wiki/examples/js/ohlcv-console-chart.md
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 ()
}) ()