Cache tickers that don't exist

LaFouine25 · Jun 8, 2021 · dbdd052 · dbdd052
1 parent 80ef5fe
commit dbdd052
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Showing 2 changed files with 5 additions and 2 deletions.
diff --git a/binance_trade_bot/binance_api_manager.py b/binance_trade_bot/binance_api_manager.py
@@ -73,11 +73,13 @@ def get_ticker_price(self, ticker_symbol: str):
         Get ticker price of a specific coin
         """
         price = self.cache.ticker_values.get(ticker_symbol, None)
-        if price is None:
+        if price is None and ticker_symbol not in self.cache.non_existent_tickers:
             self.cache.ticker_values = {
                 ticker["symbol"]: float(ticker["price"]) for ticker in self.binance_client.get_symbol_ticker()
             }
             price = self.cache.ticker_values.get(ticker_symbol, None)
+            if price is None:
+                self.cache.non_existent_tickers.add(ticker_symbol)
 
         return price
 

diff --git a/binance_trade_bot/binance_stream_manager.py b/binance_trade_bot/binance_stream_manager.py
@@ -1,5 +1,5 @@
 import time
-from typing import Dict
+from typing import Dict, Set
 
 from autobahn.twisted.websocket import connectWS
 from binance.client import Client
@@ -33,6 +33,7 @@ def _start_socket(self, path, callback, prefix="ws/"):
 class BinanceCache:  # pylint: disable=too-few-public-methods
     ticker_values: Dict[str, float] = {}
     balances: Dict[str, float] = {}
+    non_existent_tickers: Set[str] = set()
 
 
 class BinanceStreamManager: