const Web3Data = require("web3data-js@0.6.1")
const w3d = new Web3Data(process.env.API_KEY)
// Initialize parameters
const BASE = 'eth'
const QUOTE = 'usd'
const endDate = +new Date()
const startDate = +new Date() - (86400000)
// Get historical pricing data for the pair 'eth/usd'
// We can adjust the window using the 'startDate' & 'endDate' parameters
// We'll use this data for backtesting
const histPrices = await w3d.market.getPrices("eth", { startDate, endDate })
// you can iterate over this array of historical prices to backtest assumptions