ftx: cancel orders

pkg/exchange/ftx/exchange.go

@@ -161,7 +161,19 @@ func (e *Exchange) QueryClosedOrders(ctx context.Context, symbol string, since,
 }
 
 func (e *Exchange) CancelOrders(ctx context.Context, orders ...types.Order) error {
-	panic("implement me")
+	for _, o := range orders {
+		rest := e.newRest()
+		if len(o.ClientOrderID) > 0 {
+			if _, err := rest.CancelOrderByClientID(ctx, o.ClientOrderID); err != nil {
+				return err
+			}
+			continue
+		}
+		if _, err := rest.CancelOrderByOrderID(ctx, o.OrderID); err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
 func (e *Exchange) QueryTicker(ctx context.Context, symbol string) (*types.Ticker, error) {

pkg/exchange/ftx/rest_order_request.go

@@ -62,6 +62,39 @@ func (r *orderRequest) PlaceOrder(ctx context.Context, p PlaceOrderPayload) (ord
 
 	return o, nil
 }
+func (r *orderRequest) CancelOrderByOrderID(ctx context.Context, orderID uint64) (cancelOrderResponse, error) {
+	resp, err := r.
+		Method("DELETE").
+		ReferenceURL("api/orders").
+		Payloads(map[string]interface{}{"order_id": orderID}).
+		DoAuthenticatedRequest(ctx)
+	if err != nil {
+		return cancelOrderResponse{}, err
+	}
+
+	var co cancelOrderResponse
+	if err := json.Unmarshal(resp.Body, &r); err != nil {
+		return cancelOrderResponse{}, err
+	}
+	return co, nil
+}
+
+func (r *orderRequest) CancelOrderByClientID(ctx context.Context, clientID string) (cancelOrderResponse, error) {
+	resp, err := r.
+		Method("DELETE").
+		ReferenceURL("api/orders/by_client_id").
+		Payloads(map[string]interface{}{"client_order_id": clientID}).
+		DoAuthenticatedRequest(ctx)
+	if err != nil {
+		return cancelOrderResponse{}, err
+	}
+
+	var co cancelOrderResponse
+	if err := json.Unmarshal(resp.Body, &r); err != nil {
+		return cancelOrderResponse{}, err
+	}
+	return co, nil
+}
 
 func (r *orderRequest) OpenOrders(ctx context.Context, market string) (ordersResponse, error) {
 	resp, err := r.

pkg/exchange/ftx/rest_responses.go

@@ -3,7 +3,7 @@ package ftx
 import "time"
 
 type balances struct {
-	Success bool `json:"Success"`
+	Success bool `json:"success"`
 
 	Result []struct {
 		Coin  string  `json:"coin"`
@@ -13,11 +13,16 @@ type balances struct {
 }
 
 type ordersResponse struct {
-	Success bool `json:"Success"`
+	Success bool `json:"success"`
 
 	Result []order `json:"result"`
 }
 
+type cancelOrderResponse struct {
+	Success bool   `json:"success"`
+	Result  string `json:"result"`
+}
+
 type order struct {
 	CreatedAt  time.Time `json:"createdAt"`
 	FilledSize float64   `json:"filledSize"`
@@ -39,7 +44,7 @@ type order struct {
 }
 
 type orderResponse struct {
-	Success bool `json:"Success"`
+	Success bool `json:"success"`
 
 	Result order `json:"result"`
 }