add MAX_ASK_PRICE to listing sniper to abort a sniping when the marke…

…t price already is above a given price

strategies/listing_sniper/listing_sniper.py

@@ -12,6 +12,8 @@
 # the order fill price can be higher than the computed one based on last stock data
 AMOUNT_TO_INVEST = 2000
 
+MAX_ASK_PRICE = 50 # If the price is already above MAX_ASK_PRICE, the sniping will be aborted
+
 # First take profit
 TP1_TARGET_PERCENTAGE = 500
 TP1_SIZE_RATIO = 0.3
@@ -25,7 +27,7 @@
 # TP3_SIZE_RATIO Will be filled with remaining position size
 
 # Stop loss
-SL_PERCENTAGE = 50
+SL_PERCENTAGE = 20
 
 
 class ListingSniper(Strategy):
@@ -67,6 +69,11 @@ def loop(self) -> None:
  raise Exception(f"Order computed size {order_size} is less than the minimum size "
  f"{m_response['minProvideSize']}")
 
+ if m_response["ask"] is not None and m_response["ask"] > MAX_ASK_PRICE:
+ self._sniped = True
+ logging.info(f"Sniping Aborted (price pumped too much) !")
+ return
+
  opening_order_params = {
  "market": MARKET_PAIR_TO_SNIPE,
  "side": "buy",