Address Details
contract

0xc44831f5f424A95465720bda94110AB0140Afc93

Contract Name
BlocklessTCO2eOracle
Creator
0x437c69–882e3a at 0xda15a7–0ee2dd
Balance
0 CELO ( )
Tokens
Fetching tokens...
Transactions
676 Transactions
Transfers
0 Transfers
Gas Used
24,116,571
Last Balance Update
14868164
This contract has been verified via Sourcify. View contract in Sourcify repository
Contract name:
BlocklessTCO2eOracle




Optimization enabled
false
Compiler version
v0.8.7+commit.e28d00a7




EVM Version
london




Verified at
2023-01-24T21:41:40.051482Z

contracts/BlocklessTCO2eOracle.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./BlsOracleInterface.sol";

contract BlocklessTCO2eOracle is BlsOracleInterface {
    string private _id;
    string private _description;
    uint8 private _decimals;

    int256 private _latestAnswer;
    uint256 private _latestTimestamp;
    uint256 private _latestRound;
    
    address public _owner;

    event NewBlsOraclePrice(
        int256 indexed current,
        uint256 indexed roundId,
        uint256 updatedAt
    );

    event NewBlsOracleQuery(
        address indexed _from,
        string indexed _id,
        uint timestamp
    );

    event NewOwner(address oldOwner, address newOwner);

    modifier onlyOwner() {
        require(msg.sender == _owner, "only admin may call");
        _;
    }

    constructor(
        string memory id,
        string memory description,
        uint8 decimals_
    ) {
        _owner = msg.sender;
        _id = id;
        _description = description;
        _decimals = decimals_;
    }

    function setOwner(address newOwner) external onlyOwner {
        address oldOwner = _owner;
        _owner = newOwner;

        emit NewOwner(oldOwner, newOwner);
    }

    function decimals() external view override returns (uint8) {
        return _decimals;
    }

    function latestAnswer() external view override returns (int256) {
        return _latestAnswer;
    }

    function latestTimestamp() external view override returns (uint256) {
        return _latestTimestamp;
    }

    function latestRound() external view override returns (uint256) {
        return _latestRound;
    }

    /**
     * Emit a Blockless Oracle Query here
     *
     */
    function update() external {
        require(msg.sender == _owner);
        
        emit NewBlsOracleQuery(msg.sender, _id, block.timestamp);
    }

    function __callback(int256 _price) external {
        require(msg.sender == _owner);

        _latestAnswer = _price;
        _latestRound = block.number;
        _latestTimestamp = block.timestamp;

        emit NewBlsOraclePrice(_price, _latestRound, _latestTimestamp);
    }
}

/contracts/BlsOracleInterface.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface BlsOracleInterface {
  function decimals() external view returns (uint8);

  function latestAnswer() external view returns (int256);

  function latestTimestamp() external view returns (uint256);

  function latestRound() external view returns (uint256);

  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 updatedAt);
}

Contract ABI

[{"type":"constructor","stateMutability":"nonpayable","inputs":[{"type":"string","name":"id","internalType":"string"},{"type":"string","name":"description","internalType":"string"},{"type":"uint8","name":"decimals_","internalType":"uint8"}]},{"type":"event","name":"AnswerUpdated","inputs":[{"type":"int256","name":"current","internalType":"int256","indexed":true},{"type":"uint256","name":"roundId","internalType":"uint256","indexed":true},{"type":"uint256","name":"updatedAt","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"NewBlsOraclePrice","inputs":[{"type":"int256","name":"current","internalType":"int256","indexed":true},{"type":"uint256","name":"roundId","internalType":"uint256","indexed":true},{"type":"uint256","name":"updatedAt","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"NewBlsOracleQuery","inputs":[{"type":"address","name":"_from","internalType":"address","indexed":true},{"type":"string","name":"_id","internalType":"string","indexed":true},{"type":"uint256","name":"timestamp","internalType":"uint256","indexed":false}],"anonymous":false},{"type":"event","name":"NewOwner","inputs":[{"type":"address","name":"oldOwner","internalType":"address","indexed":false},{"type":"address","name":"newOwner","internalType":"address","indexed":false}],"anonymous":false},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"__callback","inputs":[{"type":"int256","name":"_price","internalType":"int256"}]},{"type":"function","stateMutability":"view","outputs":[{"type":"address","name":"","internalType":"address"}],"name":"_owner","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint8","name":"","internalType":"uint8"}],"name":"decimals","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"int256","name":"","internalType":"int256"}],"name":"latestAnswer","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"latestRound","inputs":[]},{"type":"function","stateMutability":"view","outputs":[{"type":"uint256","name":"","internalType":"uint256"}],"name":"latestTimestamp","inputs":[]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"setOwner","inputs":[{"type":"address","name":"newOwner","internalType":"address"}]},{"type":"function","stateMutability":"nonpayable","outputs":[],"name":"update","inputs":[]}]

Deployed ByteCode

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