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docs/ccxt/examples/ts/fetch-tickers/src/index.ts

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+// Example code in typescript
+// Based on /examples/js/fetch-from-many-exchanges-simultaneously.js
+
+import * as ccxt from 'ccxt';
+const log = require('ololog');
+
+const symbol = 'BTC/USD';
+const exchanges = ['coinbasepro', 'gemini', 'kraken'];
+
+const fetchTickers = async (symbol: string) => {
+    const result = await Promise.all(exchanges.map(async (id: string): Promise<ccxt.Exchange> => {
+        const CCXT = ccxt as any; // Hack!
+        const exchange = new CCXT[id]({ 'enableRateLimit': true }) as ccxt.Exchange;
+        const ticker = await exchange.fetchTicker(symbol);
+        const exchangeExtended = exchange.extend({ 'exchange': id }, ticker) as ccxt.Exchange;
+        return exchangeExtended;
+    }));
+    log(result);
+};
+
+fetchTickers(symbol);