Kucoin ExchangeError

Hello, i have this probllems with Kucoin. Stopped shopping through api.

ССXT version 1.22.44 Python 3.7

My error log:

Traceback (most recent call last):
  File "/app/singlebuy/task/trade.py", line 95, in pre_buy
    balances = exchange.fetchBalance()
  File "/usr/local/lib/python3.7/dist-packages/ccxt/kucoin.py", line 1355, in fetch_balance
    response = self.privateGetAccounts(self.extend(request, params))
  File "/usr/local/lib/python3.7/dist-packages/ccxt/base/exchange.py", line 440, in inner
    return entry(_self, **inner_kwargs)
  File "/usr/local/lib/python3.7/dist-packages/ccxt/base/exchange.py", line 463, in request
    return self.fetch2(path, api, method, params, headers, body)
  File "/usr/local/lib/python3.7/dist-packages/ccxt/base/exchange.py", line 459, in fetch2
    return self.fetch(request['url'], request['method'], request['headers'], request['body'])
  File "/usr/local/lib/python3.7/dist-packages/ccxt/base/exchange.py", line 574, in fetch
    raise ExchangeError(method + ' ' + url)
ccxt.base.errors.ExchangeError: GET https://openapi-v2.kucoin.com/api/v1/accounts

My function:

def pre_buy(self, buytask_id):
	"""Prepare buy: fetch task data, price and balance before"""
	try:
		buy_task = db.session.query(BuyTask.pair.label('pair'), BuyTask.amount.label('amount'),
									Exchange.exchange_id.label('exchange_id'), Exchange.user_id.label('user_id'),
									Exchange.name.label('exchange_name'), Exchange.key.label('key'),
									Exchange.secret.label('secret'), Exchange.password.label('password')).\
			select_from(BuyTask).\
			join(Exchange, BuyTask.exchange_id == Exchange.exchange_id).\
			filter(BuyTask.buytask_id == buytask_id, BuyTask.valid == True, Exchange.valid == True).\
			one()
	except NoResultFound:
		return
	except SQLAlchemyError as e:
		logger.exception('Retrive BuyTask')
		raise self.retry(exc=e)
 
	with Redis.from_url(current_app.config['REDIS_EXCHANGES_TICKER_URI']) as redis:
		tickers = redis.get(buy_task.exchange_name)
	if tickers is None:
		logger.warning('Not have ticker for exchange')
		raise self.retry()
	tickers = json.loads(tickers.decode())
	price = tickers.get(buy_task.pair, None)
	if price is None:
		logger.warning('Not have price for pair')
		raise self.retry()
   
	decoded_secret = fernet.decrypt(buy_task.secret.encode()).decode()  # Tryna decrypt all this stuff
	exchange = getattr(ccxt, buy_task.exchange_name)({'apiKey': buy_task.key,
													  'secret': decoded_secret,
													  'password': buy_task.password})
	try:
		balances = exchange.fetchBalance()
	except ccxt.AuthenticationError:
		invalid_text = 'Authentication error'
		signature('singlebuy.task.invalidate_exchange', app=self.app).delay(buy_task.exchange_id, invalid_text)
		return
	except Exception as e:
		logger.exception('Retrive balance')
		raise self.retry(exc=e)
	quote_name, base_name = buy_task.pair.split('/')
	quote = str(balances.get(quote_name, {}).get('total', 0.0))
	base = str(balances.get(base_name, {}).get('total', 0.0))
	actual_base = buy_task.amount
	signature('singlebuy.task.buy', app=self.app).delay(buytask_id, buy_task.user_id, buy_task.exchange_id,
														buy_task.exchange_name, buy_task.pair,
														buy_task.key, decoded_secret, buy_task.password,
														buy_task.amount, price, quote, base, actual_base)

Please help. Thanks

[rdbr]

Maybe this issue was forgotten because it was closed already? Just a friendly reminder. Thanks! 👍

[rdbr]

Check out this commit in the Kucoin API docs: https://github.com/Kucoin/kucoin-api-docs/commit/a76cb94a5d2ec93a8a46fb9ab298209263950640 So while CCXT does support v2 of the API, it doesn’t support v2 of the API Key. v2 needs a new header: KC-API-KEY-VERSION