Merge pull request #6513 from samgermain/gateio-stoploss

Gateio stoploss on exchange

freqtrade/exchange/exchange.py

@@ -376,7 +376,7 @@ class Exchange:
             raise OperationalException(
                 'Could not load markets, therefore cannot start. '
                 'Please investigate the above error for more details.'
-                )
+            )
         quote_currencies = self.get_quote_currencies()
         if stake_currency not in quote_currencies:
             raise OperationalException(
@@ -882,11 +882,11 @@ class Exchange:
             raise OperationalException(e) from e
 
     @retrier(retries=API_FETCH_ORDER_RETRY_COUNT)
-    def fetch_order(self, order_id: str, pair: str) -> Dict:
+    def fetch_order(self, order_id: str, pair: str, params={}) -> Dict:
         if self._config['dry_run']:
             return self.fetch_dry_run_order(order_id)
         try:
-            order = self._api.fetch_order(order_id, pair)
+            order = self._api.fetch_order(order_id, pair, params=params)
             self._log_exchange_response('fetch_order', order)
             return order
         except ccxt.OrderNotFound as e:
@@ -929,7 +929,7 @@ class Exchange:
                 and order.get('filled') == 0.0)
 
     @retrier
-    def cancel_order(self, order_id: str, pair: str) -> Dict:
+    def cancel_order(self, order_id: str, pair: str, params={}) -> Dict:
         if self._config['dry_run']:
             try:
                 order = self.fetch_dry_run_order(order_id)
@@ -940,7 +940,7 @@ class Exchange:
                 return {}
 
         try:
-            order = self._api.cancel_order(order_id, pair)
+            order = self._api.cancel_order(order_id, pair, params=params)
             self._log_exchange_response('cancel_order', order)
             return order
         except ccxt.InvalidOrder as e:

freqtrade/exchange/gateio.py

@@ -22,6 +22,8 @@ class Gateio(Exchange):
     _ft_has: Dict = {
         "ohlcv_candle_limit": 1000,
         "ohlcv_volume_currency": "quote",
+        "stoploss_order_types": {"limit": "limit"},
+        "stoploss_on_exchange": True,
     }
 
     _headers = {'X-Gate-Channel-Id': 'freqtrade'}
@@ -31,4 +33,25 @@ class Gateio(Exchange):
 
         if any(v == 'market' for k, v in order_types.items()):
             raise OperationalException(
-                    f'Exchange {self.name} does not support market orders.')
+                f'Exchange {self.name} does not support market orders.')
+
+    def fetch_stoploss_order(self, order_id: str, pair: str, params={}) -> Dict:
+        return self.fetch_order(
+            order_id=order_id,
+            pair=pair,
+            params={'stop': True}
+        )
+
+    def cancel_stoploss_order(self, order_id: str, pair: str, params={}) -> Dict:
+        return self.cancel_order(
+            order_id=order_id,
+            pair=pair,
+            params={'stop': True}
+        )
+
+    def stoploss_adjust(self, stop_loss: float, order: Dict) -> bool:
+        """
+        Verify stop_loss against stoploss-order value (limit or price)
+        Returns True if adjustment is necessary.
+        """
+        return stop_loss > float(order['stopPrice'])