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apy.js
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const Web3 = require('web3');
// Infura API Key
const infura = process.env.infuraApiKey;
if (!infura) {
console.error('Missing a free Infura project key.');
process.exit(1);
}
const web3 = new Web3(`https://mainnet.infura.io/v3/${infura}`);
const cBAT = '0x6c8c6b02e7b2be14d4fa6022dfd6d75921d90e4e';
const cDAI = '0x5d3a536e4d6dbd6114cc1ead35777bab948e3643';
const cETH = '0x4ddc2d193948926d02f9b1fe9e1daa0718270ed5';
const cREP = '0x158079ee67fce2f58472a96584a73c7ab9ac95c1';
const cUSDC = '0x39aa39c021dfbae8fac545936693ac917d5e7563';
const cUSDT = '0xf650c3d88d12db855b8bf7d11be6c55a4e07dcc9';
const cWBTC = '0xc11b1268c1a384e55c48c2391d8d480264a3a7f4';
const cZRX = '0xb3319f5d18bc0d84dd1b4825dcde5d5f7266d407';
const BAT = '0x0d8775f648430679a709e98d2b0cb6250d2887ef';
const DAI = '0x6b175474e89094c44da98b954eedeac495271d0f';
const REP = '0x1985365e9f78359a9b6ad760e32412f4a445e862';
const USDC = '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48';
const USDT = '0xdac17f958d2ee523a2206206994597c13d831ec7';
const WBTC = '0x2260fac5e5542a773aa44fbcfedf7c193bc2c599';
const ZRX = '0xe41d2489571d322189246dafa5ebde1f4699f498';
const erc20Abi = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"decimals","outputs":[{"name":"","type":"uint8"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"balance","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"name":"_owner","type":"address"},{"name":"_spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"value","type":"uint256"}],"name":"Transfer","type":"event"}];
const cTokenAbi = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x06fdde03"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"amount","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x095ea7b3"},{"constant":false,"inputs":[{"name":"repayAmount","type":"uint256"}],"name":"repayBorrow","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x0e752702"},{"constant":true,"inputs":[],"name":"reserveFactorMantissa","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x173b9904"},{"constant":false,"inputs":[{"name":"account","type":"address"}],"name":"borrowBalanceCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x17bfdfbc"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x18160ddd"},{"constant":true,"inputs":[],"name":"exchangeRateStored","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x182df0f5"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x23b872dd"},{"constant":false,"inputs":[{"name":"borrower","type":"address"},{"name":"repayAmount","type":"uint256"}],"name":"repayBorrowBehalf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x2608f818"},{"constant":true,"inputs":[],"name":"pendingAdmin","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x26782247"},{"constant":true,"inputs":[],"name":"exchangeRateCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x313ce567"},{"constant":false,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOfUnderlying","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x3af9e669"},{"constant":true,"inputs":[],"name":"getCash","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x3b1d21a2"},{"constant":false,"inputs":[{"name":"newComptroller","type":"address"}],"name":"_setComptroller","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x4576b5db"},{"constant":true,"inputs":[],"name":"totalBorrows","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x47bd3718"},{"constant":true,"inputs":[],"name":"comptroller","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x5fe3b567"},{"constant":false,"inputs":[{"name":"reduceAmount","type":"uint256"}],"name":"_reduceReserves","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x601a0bf1"},{"constant":true,"inputs":[],"name":"initialExchangeRateMantissa","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x675d972c"},{"constant":true,"inputs":[],"name":"accrualBlockNumber","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x6c540baf"},{"constant":true,"inputs":[],"name":"underlying","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x6f307dc3"},{"constant":true,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x70a08231"},{"constant":false,"inputs":[],"name":"totalBorrowsCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x73acee98"},{"constant":false,"inputs":[{"name":"redeemAmount","type":"uint256"}],"name":"redeemUnderlying","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x852a12e3"},{"constant":true,"inputs":[],"name":"totalReserves","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x8f840ddd"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","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","type":"constructor","signature":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"name":"interestAccumulated","type":"uint256"},{"indexed":false,"name":"borrowIndex","type":"uint256"},{"indexed":false,"name":"totalBorrows","type":"uint256"}],"name":"AccrueInterest","type":"event","signature":"0x875352fb3fadeb8c0be7cbbe8ff761b308fa7033470cd0287f02f3436fd76cb9"},{"anonymous":false,"inputs":[{"indexed":false,"name":"minter","type":"address"},{"indexed":false,"name":"mintAmount","type":"uint256"},{"indexed":false,"name":"mintTokens","type":"uint256"}],"name":"Mint","type":"event","signature":"0x4c209b5fc8ad50758f13e2e1088ba56a560dff690a1c6fef26394f4c03821c4f"},{"anonymous":false,"inputs":[{"indexed":false,"name":"redeemer","type":"address"},{"indexed":false,"name":"redeemAmount","type":"uint256"},{"indexed":false,"name":"redeemTokens","type":"uint256"}],"name":"Redeem","type":"event","signature":"0xe5b754fb1abb7f01b499791d0b820ae3b6af3424ac1c59768edb53f4ec31a929"},{"anonymous":false,"inputs":[{"indexed":false,"name":"borrower","type":"address"},{"indexed":false,"name":"borrowAmount","type":"uint256"},{"indexed":false,"name":"accountBorrows","type":"uint256"},{"indexed":false,"name":"totalBorrows","type":"uint256"}],"name":"Borrow","type":"event","signature":"0x13ed6866d4e1ee6da46f845c46d7e54120883d75c5ea9a2dacc1c4ca8984ab80"},{"anonymous":false,"inputs":[{"indexed":false,"name":"payer","type":"address"},{"indexed":false,"name":"borrower","type":"address"},{"indexed":false,"name":"repayAmount","type":"uint256"},{"indexed":false,"name":"accountBorrows","type":"uint256"},{"indexed":false,"name":"totalBorrows","type":"uint256"}],"name":"RepayBorrow","type":"event","signature":"0x1a2a22cb034d26d1854bdc6666a5b91fe25efbbb5dcad3b0355478d6f5c362a1"},{"anonymous":false,"inputs":[{"indexed":false,"name":"liquidator","type":"address"},{"indexed":false,"name":"borrower","type":"address"},{"indexed":false,"name":"repayAmount","type":"uint256"},{"indexed":false,"name":"cTokenCollateral","type":"address"},{"indexed":false,"name":"seizeTokens","type":"uint256"}],"name":"LiquidateBorrow","type":"event","signature":"0x298637f684da70674f26509b10f07ec2fbc77a335ab1e7d6215a4b2484d8bb52"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldPendingAdmin","type":"address"},{"indexed":false,"name":"newPendingAdmin","type":"address"}],"name":"NewPendingAdmin","type":"event","signature":"0xca4f2f25d0898edd99413412fb94012f9e54ec8142f9b093e7720646a95b16a9"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldAdmin","type":"address"},{"indexed":false,"name":"newAdmin","type":"address"}],"name":"NewAdmin","type":"event","signature":"0xf9ffabca9c8276e99321725bcb43fb076a6c66a54b7f21c4e8146d8519b417dc"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldComptroller","type":"address"},{"indexed":false,"name":"newComptroller","type":"address"}],"name":"NewComptroller","type":"event","signature":"0x7ac369dbd14fa5ea3f473ed67cc9d598964a77501540ba6751eb0b3decf5870d"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldInterestRateModel","type":"address"},{"indexed":false,"name":"newInterestRateModel","type":"address"}],"name":"NewMarketInterestRateModel","type":"event","signature":"0xedffc32e068c7c95dfd4bdfd5c4d939a084d6b11c4199eac8436ed234d72f926"},{"anonymous":false,"inputs":[{"indexed":false,"name":"oldReserveFactorMantissa","type":"uint256"},{"indexed":false,"name":"newReserveFactorMantissa","type":"uint256"}],"name":"NewReserveFactor","type":"event","signature":"0xaaa68312e2ea9d50e16af5068410ab56e1a1fd06037b1a35664812c30f821460"},{"anonymous":false,"inputs":[{"indexed":false,"name":"admin","type":"address"},{"indexed":false,"name":"reduceAmount","type":"uint256"},{"indexed":false,"name":"newTotalReserves","type":"uint256"}],"name":"ReservesReduced","type":"event","signature":"0x3bad0c59cf2f06e7314077049f48a93578cd16f5ef92329f1dab1420a99c177e"},{"anonymous":false,"inputs":[{"indexed":false,"name":"error","type":"uint256"},{"indexed":false,"name":"info","type":"uint256"},{"indexed":false,"name":"detail","type":"uint256"}],"name":"Failure","type":"event","signature":"0x45b96fe442630264581b197e84bbada861235052c5a1aadfff9ea4e40a969aa0"},{"anonymous":false,"inputs":[{"indexed":true,"name":"from","type":"address"},{"indexed":true,"name":"to","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"Transfer","type":"event","signature":"0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef"},{"anonymous":false,"inputs":[{"indexed":true,"name":"owner","type":"address"},{"indexed":true,"name":"spender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"}],"name":"Approval","type":"event","signature":"0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925"}];
const cEthAbi = [{"constant":true,"inputs":[],"name":"name","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x06fdde03"},{"constant":false,"inputs":[{"name":"spender","type":"address"},{"name":"amount","type":"uint256"}],"name":"approve","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x095ea7b3"},{"constant":false,"inputs":[],"name":"mint","outputs":[],"payable":true,"stateMutability":"payable","type":"function","signature":"0x1249c58b"},{"constant":true,"inputs":[],"name":"reserveFactorMantissa","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x173b9904"},{"constant":false,"inputs":[{"name":"account","type":"address"}],"name":"borrowBalanceCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x17bfdfbc"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x18160ddd"},{"constant":true,"inputs":[],"name":"exchangeRateStored","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x182df0f5"},{"constant":false,"inputs":[{"name":"src","type":"address"},{"name":"dst","type":"address"},{"name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x23b872dd"},{"constant":true,"inputs":[],"name":"pendingAdmin","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x26782247"},{"constant":true,"inputs":[],"name":"exchangeRateCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x313ce567"},{"constant":false,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOfUnderlying","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x3af9e669"},{"constant":true,"inputs":[],"name":"getCash","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x3b1d21a2"},{"constant":false,"inputs":[{"name":"newComptroller","type":"address"}],"name":"_setComptroller","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x4576b5db"},{"constant":true,"inputs":[],"name":"totalBorrows","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x47bd3718"},{"constant":false,"inputs":[],"name":"repayBorrow","outputs":[],"payable":true,"stateMutability":"payable","type":"function","signature":"0x4e4d9fea"},{"constant":true,"inputs":[],"name":"comptroller","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x5fe3b567"},{"constant":false,"inputs":[{"name":"reduceAmount","type":"uint256"}],"name":"_reduceReserves","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x601a0bf1"},{"constant":true,"inputs":[],"name":"initialExchangeRateMantissa","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x675d972c"},{"constant":true,"inputs":[],"name":"accrualBlockNumber","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x6c540baf"},{"constant":true,"inputs":[{"name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x70a08231"},{"constant":false,"inputs":[],"name":"totalBorrowsCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x73acee98"},{"constant":false,"inputs":[{"name":"redeemAmount","type":"uint256"}],"name":"redeemUnderlying","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0x852a12e3"},{"constant":true,"inputs":[],"name":"totalReserves","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x8f840ddd"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x95d89b41"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"borrowBalanceStored","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0x95dd9193"},{"constant":false,"inputs":[],"name":"accrueInterest","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xa6afed95"},{"constant":false,"inputs":[{"name":"dst","type":"address"},{"name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xa9059cbb"},{"constant":true,"inputs":[],"name":"borrowIndex","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xaa5af0fd"},{"constant":false,"inputs":[{"name":"borrower","type":"address"},{"name":"cTokenCollateral","type":"address"}],"name":"liquidateBorrow","outputs":[],"payable":true,"stateMutability":"payable","type":"function","signature":"0xaae40a2a"},{"constant":true,"inputs":[],"name":"supplyRatePerBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xae9d70b0"},{"constant":false,"inputs":[{"name":"liquidator","type":"address"},{"name":"borrower","type":"address"},{"name":"seizeTokens","type":"uint256"}],"name":"seize","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xb2a02ff1"},{"constant":false,"inputs":[{"name":"newPendingAdmin","type":"address"}],"name":"_setPendingAdmin","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xb71d1a0c"},{"constant":false,"inputs":[],"name":"exchangeRateCurrent","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xbd6d894d"},{"constant":true,"inputs":[{"name":"account","type":"address"}],"name":"getAccountSnapshot","outputs":[{"name":"","type":"uint256"},{"name":"","type":"uint256"},{"name":"","type":"uint256"},{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xc37f68e2"},{"constant":false,"inputs":[{"name":"borrowAmount","type":"uint256"}],"name":"borrow","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xc5ebeaec"},{"constant":false,"inputs":[{"name":"redeemTokens","type":"uint256"}],"name":"redeem","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xdb006a75"},{"constant":true,"inputs":[{"name":"owner","type":"address"},{"name":"spender","type":"address"}],"name":"allowance","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xdd62ed3e"},{"constant":false,"inputs":[{"name":"borrower","type":"address"}],"name":"repayBorrowBehalf","outputs":[],"payable":true,"stateMutability":"payable","type":"function","signature":"0xe5974619"},{"constant":false,"inputs":[],"name":"_acceptAdmin","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xe9c714f2"},{"constant":false,"inputs":[{"name":"newInterestRateModel","type":"address"}],"name":"_setInterestRateModel","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xf2b3abbd"},{"constant":true,"inputs":[],"name":"interestRateModel","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xf3fdb15a"},{"constant":true,"inputs":[],"name":"admin","outputs":[{"name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xf851a440"},{"constant":true,"inputs":[],"name":"borrowRatePerBlock","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xf8f9da28"},{"constant":false,"inputs":[{"name":"newReserveFactorMantissa","type":"uint256"}],"name":"_setReserveFactor","outputs":[{"name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function","signature":"0xfca7820b"},{"constant":true,"inputs":[],"name":"isCToken","outputs":[{"name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function","signature":"0xfe9c44ae"},{"inputs":[{"name":"comptroller_","type":"address"},{"name":"interestRateModel_","type":"address"},{"name":"initialExchangeRateMantissa_","type":"uint256"},{"name":"name_","type":"string"},{"name":"symbol_","type":"string"},{"name":"exchangeRateCurrent_","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"constructor","signature":"constructor"},{"payable":true,"stateMutability":"payable","type":"fallback"},{"anonymous":false,"inputs":[{"indexed":false,"name":"interestAccumulated","type":"uint256"},{"indexed":false,"name":"borrowIndex","type":"uint256"},{"indexed":false,"name":"totalBorrows","type":"uint256"}],"name":"AccrueInterest","type":"event","signature":"0x875352fb3fadeb8c0be7cbbe8ff761b308fa7033470cd0287f02f3436fd76cb9"},{"anonymous":false,"inputs":[{"indexed":false,"name":"minte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const main = async () => {
const blocksPerDay = 4 * 60 * 24; // 4 blocks in 1 minute
const daysPerYear = 365;
const ethDecimals = 18;
const ethMantissa = Math.pow(10, ethDecimals); // 1 * 10 ^ 18
let underlying;
// Rate = cToken.supplyRatePerBlock();
// Rate = 37893566
// ETH Mantissa = 1 * 10 ^ 18 (ETH has 18 decimal places)
// Blocks Per Day = 4 * 60 * 24 (based on 4 blocks occurring every minute)
// APY = ((((Rate / ETH Mantissa * Blocks Per Day + 1) ^ Days Per Year - 1)) - 1) x 100
let cToken = new web3.eth.Contract(cEthAbi, cETH);
let supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
let borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
let supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
let borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for ETH ${supplyApy} %`);
console.log(`Borrow APY for ETH ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cBAT);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for BAT ${supplyApy} %`);
console.log(`Borrow APY for BAT ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cDAI);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for DAI ${supplyApy} %`);
console.log(`Borrow APY for DAI ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cREP);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for REP ${supplyApy} %`);
console.log(`Borrow APY for REP ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cUSDC);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for USDC ${supplyApy} %`);
console.log(`Borrow APY for USDC ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cUSDT);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for USDT ${supplyApy} %`);
console.log(`Borrow APY for USDT ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cWBTC);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for WBTC ${supplyApy} %`);
console.log(`Borrow APY for WBTC ${borrowApy} %\n`);
cToken = new web3.eth.Contract(cTokenAbi, cZRX);
supplyRatePerBlock = await cToken.methods.supplyRatePerBlock().call();
borrowRatePerBlock = await cToken.methods.borrowRatePerBlock().call();
supplyApy = (((Math.pow((supplyRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
borrowApy = (((Math.pow((borrowRatePerBlock / ethMantissa * blocksPerDay) + 1, daysPerYear - 1))) - 1) * 100;
console.log(`Supply APY for ZRX ${supplyApy} %`);
console.log(`Borrow APY for ZRX ${borrowApy} %\n`);
};
main().catch((err) => {
console.error(err);
});