commit

docs/ccxt/examples/ccxt.pro/py/watch-all-symbols.py

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+# -*- coding: utf-8 -*-
+
+import asyncio
+import ccxt.pro
+
+
+async def loop(exchange, symbol, n):
+    i = 0
+    while True:
+        try:
+            orderbook = await exchange.watch_order_book(symbol)
+            # print every 100th bidask to avoid wasting CPU cycles on printing
+            if not i % 100:
+                # i = how many updates there were in total
+                # n = the number of the pair to count subscriptions
+                now = exchange.milliseconds()
+                print(exchange.iso8601(now), n, symbol, i, orderbook['asks'][0], orderbook['bids'][0])
+            i += 1
+        except Exception as e:
+            print(str(e))
+            # raise e  # uncomment to break all loops in case of an error in any one of them
+            # break  # you can also break just this one loop if it fails
+
+
+async def main():
+    exchange = ccxt.pro.kraken()
+    await exchange.load_markets()
+    markets = list(exchange.markets.values())
+    symbols = [market['symbol'] for market in markets if not market['darkpool']]
+    await asyncio.gather(*[loop(exchange, symbol, n) for n, symbol in enumerate(symbols)])
+    await exchange.close()
+
+
+
+asyncio.run(main())