alexroan

pragma solidity ^0.6.0;

import "https://raw.githubusercontent.com/smartcontractkit/chainlink/master/evm-contracts/src/v0.6/ChainlinkClient.sol";

/**
 * DO NOT USE IN PRODUCTION!!
 * THIS IS EXAMPLE CONTRACT FOR THE KOVAN TESTNET
 */
contract KrakenConsumer is ChainlinkClient {
    

alexroan

pragma solidity ^0.5.0;

interface AggregatorV3Interface {

    function decimals() external view returns (uint8);
    function description() external view returns (string memory);
    function version() external view returns (uint256);

    // getRoundData and latestRoundData should both raise "No data present"
    // if they do not have data to report, instead of returning unset values

alexroan

pragma solidity ^0.5.0;

interface Oracle {
    function getUnderlyingPrice(address cToken) external view returns (uint);
}

contract Comptroller {
    Oracle public oracle;
}

alexroan

// SPDX-License-Identifier: MIT
pragma solidity 0.6.6;

import "https://github.com/smartcontractkit/chainlink/blob/master/evm-contracts/src/v0.6/VRFConsumerBase.sol";
import "https://github.com/smartcontractkit/chainlink/blob/master/evm-contracts/src/v0.6/Owned.sol";

/**
 * @notice A Chainlink VRF consumer which uses randomness to mimic the rolling
 * of a 20 sided die
 * @dev This is only an example implementation and not necessarily suitable for mainnet.

alexroan

pragma solidity ^0.7.0;

library bytesSwap {

    function bytes32ToString(bytes32 _bytes32) public pure returns (string memory) {
        uint8 i = 0;
        while(i < 32 && _bytes32[i] != 0) {
            i++;
        }
        bytes memory bytesArray = new bytes(i);

alexroan

pragma solidity ^0.6.0;

import "https://github.com/smartcontractkit/chainlink/blob/master/evm-contracts/src/v0.6/ChainlinkClient.sol";

contract Client is ChainlinkClient {
    // where to store the last id scanned
    bytes32 public last_uid;
    // chainlink vars for communicating with the RFID external adapter
    address private oracle;
    bytes32 private jobId;

alexroan

// This example code is designed to quickly deploy an example contract using Remix.

pragma solidity ^0.6.7;

import "https://github.com/smartcontractkit/chainlink/blob/master/evm-contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";

contract HistoricalPriceConsumerV3 {

    AggregatorV3Interface internal priceFeed;
    

alexroan

from web3 import Web3
web3 = Web3(Web3.HTTPProvider('https://ropsten.infura.io/v3/<infura_project_id>'))
abi = '[{"anonymous":false,"inputs":[{"indexed":true,"internalType":"int256","name":"current","type":"int256"},{"indexed":true,"internalType":"uint256","name":"roundId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"AnswerUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"roundId","type":"uint256"},{"indexed":true,"internalType":"address","name":"startedBy","type":"address"},{"indexed":false,"internalType":"uint256","name":"startedAt","type":"uint256"}],"name":"NewRound","type":"event"},{"inputs":[{"internalType":"uint256","name":"roundId","type":"uint256"}],"name":"getAnswer","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"roundId","type":"uint256"}],"name":"getTimestamp","outputs":[{"internal

alexroan

// Require web3js
const Web3 = require("web3");
// Setup web3
const provider = new Web3.providers.HttpProvider("https://ropsten.infura.io/v3/<infura_project_id>");
const web3 = new Web3(provider);

// Load ABI and Address
const aggregatorInterfaceABI = [{"anonymous":false,"inputs":[{"indexed":true,"internalType":"int256","name":"current","type":"int256"},{"indexed":true,"internalType":"uint256","name":"roundId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"timestamp","type":"uint256"}],"name":"AnswerUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"roundId","type":"uint256"},{"indexed":true,"internalType":"address","name":"startedBy","type":"address"},{"indexed":false,"internalType":"uint256","name":"startedAt","type":"uint256"}],"name":"NewRound","type":"event"},{"inputs":[{"internalType":"uint256","name":"roundId","type":"uint256"}],"name":"getAnswer","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"

alexroan

// This example code is designed to quickly deploy an example contract using Remix.

pragma solidity ^0.6.7;

import "https://github.com/smartcontractkit/chainlink/blob/master/evm-contracts/src/v0.6/interfaces/AggregatorV3Interface.sol";

contract HistoricalPriceConsumerV3 {

    AggregatorV3Interface internal priceFeed;