alexroan

pragma solidity 0.6.0;

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

contract ExampleOracleClient is ChainlinkClient, Ownable {
  	address constant private ORACLE = 0x83dA1beEb89Ffaf56d0B7C50aFB0A66Fb4DF8cB1;
	string constant private JOB_ID = "93547cb3c6784ec08a366be6211caa24";
	uint256 constant private ORACLE_PAYMENT = 1 * LINK / 10;

alexroan

// Contracts
const Exchange = artifacts.require("Exchange")

// Utils
const ether = (n) => {
  return new web3.utils.BN(
    web3.utils.toWei(n.toString(), 'ether')
  )
}

alexroan

module.exports = async function(callback) {
	console.log("IT WORKS");
	
	callback();
}

alexroan

contract Exchange {
    
    //fill an order
    function fillOrder(uint256 _id) public {
        //...
    }

    //make order
    function makeOrder(address _tokenGet, uint256 _amountGet, address _tokenGive, uint256 _amountGive) public {
        //...

alexroan

module.exports = async function(callback) {
	// do some stuff
	
	callback();
}

alexroan

cEthInstance.methods.redeemUnderlying(redeemAmount).send({from: account})
    .once('transactionHash', (hash) => {
        // Transaction Hash
    })
    .on('confirmation', (number, receipt) => {
        // Number of confirmations
    })
    .on('error', (error) => {
        console.log(error);
    })

alexroan

cEthInstance.methods.mint().send({from: account, value: supplyValue})
    .once('transactionHash', (hash) => {
        // Transaction hash
    })
    .on('confirmation', (number, receipt) => {
        // Number of confirmations
    })
    .on('error', (error) => {
        console.log(error);
    });

alexroan

pragma solidity >=0.6.2;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/EnumerableSet.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";
import "./RandomNumberGenerator.sol";

contract Lottery is Ownable{

alexroan

function drawNumber(uint256 _seed) public onlyOwner isState(LotteryState.Open) {
	_changeState(LotteryState.Closed);
	randomNumberRequestId = RandomNumberGenerator(randomNumberGenerator).request(_seed);
	emit NumberRequested(randomNumberRequestId);
}
  
function numberDrawn(bytes32 _randomNumberRequestId, uint _randomNumber) public onlyRandomGenerator isState(LotteryState.Closed) {
	if (_randomNumberRequestId == randomNumberRequestId) {
		winningNumber = _randomNumber;
		emit NumberDrawn(_randomNumberRequestId, _randomNumber);

alexroan

pragma solidity ^0.6.2;

import "./VRFConsumerBase.sol";
import "./Lottery.sol";

contract RandomNumberGenerator is VRFConsumerBase {

    address requester;
    bytes32 keyHash;
    uint256 fee;