure:

• Supported tokens (e.g. USDV).

• Blacklisted callers.

• Reward to user bps: The proportion, if any, of the LP contract reward to distribute to users. For example, if the reward bps from LP is 5bps, and you want to share 1 bps with users, the configuration would be 2000.

Interface for Custom Implementation

import {MessagingFee} from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";

interface IMinter {
    struct SwapParam {
        address fromToken;
        uint fromTokenAmount;
        uint64 minUSDVOut;
    }

    function swapToUSDV(
        address _sender,
        address _toSTBTLp,
        SwapParam calldata _param,
        address _usdvReceiver
    ) external returns (uint usdvOut);

    function swapToUSDVAndSend(
        address _sender,
        address _toSTBTLp,
        SwapParam calldata _param,
        bytes32 _usdvReceiver,
        uint32 _dstEid,
        bytes calldata _extraOptions,
        MessagingFee calldata _msgFee,
        address payable _refundAddress
    ) external payable returns (uint usdvOut);

    function getSwapToUSDVAmountOut(
        address _toSTBTLp,
        address _fromToken,
        uint _fromTokenAmount
    ) external view returns (uint usdvOut);

    function getSwapToUSDVAmountOutVerbose(
        address _toSTBTLp,
        address _fromToken,
        uint _fromTokenAmount
    ) external view returns (uint usdvOut, uint fee, uint reward);

    function getSupportedFromTokens(address _lp) external view returns (address[] memory tokens);

    function color() external view returns (uint32);

    function minterProxy() external view returns (address);
}