Token Metrics: Market Data

node v10.23.3
version: 2.0.0
endpointsharetweet
const Web3Data = require("web3data-js@0.6.1") // Create the Web3Data instances passing in your API Key (Get one! -> amberdata.io/onboarding) // If you're signed in and have an api key it will get autopopulated here! const w3d = new Web3Data(process.env.API_KEY) // Contract we'll use as an example but you would but the address of your dApp here const BAT_CONTRACT = '0x0d8775f648430679a709e98d2b0cb6250d2887ef' // Get time from 1 day ago let startDate = new Date() startDate.setDate(startDate.getDate() - 1) startDate = startDate.getTime() // Get current price data for token contract const currentPriceData = await w3d.market.getTokenPrices(BAT_CONTRACT) console.log({currentPriceData}) // We can adjust the window using the 'startDate' & 'endDate' parameters // for now we want historical prices over last 24 hours const histPriceData = await w3d.market.getTokenPrices(BAT_CONTRACT, {startDate}) console.log({histPriceData}) // Watch for token price changes w3d.connect() w3d.on({eventName: 'market:prices', filters: { "pair": "bat_usd"}}, price => { const time = (new Date(price.timestamp)).toLocaleString() console.log(`Token price update ${price.price} at ${time}`) }) // Watch for tokens being traded on an exchange w3d.on({eventName: 'market:trades', filters: { "pair": "bat_usd"}}, ([trade]) => { const time = (new Date(trade[2])).toLocaleString() // Human readable timestamp const price = trade[5] const volume = trade[6] const type = trade[7] ? 'bought' : 'sold' console.log(`${volume} BAT ${type} for ${price} at ${time}`) })
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