get - Chainlink 获取请求突然不适用于当前的 Solidity 版本
问题描述
我一直在使用下面的一段代码,它一直运行良好。但是,今天我收到以下错误:
类型错误:在结构 >Chainlink.Request 内存中进行参数相关查找后,未找到成员“添加”或不可见。
我尝试将我的 Solidity 版本切换到 0.6.6,然后将 Chainlink 版本切换到 v0.6,它似乎与旧版本完美配合。
有人对可能出现的问题提出建议吗?
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.6;
import "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";
contract APIConsumer is ChainlinkClient {
uint256 public volume;
address private oracle;
bytes32 private jobId;
uint256 private fee;
address public _link = 0xa36085F69e2889c224210F603D836748e7dC0088;
constructor() {
if (_link == address(0)) {
setPublicChainlinkToken();
} else {
setChainlinkToken(_link);
}
oracle = 0x56dd6586DB0D08c6Ce7B2f2805af28616E082455;
jobId = "b6602d14e4734c49a5e1ce19d45a4632";
fee = 0.1 * 10 ** 18; // 0.1 LINK
}
function requestVolumeData() public returns (bytes32 requestId)
{
Chainlink.Request memory request = buildChainlinkRequest(jobId, address(this), this.fulfill.selector);
// Set the URL to perform the GET request on
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);
// Sends the request
return sendChainlinkRequestTo(oracle, request, fee);
}
function fulfill(bytes32 _requestId, uint256 _volume) public recordChainlinkFulfillment(_requestId)
{
volume = _volume;
}
}
解决方案
是的!好问题。
这是对较新合同的更新。
添加这一行:
contract APIConsumer is ChainlinkClient {
using Chainlink for Chainlink.Request; // This is the new line
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