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Ohlcv Console Chart

wiki/examples/js/ohlcv-console-chart.md

4.5.521.0 KB
Original Source
javascript


import ccxt from '../../js/ccxt.js';
import asciichart from 'asciichart';
import asTable from 'as-table';
import ololog from 'ololog'
import ansicolor from 'ansicolor';

const log        = ololog.configure ({ locate: false })

ansicolor.nice

//-----------------------------------------------------------------------------

;(async function main () {

   // experimental, not yet implemented for all exchanges
   // your contributions are welcome ;)

   const indexOfClose = 4 // [ timestamp, open, high, low, close, volume ]
   const ohlcv = await new ccxt.cex ().fetchOHLCV ('BTC/USD', '1m')
   const lastPrice = ohlcv[ohlcv.length - 1][indexOfClose] // closing price
   const plotSeriesData = ohlcv.slice (-80).map (x => x[indexOfClose]) // closing price
   const bitcoinRate = ('₿ = $' + lastPrice).green
   const chart = asciichart.plot (plotSeriesData, { height: 15, padding: '            ' })
   log.yellow ("\n" + chart, bitcoinRate, "\n")
   process.exit ()

}) ()