Chainlink 示例不更新值

发布于 2025-01-17 07:55:38 字数 1975 浏览 2 评论 0原文

我正在遵循 Chainlink 文档（也在下面）中的示例，并且有一直在混音中测试它。我已经在 kovan 测试网和 kovan 测试网上部署了合约。发送链接给它，我能够执行 requestVolumeData() 并获得交易已完成的通知，并且我能够在 etherscan 上查看它。

然而，当检查音量值时，它总是返回 0。我知道这可能需要一些时间，但等待 20 分钟后该值没有改变。

我已经使用以下 oracle 地址/作业 ID 进行了测试。从例子来看 (0xc57B33452b4F7BB189bB5AfaE9cc4aBa1f7a4FD8 & d5270d1c311941d0b08bead21fea7747) 来自随附的 YouTube 视频 (0x2f90A6D021db21e1B2A077c5a37B3C7E75D15b7e & 29fa9aa13bf1468788b7cc4a500a45b8) 以及来自 chainlink 市场（设置为 kovan 网络）。（0xA1d76ABD287d87d6E1d92262F7D53Cbe4f290505 & fc3ea215bb9e44e088107b29bb495e2d）

我不确定哪里出了问题，我不认为这是代码，因为它是从示例复制粘贴的。但这些地址都不起作用。

pragma solidity ^0.8.7;

import "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";

contract APIConsumer is ChainlinkClient {
    using Chainlink for Chainlink.Request;
  
    uint256 public volume;

    address private oracle;
    bytes32 private jobId;
    uint256 private fee;

    constructor() {
        setPublicChainlinkToken();
        oracle = 0xc57B33452b4F7BB189bB5AfaE9cc4aBa1f7a4FD8;
        jobId = "d5270d1c311941d0b08bead21fea7747";
        fee = 0.1 * 10 ** 18;
    }
    
    function requestVolumeData() public returns (bytes32 requestId) {
        Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);
        
        request.add("get", "https://min-api.cryptocompare.com/data/pricemultifull?fsyms=ETH&tsyms=USD");        
        request.add("path", "RAW.ETH.USD.VOLUME24HOUR");
        int timesAmount = 10**18;
        request.addInt("times", timesAmount);
        
        return sendChainlinkRequestTo(oracle, request, fee);
    }
    
    function fulfill(bytes32 _requestId, uint256 _volume) public recordChainlinkFulfillment(_requestId) {
        volume = _volume;
    }
}

原文

I'm following the example within the Chainlink documentation (also below), and have been testing it within remix. I've deployed the contract on the kovan testnet & sent LINK to it, I'm able to execute the requestVolumeData() and get the notification that the transaction was completed and I'm able to view it on etherscan.

However, when checking the value of volume it always returns 0. I'm aware that it can take some time, but the value hasn't changed after waiting 20 minutes.

I've done tests with the following oracle addresses / job id's.
From the example
(0xc57B33452b4F7BB189bB5AfaE9cc4aBa1f7a4FD8 & d5270d1c311941d0b08bead21fea7747)
From the accompanying youtube video
(0x2f90A6D021db21e1B2A077c5a37B3C7E75D15b7e & 29fa9aa13bf1468788b7cc4a500a45b8)
And from chainlink market (set to kovan network).
(0xA1d76ABD287d87d6E1d92262F7D53Cbe4f290505 & fc3ea215bb9e44e088107b29bb495e2d)

I'm not sure where things go wrong, I don't think it's the code since it's copy pasted from the example. But non of the adreses have worked.

pragma solidity ^0.8.7;

import "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";

contract APIConsumer is ChainlinkClient {
    using Chainlink for Chainlink.Request;
  
    uint256 public volume;

    address private oracle;
    bytes32 private jobId;
    uint256 private fee;

    constructor() {
        setPublicChainlinkToken();
        oracle = 0xc57B33452b4F7BB189bB5AfaE9cc4aBa1f7a4FD8;
        jobId = "d5270d1c311941d0b08bead21fea7747";
        fee = 0.1 * 10 ** 18;
    }
    
    function requestVolumeData() public returns (bytes32 requestId) {
        Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);
        
        request.add("get", "https://min-api.cryptocompare.com/data/pricemultifull?fsyms=ETH&tsyms=USD");        
        request.add("path", "RAW.ETH.USD.VOLUME24HOUR");
        int timesAmount = 10**18;
        request.addInt("times", timesAmount);
        
        return sendChainlinkRequestTo(oracle, request, fee);
    }
    
    function fulfill(bytes32 _requestId, uint256 _volume) public recordChainlinkFulfillment(_requestId) {
        volume = _volume;
    }
}

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