commit

docs/ccxt/examples/ccxt.pro/js/watch-many-orderbooks.js

@@ -0,0 +1,27 @@
+'use strict';
+
+const ccxt = require ('ccxt');
+
+async function watchOrderBook (exchangeId, symbol) {
+
+     const exchange = new ccxt.pro[exchangeId] ()
+    while (true) {
+        try {
+            const orderbook = await exchange.watchOrderBook (symbol)
+            console.log (new Date (), exchange.id, symbol, orderbook['asks'][0], orderbook['bids'][0])
+        } catch (e) {
+            console.log (symbol, e)
+        }
+    }
+}
+
+async function main () {
+    const streams = {
+        'binance': 'BTC/USDT',
+        'ftx': 'BTC/USDT',
+    };
+
+    await Promise.all (Object.entries (streams).map (([ exchangeId, symbol ]) => watchOrderBook (exchangeId, symbol)))
+}
+
+main()