mirror of
https://github.com/discountry/ritmex-bot.git
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106 lines
3.0 KiB
JavaScript
106 lines
3.0 KiB
JavaScript
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import asTable from 'as-table';
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import ololog from 'ololog';
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import ansicolor from 'ansicolor';
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import ccxt from '../../js/ccxt.js';
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const { noLocate } = ololog;
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const log = noLocate;
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ansicolor.nice
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let printSupportedExchanges = function () {
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log ('Supported exchanges:', ccxt.exchanges.join (', ').green)
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}
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let printUsage = function () {
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log ('Usage: node', process.argv[1], 'exchange'.green, 'symbol'.yellow, 'depth'.cyan)
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printSupportedExchanges ()
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}
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let printOrderBook = async (id, symbol, depth) => {
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// check if the exchange is supported by ccxt
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let exchangeFound = ccxt.exchanges.indexOf (id) > -1
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if (exchangeFound) {
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log ('Instantiating', id.green, 'exchange')
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// instantiate the exchange by id
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let exchange = new ccxt[id] ()
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// load all markets from the exchange
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let markets = await exchange.loadMarkets ()
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// output a list of all market symbols
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// log (id.green, 'has', exchange.symbols.length, 'symbols:', exchange.symbols.join (', ').yellow)
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if (symbol in exchange.markets) {
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const market = exchange.markets[symbol]
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const pricePrecision = market.precision ? market.precision.price : 8
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const amountPrecision = market.precision ? market.precision.amount : 8
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// Object.values (markets).forEach (market => log (market))
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// make a table of all markets
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// const table = asTable.configure ({ delimiter: ' | ' }) (Object.values (markets))
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// log (table)
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const priceVolumeHelper = color => ([price, amount]) => ({
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price: price.toFixed (pricePrecision)[color],
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amount: amount.toFixed (amountPrecision)[color],
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' ': ' ',
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})
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const cursorUp = '\u001b[1A'
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const tableHeight = depth * 2 + 4 // bids + asks + headers
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log (' ') // empty line
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while (true) {
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const orderbook = await exchange.fetchOrderBook (symbol)
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log (symbol.green, exchange.iso8601 (exchange.milliseconds ()))
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log (asTable.configure ({ delimiter: ' | '.dim, right: true }) ([
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... orderbook.asks.slice (0, depth).reverse ().map (priceVolumeHelper ('red')),
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// { price: '--------'.dim, amount: '--------'.dim },
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... orderbook.bids.slice (0, depth).map (priceVolumeHelper ('green')),
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]))
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log (cursorUp.repeat (tableHeight))
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}
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} else {
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log.error ('Symbol', symbol.bright, 'not found')
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}
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} else {
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log ('Exchange ' + id.red + ' not found')
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printSupportedExchanges ()
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}
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}
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;(async function main () {
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if (process.argv.length > 4) {
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const id = process.argv[2]
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const symbol = process.argv[3].toUpperCase ()
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const depth = parseInt (process.argv[4])
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await printOrderBook (id, symbol, depth)
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} else {
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printUsage ()
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}
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process.exit ()
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}) () |