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79 lines
2.0 KiB
Markdown
79 lines
2.0 KiB
Markdown
- [Live Tickers](./examples/js/)
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```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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ansicolor.nice
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const { noLocate } = ololog;
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const log = noLocate;
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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)
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printSupportedExchanges ()
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}
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let printTickers = async (id) => {
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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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while (true) {
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const tickers = await exchange.fetchTickers ()
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log ('--------------------------------------------------------')
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log (exchange.id.green, exchange.iso8601 (exchange.milliseconds ()))
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log ('Fetched', Object.values (tickers).length.toString ().green, 'tickers:')
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log (asTable.configure ({ delimiter: ' | '.dim, right: true }) (
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ccxt.sortBy (Object.values (tickers), 'quoteVolume', true)
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.slice (0,20)
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.map (ticker => ({
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symbol: ticker['symbol'],
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price: ticker['last'].toFixed (8),
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datetime: ticker['datetime'],
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}))))
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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 > 2) {
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const id = process.argv[2]
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await printTickers (id)
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} else {
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printUsage ()
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}
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process.exit ()
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}) ()
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``` |