# IStargateReceiver.sol

This interface should be implemented by contracts that receive a swap():

```javascript
// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.7.6;

interface IStargateReceiver {
    function sgReceive(
        uint16 _srcChainId,              // the remote chainId sending the tokens
        bytes memory _srcAddress,        // the remote Bridge address
        uint256 _nonce,                  
        address _token,                  // the token contract on the local chain
        uint256 amountLD,                // the qty of local _token contract tokens  
        bytes memory payload
    ) external;
}

```

This is a very powerful feature of Stargate, because with it you can perform additional logic upon receiving tokens on the destination chain! 

As an [example of something the LayerZero team built](https://stargateprotocol.gitbook.io/stargate/stargate-composability/stargatecomposed.sol) using `IStargateReceiver`, we used an AMM to swapExactTokensForTokens() using the Stargate swap()'ed USDC into native token on the destination chain.


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