Midpoint Cross Testnet

Address

Contract

Source code ✓ verified

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

/// @title FxTradeRecorder
/// @notice Append-only, on-chain log of FX trade outcomes from the MIDX maker, so that BOTH fills and
///         rejects are visible on the testnet explorer as transactions with decoded event logs. A fill
///         moves nothing by itself, and a reject moves nothing at all, so without this each would leave
///         no on-chain trace — this contract turns each outcome into an event.
///
///         Records only: it does NOT custody or move any tokens. The maker's recorder key (owner) submits
///         one `recordFill` / `recordReject` per execution report. Testnet use only.
///
///         Numeric conventions: `priceE8` and `qtyE8` are fixed-point scaled by 1e8 (8 decimals), which is
///         lossless for FX prices (<=5 dp), JPY (3 dp), metals (2 dp) and the quantities used here.
///         `clOrdId` is the ASCII ClOrdID packed into bytes32 (spec caps ClOrdID at 24 chars). `side` is
///         1=buy, 2=sell (taker side). `reason` is the FIX OrdRejReason (1=unknown symbol, 6=duplicate,
///         99=other, which includes last-look).
contract FxTradeRecorder {
    address public owner;
    uint256 public fillCount;
    uint256 public rejectCount;

    event Fill(
        uint256 indexed seq,
        bytes32 indexed clOrdId,
        string symbol,
        uint8 side,
        uint256 qtyE8,
        uint256 priceE8,
        string currency,
        string execId,
        uint64 timestamp
    );

    event Reject(
        uint256 indexed seq,
        bytes32 indexed clOrdId,
        string symbol,
        uint8 side,
        uint256 qtyE8,
        uint8 reason,
        string text,
        uint64 timestamp
    );

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    modifier onlyOwner() {
        require(msg.sender == owner, "not owner");
        _;
    }

    constructor(address _owner) {
        owner = _owner;
        emit OwnershipTransferred(address(0), _owner);
    }

    function recordFill(
        bytes32 clOrdId,
        string calldata symbol,
        uint8 side,
        uint256 qtyE8,
        uint256 priceE8,
        string calldata currency,
        string calldata execId,
        uint64 timestamp
    ) external onlyOwner {
        emit Fill(++fillCount, clOrdId, symbol, side, qtyE8, priceE8, currency, execId, timestamp);
    }

    function recordReject(
        bytes32 clOrdId,
        string calldata symbol,
        uint8 side,
        uint256 qtyE8,
        uint8 reason,
        string calldata text,
        uint64 timestamp
    ) external onlyOwner {
        emit Reject(++rejectCount, clOrdId, symbol, side, qtyE8, reason, text, timestamp);
    }

    function transferOwnership(address newOwner) external onlyOwner {
        require(newOwner != address(0), "zero owner");
        emit OwnershipTransferred(owner, newOwner);
        owner = newOwner;
    }
}

ABI

[
 {
  "type": "constructor",
  "inputs": [
   {
    "name": "_owner",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "nonpayable"
 },
 {
  "name": "Fill",
  "type": "event",
  "inputs": [
   {
    "name": "seq",
    "type": "uint256",
    "indexed": true,
    "internalType": "uint256"
   },
   {
    "name": "clOrdId",
    "type": "bytes32",
    "indexed": true,
    "internalType": "bytes32"
   },
   {
    "name": "symbol",
    "type": "string",
    "indexed": false,
    "internalType": "string"
   },
   {
    "name": "side",
    "type": "uint8",
    "indexed": false,
    "internalType": "uint8"
   },
   {
    "name": "qtyE8",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "priceE8",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "currency",
    "type": "string",
    "indexed": false,
    "internalType": "string"
   },
   {
    "name": "execId",
    "type": "string",
    "indexed": false,
    "internalType": "string"
   },
   {
    "name": "timestamp",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   }
  ],
  "anonymous": false
 },
 {
  "name": "OwnershipTransferred",
  "type": "event",
  "inputs": [
   {
    "name": "previousOwner",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   },
   {
    "name": "newOwner",
    "type": "address",
    "indexed": true,
    "internalType": "address"
   }
  ],
  "anonymous": false
 },
 {
  "name": "Reject",
  "type": "event",
  "inputs": [
   {
    "name": "seq",
    "type": "uint256",
    "indexed": true,
    "internalType": "uint256"
   },
   {
    "name": "clOrdId",
    "type": "bytes32",
    "indexed": true,
    "internalType": "bytes32"
   },
   {
    "name": "symbol",
    "type": "string",
    "indexed": false,
    "internalType": "string"
   },
   {
    "name": "side",
    "type": "uint8",
    "indexed": false,
    "internalType": "uint8"
   },
   {
    "name": "qtyE8",
    "type": "uint256",
    "indexed": false,
    "internalType": "uint256"
   },
   {
    "name": "reason",
    "type": "uint8",
    "indexed": false,
    "internalType": "uint8"
   },
   {
    "name": "text",
    "type": "string",
    "indexed": false,
    "internalType": "string"
   },
   {
    "name": "timestamp",
    "type": "uint64",
    "indexed": false,
    "internalType": "uint64"
   }
  ],
  "anonymous": false
 },
 {
  "name": "fillCount",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "owner",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "address",
    "internalType": "address"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "recordFill",
  "type": "function",
  "inputs": [
   {
    "name": "clOrdId",
    "type": "bytes32",
    "internalType": "bytes32"
   },
   {
    "name": "symbol",
    "type": "string",
    "internalType": "string"
   },
   {
    "name": "side",
    "type": "uint8",
    "internalType": "uint8"
   },
   {
    "name": "qtyE8",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "priceE8",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "currency",
    "type": "string",
    "internalType": "string"
   },
   {
    "name": "execId",
    "type": "string",
    "internalType": "string"
   },
   {
    "name": "timestamp",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "recordReject",
  "type": "function",
  "inputs": [
   {
    "name": "clOrdId",
    "type": "bytes32",
    "internalType": "bytes32"
   },
   {
    "name": "symbol",
    "type": "string",
    "internalType": "string"
   },
   {
    "name": "side",
    "type": "uint8",
    "internalType": "uint8"
   },
   {
    "name": "qtyE8",
    "type": "uint256",
    "internalType": "uint256"
   },
   {
    "name": "reason",
    "type": "uint8",
    "internalType": "uint8"
   },
   {
    "name": "text",
    "type": "string",
    "internalType": "string"
   },
   {
    "name": "timestamp",
    "type": "uint64",
    "internalType": "uint64"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 },
 {
  "name": "rejectCount",
  "type": "function",
  "inputs": [],
  "outputs": [
   {
    "name": "",
    "type": "uint256",
    "internalType": "uint256"
   }
  ],
  "stateMutability": "view"
 },
 {
  "name": "transferOwnership",
  "type": "function",
  "inputs": [
   {
    "name": "newOwner",
    "type": "address",
    "internalType": "address"
   }
  ],
  "outputs": [],
  "stateMutability": "nonpayable"
 }
]

Transactions (12 indexed)