feat: add adjust_order_price callback

freqtrade/strategy/interface.py

@@ -690,6 +690,103 @@ class IStrategy(ABC, HyperStrategyMixin):
         """
         return current_order_rate
 
+    def adjust_exit_price(
+        self,
+        trade: Trade,
+        order: Order | None,
+        pair: str,
+        current_time: datetime,
+        proposed_rate: float,
+        current_order_rate: float,
+        entry_tag: str | None,
+        side: str,
+        **kwargs,
+    ) -> float:
+        """
+        Exit price re-adjustment logic, returning the user desired limit price.
+        This only executes when a order was already placed, still open (unfilled fully or partially)
+        and not timed out on subsequent candles after entry trigger.
+
+        For full documentation please go to https://www.freqtrade.io/en/latest/strategy-callbacks/
+
+        When not implemented by a strategy, returns current_order_rate as default.
+        If current_order_rate is returned then the existing order is maintained.
+        If None is returned then order gets canceled but not replaced by a new one.
+
+        :param pair: Pair that's currently analyzed
+        :param trade: Trade object.
+        :param order: Order object
+        :param current_time: datetime object, containing the current datetime
+        :param proposed_rate: Rate, calculated based on pricing settings in entry_pricing.
+        :param current_order_rate: Rate of the existing order in place.
+        :param entry_tag: Optional entry_tag (buy_tag) if provided with the buy signal.
+        :param side: 'long' or 'short' - indicating the direction of the proposed trade
+        :param **kwargs: Ensure to keep this here so updates to this won't break your strategy.
+        :return float: New entry price value if provided
+
+        """
+        return current_order_rate
+
+    def adjust_order_price(
+        self,
+        trade: Trade,
+        order: Order | None,
+        pair: str,
+        current_time: datetime,
+        proposed_rate: float,
+        current_order_rate: float,
+        entry_tag: str | None,
+        side: str,
+        **kwargs,
+    ) -> float:
+        """
+        Exit and entry order price re-adjustment logic, returning the user desired limit price.
+        This only executes when a order was already placed, still open (unfilled fully or partially)
+        and not timed out on subsequent candles after entry trigger.
+
+        For full documentation please go to https://www.freqtrade.io/en/latest/strategy-callbacks/
+
+        When not implemented by a strategy, returns current_order_rate as default.
+        If current_order_rate is returned then the existing order is maintained.
+        If None is returned then order gets canceled but not replaced by a new one.
+
+        :param pair: Pair that's currently analyzed
+        :param trade: Trade object.
+        :param order: Order object
+        :param current_time: datetime object, containing the current datetime
+        :param proposed_rate: Rate, calculated based on pricing settings in entry_pricing.
+        :param current_order_rate: Rate of the existing order in place.
+        :param entry_tag: Optional entry_tag (buy_tag) if provided with the buy signal.
+        :param side: 'long' or 'short' - indicating the direction of the proposed trade
+        :param **kwargs: Ensure to keep this here so updates to this won't break your strategy.
+        :return float: New entry price value if provided
+
+        """
+        if order.side == trade.entry_side:
+            return self.adjust_entry_price(
+                trade=trade,
+                order=order,
+                pair=pair,
+                current_time=current_time,
+                proposed_rate=proposed_rate,
+                current_order_rate=current_order_rate,
+                entry_tag=entry_tag,
+                side=side,
+                **kwargs,
+            )
+        else:
+            return self.adjust_exit_price(
+                trade=trade,
+                order=order,
+                pair=pair,
+                current_time=current_time,
+                proposed_rate=proposed_rate,
+                current_order_rate=current_order_rate,
+                entry_tag=entry_tag,
+                side=side,
+                **kwargs,
+            )
+
     def leverage(
         self,
         pair: str,