[credit card] implement payment

uncloud_pay/serializers.py

@@ -4,17 +4,33 @@ from uncloud_auth.serializers import UserSerializer
 from django.utils.translation import gettext_lazy as _
 
 from .models import *
+import uncloud_pay.stripe as uncloud_stripe
 
 ###
 # 2020-12 Checked code
 
-
 class StripeCreditCardSerializer(serializers.ModelSerializer):
     class Meta:
         model = StripeCreditCard
-        exclude = ['card_id', "owner" ]
+        exclude = [ "card_id", "owner" ]
         read_only_fields = [ "last4", "brand", "expiry_date" ]
 
+class PaymentSerializer(serializers.ModelSerializer):
+    owner = serializers.HiddenField(default=serializers.CurrentUserDefault())
+
+    class Meta:
+        model = Payment
+        fields = '__all__'
+        read_only_fields = [ "external_reference", "source", "timestamp" ]
+
+    def validate(self, data):
+        payment_intent = uncloud_stripe.charge_customer(data['owner'],
+                                                        data['amount'])
+
+        data["external_reference"] = payment_intent["id"]
+        data["source"] = "stripe"
+
+        return data
 
 
 ################################################################################
@@ -23,10 +39,6 @@ class StripeCreditCardSerializer(serializers.ModelSerializer):
 ###
 # Payments and Payment Methods.
 
-class PaymentSerializer(serializers.ModelSerializer):
-    class Meta:
-        model = Payment
-        fields = '__all__'
 
 class UpdatePaymentMethodSerializer(serializers.ModelSerializer):
     class Meta: