Async Binance Fetch Ticker Continuously

# -*- coding: utf-8 -*-

import asyncio
import os
import sys


import ccxt.async_support as ccxt  # noqa: E402


async def main(symbol):
   # you can set enableRateLimit = True to enable the built-in rate limiter
   # this way you request rate will never hit the limit of an exchange
   # the library will throttle your requests to avoid that

   exchange = ccxt.binance()
   while True:
       print('--------------------------------------------------------------')
       print(exchange.iso8601(exchange.milliseconds()), 'fetching', symbol, 'ticker from', exchange.name)
       # this can be any call instead of fetch_ticker, really
       try:
           ticker = await exchange.fetch_ticker(symbol)
           print(exchange.iso8601(exchange.milliseconds()), 'fetched', symbol, 'ticker from', exchange.name)
           print(ticker)
       except ccxt.RequestTimeout as e:
           print('[' + type(e).__name__ + ']')
           print(str(e)[0:200])
           # will retry
       except ccxt.DDoSProtection as e:
           print('[' + type(e).__name__ + ']')
           print(str(e.args)[0:200])
           # will retry
       except ccxt.ExchangeNotAvailable as e:
           print('[' + type(e).__name__ + ']')
           print(str(e.args)[0:200])
           # will retry
       except ccxt.ExchangeError as e:
           print('[' + type(e).__name__ + ']')
           print(str(e)[0:200])
           break  # won't retry


asyncio.run(main('BTC/USDT'))