FEI Re-weight Monitor

fei_reweight_monitor.js

let Web3 = require('web3');
let web3 = new Web3(new Web3.providers.WebsocketProvider('wss://mainnet.infura.io/ws/v3/YOUR_API_KEY'));
let abi = '[{"inputs":[{"internalType":"address","name":"_core","type":"address"},{"internalType":"address","name":"_oracle","type":"address"},{"internalType":"address","name":"_pair","type":"address"},{"internalType":"address","name":"_router","type":"address"},{"internalType":"uint32","name":"_growthRate","type":"uint32"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_core","type":"address"}],"name":"CoreUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_account","type":"address"},{"indexed":false,"internalType":"bool","name":"_isExempt","type":"bool"}],"name":"ExemptAddressUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_growthRate","type":"uint256"}],"name":"GrowthRateUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_oracle","type":"address"}],"name":"OracleUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_pair","type":"address"}],"name":"PairUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_weight","type":"uint256"},{"indexed":false,"internalType":"bool","name":"_active","type":"bool"}],"name":"TimeWeightUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"TIME_WEIGHT_GRANULARITY","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"core","outputs":[{"internalType":"contract ICore","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"price","type":"tuple"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"peg","type":"tuple"}],"name":"deviationBelowPeg","outputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"","type":"tuple"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"fei","outputs":[{"internalType":"contract IFei","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"feiBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getBuyIncentive","outputs":[{"internalType":"uint256","name":"incentive","type":"uint256"},{"internalType":"uint32","name":"weight","type":"uint32"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"_initialDeviation","type":"tuple"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"_finalDeviation","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"initialDeviation","type":"tuple"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"finalDeviation","type":"tuple"}],"name":"getBuyIncentiveMultiplier","outputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getGrowthRate","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint256","name":"feiReserves","type":"uint256"},{"internalType":"uint256","name":"tokenReserves","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"getSellPenalty","outputs":[{"internalType":"uint256","name":"penalty","type":"uint256"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"_initialDeviation","type":"tuple"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"_finalDeviation","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"initialDeviation","type":"tuple"},{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"finalDeviation","type":"tuple"}],"name":"getSellPenaltyMultiplier","outputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTimeWeight","outputs":[{"internalType":"uint32","name":"","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"sender","type":"address"},{"internalType":"address","name":"receiver","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"amountIn","type":"uint256"}],"name":"incentivize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"price","type":"tuple"}],"name":"invert","outputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"","type":"tuple"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"isExemptAddress","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isIncentiveParity","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isTimeWeightActive","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"liquidityOwned","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"oracle","outputs":[{"internalType":"contract IOracle","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pair","outputs":[{"internalType":"contract IUniswapV2Pair_3","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"peg","outputs":[{"components":[{"internalType":"uint256","name":"value","type":"uint256"}],"internalType":"struct Decimal.D256","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"contract IUniswapV2Router02_2","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"core","type":"address"}],"name":"setCore","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"},{"internalType":"bool","name":"isExempt","type":"bool"}],"name":"setExemptAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_oracle","type":"address"}],"name":"setOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_pair","type":"address"}],"name":"setPair","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"weight","type":"uint32"},{"internalType":"uint32","name":"growth","type":"uint32"},{"internalType":"bool","name":"active","type":"bool"}],"name":"setTimeWeight","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint32","name":"growthRate","type":"uint32"}],"name":"setTimeWeightGrowth","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tribe","outputs":[{"internalType":"contract IERC20_5","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tribeBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"updateOracle","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]';
let address = '0xfe5b6c2a87A976dCe20130c423C679f4d6044cD7' // Incentivizer for UNIv2 FEI-ETH
let contract = new web3.eth.Contract(JSON.parse(abi), address);

web3.eth.subscribe('newBlockHeaders')
    .on("data", function(blockHeader){
        console.log(`New block mined: ${blockHeader.number}`)
        checkParity();
    })

async function checkParity() {
    var parity = await contract.methods.isIncentiveParity().call()
    var deviation = await contract.methods.getSellPenalty(0).call()
    var sellMultiplier = await contract.methods.getSellPenaltyMultiplier(deviation._initialDeviation, deviation._initialDeviation).call()
    var buyMultiplier = await contract.methods.getBuyIncentiveMultiplier(deviation._initialDeviation, deviation._initialDeviation).call()
    console.log(`  Sell Penalty: ${(parseInt(sellMultiplier.value) / 1e18 * 100).toFixed(2)}%`)
    console.log(`  Buy Incentive: ${(parseInt(buyMultiplier.value) / 1e18 * 100).toFixed(2)}%`)
    console.log(`  Incentive Parity: ${parity}`);
}