48 lines
1.6 KiB
JavaScript
48 lines
1.6 KiB
JavaScript
const { offchainOracleAddress } = require('./config')
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const {
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getArgsForOracle,
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setSafeInterval,
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toChecksumAddress,
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toBN,
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RelayerError,
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logRelayerError,
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} = require('./utils')
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const { redis } = require('./modules/redis')
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const web3 = require('./modules/web3')()
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const offchainOracleABI = require('../abis/OffchainOracle.abi.json')
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const offchainOracle = new web3.eth.Contract(offchainOracleABI, offchainOracleAddress)
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const { tokenAddresses, oneUintAmount, currencyLookup } = getArgsForOracle()
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async function main() {
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try {
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const ethPrices = {}
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for (let i = 0; i < tokenAddresses.length; i++) {
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try {
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const isWrap =
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toChecksumAddress(tokenAddresses[i]) ===
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toChecksumAddress('0x5d3a536E4D6DbD6114cc1Ead35777bAB948E3643')
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const price = await offchainOracle.methods.getRateToEth(tokenAddresses[i], isWrap).call()
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const numerator = toBN(oneUintAmount[i])
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const denominator = toBN(10).pow(toBN(18)) // eth decimals
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const priceFormatted = toBN(price).mul(numerator).div(denominator)
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ethPrices[currencyLookup[tokenAddresses[i]]] = priceFormatted.toString()
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} catch (e) {
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console.error('cant get price of ', tokenAddresses[i])
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}
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}
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if (!Object.values(ethPrices).length) {
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throw new RelayerError('Can`t update prices', 1)
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}
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await redis.hmset('prices', ethPrices)
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console.log('Wrote following prices to redis', ethPrices)
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} catch (e) {
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await logRelayerError(redis, e.message)
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console.error('priceWatcher error', e)
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}
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}
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setSafeInterval(main, 30 * 1000)
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