commit

docs/ccxt/examples/ccxt.pro/js/watch-new-trades-only.js

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+'use strict';
+
+const ccxt = require ('../../../ccxt');
+
+console.log ('CCXT Version:', ccxt.version);
+
+async function watchExchange (exchangeId, symbol) {
+
+     const exchange = new ccxt.pro[exchangeId] ({
+        newUpdates: true,
+    })
+
+    await exchange.loadMarkets ();
+
+    // exchange.verbose = true // uncomment for debugging purposes if necessary
+
+    while (true) {
+        try {
+            const trades = await exchange.watchTrades (symbol)
+            for (let i = 0; i < trades.length; i++) {
+                const trade = trades[i]
+                console.log (exchange.iso8601 (exchange.milliseconds ()), exchange.id, trade['symbol'], trade['id'], trade['datetime'], trade['price'], trade['amount'])
+            }
+        } catch (e) {
+            console.log (symbol, e)
+        }
+    }
+}
+
+async function main () {
+
+    const streams = {
+        'binance': 'BTC/USDT',
+        'okex': 'BTC/USDT',
+        'kraken': 'BTC/USD',
+    };
+
+    const values = Object.entries (streams)
+    const promises = values.map (([ exchangeId, symbol ]) => watchExchange (exchangeId, symbol))
+    await Promise.all (promises)
+}
+
+main ()