implement validate callback

cart-grain.go

@@ -515,6 +515,7 @@ func (c *CartGrain) HandleMessage(message *Message, isReplay bool) (*FrameWithPa
 					Terms:        msg.Terms,
 					Checkout:     msg.Checkout,
 					Confirmation: msg.Confirmation,
+					Validation:   msg.Validation,
 					Push:         msg.Push,
 				},
 			}
@@ -529,7 +530,7 @@ func (c *CartGrain) HandleMessage(message *Message, isReplay bool) (*FrameWithPa
 			} else {
 				klarnaOrder, err = KlarnaInstance.CreateOrder(bytes.NewReader(orderPayload))
 			}
-			log.Printf("Order result: %+v", klarnaOrder)
+			// log.Printf("Order result: %+v", klarnaOrder)
 			if nil != err {
 				log.Printf("error from klarna: %v", err)
 				return nil, err

klarna-types.go

@@ -33,6 +33,8 @@ type (
 		GUI                    *GUI                  `json:"gui,omitempty"`
 		MerchantRequested      *AdditionalCheckBox   `json:"merchant_requested,omitempty"`
 		SelectedShippingOption *ShippingOption       `json:"selected_shipping_option,omitempty"`
+		ErrorCode              string                `json:"error_code,omitempty"`
+		ErrorMessages          []string              `json:"error_messages,omitempty"`
 	}
 
 	// GUI type wraps the GUI options

main.go

@@ -220,6 +220,7 @@ func main() {
 					Terms:        "https://slask-finder.tornberg.me/terms",
 					Checkout:     "https://slask-finder.tornberg.me/checkout?order_id={checkout.order.id}",
 					Confirmation: "https://slask-finder.tornberg.me/confirmation/{checkout.order.id}",
+					Validation:   "https://cart.tornberg.me/validation",
 					Push:         "https://cart.tornberg.me/push?order_id={checkout.order.id}",
 				},
 			})
@@ -262,6 +263,31 @@ func main() {
 		w.WriteHeader(http.StatusOK)
 		w.Write([]byte(fmt.Sprintf(tpl, order.HTMLSnippet)))
 	})
+	mux.HandleFunc("/validate", func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != "POST" {
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			return
+		}
+		order := &CheckoutOrder{}
+		err := json.NewDecoder(r.Body).Decode(order)
+		if err != nil {
+			w.WriteHeader(http.StatusBadRequest)
+		}
+		err = confirmOrder(order, orderHandler)
+		if err != nil {
+			log.Printf("Error confirming order: %v\n", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		err = triggerOrderCompleted(err, syncedServer, order)
+		if err != nil {
+			log.Printf("Error processing cart message: %v\n", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+		w.WriteHeader(http.StatusOK)
+	})
 	mux.HandleFunc("/push", func(w http.ResponseWriter, r *http.Request) {
 
 		if r.Method != http.MethodPost {
@@ -276,39 +302,21 @@ func main() {
 		if err != nil {
 			log.Printf("Error creating request: %v\n", err)
 			w.WriteHeader(http.StatusInternalServerError)
-			w.Write([]byte(err.Error()))
 			return
 		}
 
-		orderToSend, err := json.Marshal(order)
+		err = confirmOrder(order, orderHandler)
 		if err != nil {
-			log.Printf("Error marshaling order: %v\n", err)
+			log.Printf("Error confirming order: %v\n", err)
-		} else {
+			w.WriteHeader(http.StatusInternalServerError)
-			err = orderHandler.Connect()
+			return
-			if err != nil {
-				log.Printf("Error connecting to order handler: %v\n", err)
-				w.WriteHeader(http.StatusInternalServerError)
-				w.Write([]byte(err.Error()))
-				return
-			}
-			defer orderHandler.Close()
-			err = orderHandler.OrderCompleted(orderToSend)
-			if err != nil {
-				log.Printf("Error sending order: %v\n", err)
-				w.WriteHeader(http.StatusInternalServerError)
-				w.Write([]byte(err.Error()))
-				return
-			}
 		}
-		_, err = syncedServer.pool.Process(ToCartId(order.MerchantReference1), Message{
+
-			Type: OrderCompletedType,
+		err = triggerOrderCompleted(err, syncedServer, order)
-			Content: &messages.OrderCreated{
-				OrderId: order.ID,
-				Status:  order.Status,
-			},
-		})
 		if err != nil {
 			log.Printf("Error processing cart message: %v\n", err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
 		}
 
 		w.WriteHeader(http.StatusOK)
@@ -334,3 +342,32 @@ func main() {
 	<-done
 
 }
+
+func triggerOrderCompleted(err error, syncedServer *PoolServer, order *CheckoutOrder) error {
+	_, err = syncedServer.pool.Process(ToCartId(order.MerchantReference1), Message{
+		Type: OrderCompletedType,
+		Content: &messages.OrderCreated{
+			OrderId: order.ID,
+			Status:  order.Status,
+		},
+	})
+	return err
+}
+
+func confirmOrder(order *CheckoutOrder, orderHandler *AmqpOrderHandler) error {
+	orderToSend, err := json.Marshal(order)
+	if err != nil {
+		return err
+	}
+	err = orderHandler.Connect()
+	if err != nil {
+		return err
+	}
+	defer orderHandler.Close()
+	err = orderHandler.OrderCompleted(orderToSend)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

proto/messages.pb.go

@@ -727,6 +727,7 @@ type CreateCheckoutOrder struct {
 	Checkout      string                 `protobuf:"bytes,2,opt,name=checkout,proto3" json:"checkout,omitempty"`
 	Confirmation  string                 `protobuf:"bytes,3,opt,name=confirmation,proto3" json:"confirmation,omitempty"`
 	Push          string                 `protobuf:"bytes,4,opt,name=push,proto3" json:"push,omitempty"`
+	Validation    string                 `protobuf:"bytes,5,opt,name=validation,proto3" json:"validation,omitempty"`
 	unknownFields protoimpl.UnknownFields
 	sizeCache     protoimpl.SizeCache
 }
@@ -789,6 +790,13 @@ func (x *CreateCheckoutOrder) GetPush() string {
 	return ""
 }
 
+func (x *CreateCheckoutOrder) GetValidation() string {
+	if x != nil {
+		return x.Validation
+	}
+	return ""
+}
+
 type OrderCreated struct {
 	state         protoimpl.MessageState `protogen:"open.v1"`
 	OrderId       string                 `protobuf:"bytes,1,opt,name=orderId,proto3" json:"orderId,omitempty"`
@@ -941,20 +949,23 @@ var file_messages_proto_rawDesc = string([]byte{
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+	0x33,
 })
 
 var (

proto/messages.proto

@@ -81,6 +81,7 @@ message CreateCheckoutOrder {
 	string checkout = 2;
 	string confirmation = 3;
 	string push = 4;
+	string validation = 5;
 }
 
 message OrderCreated {