Implement closing all positions

core/exchanges/oanda.py

@@ -151,10 +151,17 @@ class OANDAExchange(BaseExchange):
         return response
 
     def close_all_positions(self):
-        # all_positions = self.get_all_positions()
-
-        # for position in all_positions["itemlist"]:
-        #     print("POS ITER", position)
-        r = positions.PositionClose(accountID=self.account_id)
-        response = self.call(r)
-        return response
+        all_positions = self.get_all_positions()
+        responses = []
+        for position in all_positions:
+            side = position["side"]
+            symbol = position["symbol"]
+            data = {
+                f"{side}Units": "ALL",
+            }
+            r = positions.PositionClose(
+                accountID=self.account_id, instrument=symbol, data=data
+            )
+            response = self.call(r)
+            responses.append(response)
+        return responses