commit

docs/ccxt/examples/js/exchanges-by-volume.js

@@ -0,0 +1,60 @@
+
+
+import ccxt from '../../js/ccxt.js';
+
+(async () => {
+
+    //     const exchanges = [
+    //         'bittrex',
+    //         'poloniex',
+    //         'bitfinex'
+    //     ]
+
+    const exchanges = ccxt.exchanges
+
+    const symbol = 'BTC/USDT'
+    const tickers = {}
+    const volumeField = 'baseVolume'
+
+    console.log ('-----------------------------------------------------------')
+
+    await Promise.all (exchanges.map (exchangeId =>
+
+        new Promise (async (resolve, reject) => {
+
+            try {
+
+                const exchange = new ccxt[exchangeId] ()
+
+                const ticker = await exchange.fetchTicker (symbol)
+
+                if (ticker[volumeField] !== undefined) {
+                    tickers[exchangeId] = ticker
+                }
+
+            } catch (e) {
+
+                console.log (exchangeId, e.message.slice (0, 100))
+            }
+
+            resolve ()
+
+        })
+
+    ))
+
+    console.log ('-----------------------------------------------------------')
+
+    console.log (Object
+        .keys (tickers)
+        .sort ((a, b) =>
+            ((tickers[a][volumeField] > tickers[b][volumeField]) ? 1 : ((tickers[a][volumeField] < tickers[b][volumeField]) ? -1 : 0)))
+        .reverse ()
+        .map (id => ({
+            id,
+            symbol,
+            'volume': tickers[id][volumeField],
+        }))
+    )
+
+}) ()