+address book service

api/pkg/model/card.go

@@ -0,0 +1,25 @@
+package model
+
+import (
+	"fmt"
+
+	"github.com/tech/sendico/pkg/merrors"
+	"go.mongodb.org/mongo-driver/bson"
+)
+
+type CardPaymentData struct {
+	Pan       string `bson:"pan" json:"pan"`
+	FirstName string `bson:"firstName" json:"firstName"`
+	LastName  string `bson:"lastName" json:"lastName"`
+}
+
+func (m *PaymentMethod) AsCard() (*CardPaymentData, error) {
+	if m.Type != PaymentTypeCard {
+		return nil, merrors.InvalidArgument(fmt.Sprintf("payment method type is %s, not card", m.Type), "type")
+	}
+	var d CardPaymentData
+	if err := bson.Unmarshal(m.Data, &d); err != nil {
+		return nil, err
+	}
+	return &d, nil
+}