Add kucoin stoploss on exchange

freqtrade/exchange/kucoin.py

@@ -19,8 +19,27 @@ class Kucoin(Exchange):
     """
 
     _ft_has: Dict = {
+        "stoploss_on_exchange": True,
+        "stoploss_order_types": {"limit": "limit", "market": "market"},
         "l2_limit_range": [20, 100],
         "l2_limit_range_required": False,
         "order_time_in_force": ['gtc', 'fok', 'ioc'],
         "time_in_force_parameter": "timeInForce",
     }
+
+    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.
+        """
+        # TODO: since kucoin uses Limit orders, changes to models will be required.
+        return order['info']['stop'] is not None and stop_loss > float(order['stopPrice'])
+
+    def _get_stop_params(self, ordertype: str, stop_price: float) -> Dict:
+
+        params = self._params.copy()
+        params.update({
+            'stopPrice': stop_price,
+            'stop': 'loss'
+            })
+        return params