diff --git a/cart-grain.go b/cart-grain.go
index 7d7f675..75a4a52 100644
--- a/cart-grain.go
+++ b/cart-grain.go
@@ -67,6 +67,7 @@ type CartGrain struct {
 	Items           []*CartItem     `json:"items"`
 	TotalPrice      int64           `json:"totalPrice"`
 	Deliveries      []*CartDelivery `json:"deliveries,omitempty"`
+	Processing      bool            `json:"processing"`
 }
 
 type Grain interface {
@@ -339,6 +340,13 @@ func (c *CartGrain) HandleMessage(message *Message, isReplay bool) (*FrameWithPa
 				Price:    49,
 				Items:    items,
 			})
+			c.Processing = true
+			go func() {
+				time.Sleep(5 * time.Second)
+				c.mu.Lock()
+				c.Processing = false
+				c.mu.Unlock()
+			}()
 		}
 	case RemoveDeliveryType:
 		msg, ok := message.Content.(*messages.RemoveDelivery)
diff --git a/pool-server.go b/pool-server.go
index e7f5db9..948ac75 100644
--- a/pool-server.go
+++ b/pool-server.go
@@ -115,11 +115,78 @@ func (s *PoolServer) HandleSetDelivery(w http.ResponseWriter, r *http.Request) e
 	return s.WriteResult(w, data)
 }
 
+func (s *PoolServer) HandleSetPickupPoint(w http.ResponseWriter, r *http.Request) error {
+	id := r.PathValue("id")
+	deliveryIdString := r.PathValue("deliveryId")
+	deliveryId, err := strconv.Atoi(deliveryIdString)
+	if err != nil {
+		return err
+	}
+	pickupPoint := messages.PickupPoint{}
+	err = json.NewDecoder(r.Body).Decode(&pickupPoint)
+	if err != nil {
+		return err
+	}
+	reply, err := s.pool.Process(ToCartId(id), Message{
+		Type: SetPickupPointType,
+		Content: &messages.SetPickupPoint{
+			DeliveryId: int64(deliveryId),
+			Id:         pickupPoint.Id,
+			Name:       pickupPoint.Name,
+			Address:    pickupPoint.Address,
+			City:       pickupPoint.City,
+			Zip:        pickupPoint.Zip,
+			Country:    pickupPoint.Country,
+		},
+	})
+	if err != nil {
+		return err
+	}
+	return s.WriteResult(w, reply)
+}
+
+func (s *PoolServer) HandleRemoveDelivery(w http.ResponseWriter, r *http.Request) error {
+	id := r.PathValue("id")
+	deliveryIdString := r.PathValue("deliveryId")
+	deliveryId, err := strconv.Atoi(deliveryIdString)
+	if err != nil {
+		return err
+	}
+	reply, err := s.pool.Process(ToCartId(id), Message{
+		Type:    RemoveDeliveryType,
+		Content: &messages.RemoveDelivery{Id: int64(deliveryId)},
+	})
+	if err != nil {
+		return err
+	}
+	return s.WriteResult(w, reply)
+}
+
+func (s *PoolServer) HandleQuantityChange(w http.ResponseWriter, r *http.Request) error {
+	id := r.PathValue("id")
+	itemIdString := r.PathValue("itemId")
+	itemId, err := strconv.Atoi(itemIdString)
+	if err != nil {
+		return err
+	}
+	reply, err := s.pool.Process(ToCartId(id), Message{
+		Type:    ChangeQuantityType,
+		Content: &messages.ChangeQuantity{Id: int64(itemId)},
+	})
+	if err != nil {
+		return err
+	}
+	return s.WriteResult(w, reply)
+}
+
 func (s *PoolServer) Serve() *http.ServeMux {
 	mux := http.NewServeMux()
 	mux.HandleFunc("GET /{id}", ErrorHandler(s.HandleGet))
 	mux.HandleFunc("GET /{id}/add/{sku}", ErrorHandler(s.HandleAddSku))
 	mux.HandleFunc("DELETE /{id}/{itemId}", ErrorHandler(s.HandleDeleteItem))
+	mux.HandleFunc("PUT /{id}/{itemId}", ErrorHandler(s.HandleQuantityChange))
 	mux.HandleFunc("POST /{id}/delivery", ErrorHandler(s.HandleSetDelivery))
+	mux.HandleFunc("DELETE /{id}/delivery/{deliveryId}", ErrorHandler(s.HandleRemoveDelivery))
+	mux.HandleFunc("PUT /{id}/delivery/{deliveryId}/pickupPoint", ErrorHandler(s.HandleSetPickupPoint))
 	return mux
 }