ftx: improve order cancel by client order id

pkg/exchange/ftx/exchange.go

@@ -556,28 +556,26 @@ func (e *Exchange) QueryClosedOrders(ctx context.Context, symbol string, since,
 	return orders, nil
 }
 
-func sortByCreatedASC(orders []order) {
-	sort.Slice(orders, func(i, j int) bool {
-		return orders[i].CreatedAt.Before(orders[j].CreatedAt.Time)
-	})
-}
-
 func (e *Exchange) CancelOrders(ctx context.Context, orders ...types.Order) error {
 	for _, o := range orders {
-		rest := e.newRest()
 		if err := requestLimit.Wait(ctx); err != nil {
 			logrus.WithError(err).Error("rate limit error")
 		}
+
 		if len(o.ClientOrderID) > 0 {
-			if _, err := rest.CancelOrderByClientID(ctx, o.ClientOrderID); err != nil {
+			req := e.client.NewCancelOrderByClientOrderIdRequest(o.ClientOrderID)
+			_, err := req.Do(ctx)
+			if err != nil {
 				return err
 			}
-			continue
-		}
-		if _, err := rest.CancelOrderByOrderID(ctx, o.OrderID); err != nil {
+		} else {
+			req := e.client.NewCancelOrderRequest(strconv.FormatUint(o.OrderID, 10))
+			_, err := req.Do(ctx)
+			if err != nil {
 				return err
 			}
 		}
+	}
 	return nil
 }
 

pkg/exchange/ftx/ftxapi/trade.go

@@ -106,6 +106,22 @@ func (c *RestClient) NewCancelAllOrderRequest() *CancelAllOrderRequest {
 	}
 }
 
+
+//go:generate requestgen -method DELETE -url "/api/orders/by_client_id/:clientOrderId" -type CancelOrderByClientOrderIdRequest -responseType .APIResponse
+type CancelOrderByClientOrderIdRequest struct {
+	client requestgen.AuthenticatedAPIClient
+	clientOrderId string `param:"clientOrderId,required,slug"`
+}
+
+func (c *RestClient) NewCancelOrderByClientOrderIdRequest(clientOrderId string) *CancelOrderByClientOrderIdRequest {
+	return &CancelOrderByClientOrderIdRequest{
+		client: c,
+		clientOrderId: clientOrderId,
+	}
+}
+
+
+
 type Fill struct {
 	Id            uint64           `json:"id"`
 	Future        string           `json:"future"`