async def handle_recent_trades_update(self, exchange: str, exchange_id: str,
cryptocurrency: str, symbol: str, recent_trades: list):
"""
Recent trades channel consumer callback
"""
try:
mark_price = calculate_mark_price_from_recent_trade_prices(
[float(last_price[ExchangeConstantsOrderColumns.PRICE.value])
for last_price in recent_trades])
await self.push(symbol, mark_price)
except Exception as e:
self.logger.exception(e, True, f"Fail to handle recent trades update : {e}")
async def test_calculate_mark_price_from_recent_trade_prices():
assert calculate_mark_price_from_recent_trade_prices(
[10, 5, 7]) == 7.333333333333333
assert calculate_mark_price_from_recent_trade_prices([10, 20]) == 15
assert calculate_mark_price_from_recent_trade_prices([]) == 0