CODEWITHSUNDEEP
soliditychainlinkchainlink-keepers
PythonCoder1981
PythonCoder1981

Reputation: 463

ChainLink Price Fee using Keepers

I am trying to use the keepers chainlink service to get the eth/usd on the Kovan test net. I deployed my contract and registered it with keepers and funded with link token. Still I am not seeing the getLatestPrice() update.

contract address: 0xA29196C270cC15cb5D758Ae3613285720e6DEEb9 Upkeep address: 0xA29196C270cC15cb5D758Ae3613285720e6DEEb9

// SPDX-License-Identifier: MIT
pragma solidity 0.8.6;

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";


interface KeeperCompatibleInterface {
    function checkUpkeep(bytes calldata checkData) external returns (bool upkeepNeeded, bytes memory performData);
    function performUpkeep(bytes calldata performData) external;
}

contract Counter is KeeperCompatibleInterface {
    
    AggregatorV3Interface internal priceFeed;

    uint public counter;    // Public counter variable

    // Use an interval in seconds and a timestamp to slow execution of Upkeep
    uint public immutable interval;
    uint public lastTimeStamp;
    
    constructor(uint updateInterval) {
      interval = updateInterval;
      lastTimeStamp = block.timestamp;
      counter = 0;
      priceFeed = AggregatorV3Interface(0x9326BFA02ADD2366b30bacB125260Af641031331);
    }
    
    function getLatestPrice() public view returns (int) {
        (
            uint80 roundID, 
            int price,
            uint startedAt,
            uint timeStamp,
            uint80 answeredInRound
        ) = priceFeed.latestRoundData();
        return price;
    }

    function checkUpkeep(bytes calldata checkData) external view override returns (bool upkeepNeeded, bytes memory performData) {
        upkeepNeeded = (block.timestamp - lastTimeStamp) > interval;
        performData = checkData;
    }

    function performUpkeep(bytes calldata performData) external override {
        lastTimeStamp = block.timestamp;
        counter = counter + 1;
        performData;
        getLatestPrice();
    }
}

Upvotes: 0

Views: 122

Answers (1)

Harry Papacharissiou
Harry Papacharissiou

Reputation: 856

your upkeep job would be getting called, but the problem is you're not doing anything with the getLatestPrice function. This is a view function that just returns the current feed price. If you were to add a line in your performUpkeep function to actually store the result of getLatestPrice() in a variable in the contract, then you would see that it is getting called

Upvotes: 1

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