AmbGreeterReceiver

{{
  "language": "Solidity",
  "sources": {
    "Receiver2.sol": {
      "content": "// SPDX-License-Identifier: MIT\r
pragma solidity ^0.8.0;\r
\r
/// @notice Minimal AMB interface again (for messageSender)\r
interface IAMB {\r
    function messageSender() external view returns (address);\r
}\r
\r
/// @notice Deployed on Ethereum mainnet. Only accepts AMB calls from your sender.\r
contract AmbGreeterReceiver {\r
    address public immutable amb;         // Ethereum AMB\r
    address public immutable sender;      // Sender on Gnosis\r
    string public lastGreeting;\r
\r
    event GreetingReceived(address indexed from, string greeting);\r
\r
    constructor(address _amb, address _sender) {\r
        amb = _amb;\r
        sender = _sender;\r
    }\r
\r
    /// @dev This is called by the AMB on Ethereum. Do not call it directly unless you enjoy wasting gas.\r
    function receiveGreeting(string calldata greeting) external {\r
        require(msg.sender == amb, "not-amb");\r
        require(IAMB(amb).messageSender() == sender, "bad-sender");\r
        lastGreeting = greeting;\r
        emit GreetingReceived(sender, greeting);\r
    }\r
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": false,
      "runs": 200
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "remappings": []
  }
}}