diff --git a/cmd/cart/pool-server.go b/cmd/cart/pool-server.go
index b3decaa..91498c7 100644
--- a/cmd/cart/pool-server.go
+++ b/cmd/cart/pool-server.go
@@ -726,26 +726,46 @@ func (s *PoolServer) CreateCheckoutOrderHandler(w http.ResponseWriter, r *http.R
 	return s.WriteResult(w, reply)
 }
 
+type SessionRequest struct {
+	SessionId     string `json:"sessionId"`
+	SessionResult string `json:"sessionResult"`
+	SessionData   string `json:"sessionData,omitempty"`
+}
+
 func (s *PoolServer) AdyenSessionHandler(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
 
 	grain, err := s.Get(r.Context(), uint64(cartId))
 	if err != nil {
 		return err
 	}
+	if r.Method == http.MethodGet {
+		meta := GetCheckoutMetaFromRequest(r)
+		sessionData, err := BuildAdyenCheckoutSession(grain, meta)
+		if err != nil {
+			return err
+		}
+		service := s.adyenClient.Checkout()
+		req := service.PaymentsApi.SessionsInput().CreateCheckoutSessionRequest(*sessionData)
+		res, _, err := service.PaymentsApi.Sessions(r.Context(), req)
+		// apply checkout started
+		if err != nil {
+			return err
+		}
+		return s.WriteResult(w, res)
+	} else {
+		payload := &SessionRequest{}
+		if err := json.NewDecoder(r.Body).Decode(payload); err != nil {
+			return err
+		}
+		service := s.adyenClient.Checkout()
+		req := service.PaymentsApi.GetResultOfPaymentSessionInput(payload.SessionId).SessionResult(payload.SessionResult)
+		res, _, err := service.PaymentsApi.GetResultOfPaymentSession(r.Context(), req)
+		if err != nil {
+			return err
+		}
+		return s.WriteResult(w, res)
+	}
 
-	meta := GetCheckoutMetaFromRequest(r)
-	sessionData, err := BuildAdyenCheckoutSession(grain, meta)
-	if err != nil {
-		return err
-	}
-	service := s.adyenClient.Checkout()
-	req := service.PaymentsApi.SessionsInput().CreateCheckoutSessionRequest(*sessionData)
-	res, _, err := service.PaymentsApi.Sessions(r.Context(), req)
-	// apply checkout started
-	if err != nil {
-		return err
-	}
-	return s.WriteResult(w, res)
 }
 
 func (s *PoolServer) AdyenHookHandler(w http.ResponseWriter, r *http.Request) {