ハイブリッドモード、段階的コンポーネント書き換え、依存性注入更新を使用してAngularJSからAngularへ移行します。AngularJSアプリケーションのアップグレード、フレームワーク移行の計画、またはレガシーAngularコードのモダナイゼーション時に使用します。
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堅牢でPCI準拠の決済フロー(チェックアウト、サブスクリプション、Webhook)を含むStripe決済処理を実装します。Stripe決済の統合、サブスクリプションシステムの構築、安全なチェックアウトフローの実装時に使用します。
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English | 日本語
堅牢でPCI準拠の決済フロー(チェックアウト、サブスクリプション、Webhook、返金)を含むStripe決済処理統合をマスターします。
チェックアウトセッション(ホスト型)
ペイメントインテント(カスタムUI)
セットアップインテント(支払い方法の保存)
重要なイベント:
payment_intent.succeeded: 支払い完了payment_intent.payment_failed: 支払い失敗customer.subscription.updated: サブスクリプション変更customer.subscription.deleted: サブスクリプションキャンセルcharge.refunded: 返金処理済みinvoice.payment_succeeded: サブスクリプション支払い成功コンポーネント:
import stripe
stripe.api_key = "sk_test_..."
# Create a checkout session
session = stripe.checkout.Session.create(
payment_method_types=['card'],
line_items=[{
'price_data': {
'currency': 'usd',
'product_data': {
'name': 'Premium Subscription',
},
'unit_amount': 2000, # $20.00
'recurring': {
'interval': 'month',
},
},
'quantity': 1,
}],
mode='subscription',
success_url='https://yourdomain.com/success?session_id={CHECKOUT_SESSION_ID}',
cancel_url='https://yourdomain.com/cancel',
)
# Redirect user to session.url
print(session.url)
def create_checkout_session(amount, currency='usd'):
"""Create a one-time payment checkout session."""
try:
session = stripe.checkout.Session.create(
payment_method_types=['card'],
line_items=[{
'price_data': {
'currency': currency,
'product_data': {
'name': 'Purchase',
'images': ['https://example.com/product.jpg'],
},
'unit_amount': amount, # Amount in cents
},
'quantity': 1,
}],
mode='payment',
success_url='https://yourdomain.com/success?session_id={CHECKOUT_SESSION_ID}',
cancel_url='https://yourdomain.com/cancel',
metadata={
'order_id': 'order_123',
'user_id': 'user_456'
}
)
return session
except stripe.error.StripeError as e:
# Handle error
print(f"Stripe error: {e.user_message}")
raise
def create_payment_intent(amount, currency='usd', customer_id=None):
"""Create a payment intent for custom checkout UI."""
intent = stripe.PaymentIntent.create(
amount=amount,
currency=currency,
customer=customer_id,
automatic_payment_methods={
'enabled': True,
},
metadata={
'integration_check': 'accept_a_payment'
}
)
return intent.client_secret # Send to frontend
# Frontend (JavaScript)
"""
const stripe = Stripe('pk_test_...');
const elements = stripe.elements();
const cardElement = elements.create('card');
cardElement.mount('#card-element');
const {error, paymentIntent} = await stripe.confirmCardPayment(
clientSecret,
{
payment_method: {
card: cardElement,
billing_details: {
name: 'Customer Name'
}
}
}
);
if (error) {
// Handle error
} else if (paymentIntent.status === 'succeeded') {
// Payment successful
}
"""
def create_subscription(customer_id, price_id):
"""Create a subscription for a customer."""
try:
subscription = stripe.Subscription.create(
customer=customer_id,
items=[{'price': price_id}],
payment_behavior='default_incomplete',
payment_settings={'save_default_payment_method': 'on_subscription'},
expand=['latest_invoice.payment_intent'],
)
return {
'subscription_id': subscription.id,
'client_secret': subscription.latest_invoice.payment_intent.client_secret
}
except stripe.error.StripeError as e:
print(f"Subscription creation failed: {e}")
raise
def create_customer_portal_session(customer_id):
"""Create a portal session for customers to manage subscriptions."""
session = stripe.billing_portal.Session.create(
customer=customer_id,
return_url='https://yourdomain.com/account',
)
return session.url # Redirect customer here
from flask import Flask, request
import stripe
app = Flask(__name__)
endpoint_secret = 'whsec_...'
@app.route('/webhook', methods=['POST'])
def webhook():
payload = request.data
sig_header = request.headers.get('Stripe-Signature')
try:
event = stripe.Webhook.construct_event(
payload, sig_header, endpoint_secret
)
except ValueError:
# Invalid payload
return 'Invalid payload', 400
except stripe.error.SignatureVerificationError:
# Invalid signature
return 'Invalid signature', 400
# Handle the event
if event['type'] == 'payment_intent.succeeded':
payment_intent = event['data']['object']
handle_successful_payment(payment_intent)
elif event['type'] == 'payment_intent.payment_failed':
payment_intent = event['data']['object']
handle_failed_payment(payment_intent)
elif event['type'] == 'customer.subscription.deleted':
subscription = event['data']['object']
handle_subscription_canceled(subscription)
return 'Success', 200
def handle_successful_payment(payment_intent):
"""Process successful payment."""
customer_id = payment_intent.get('customer')
amount = payment_intent['amount']
metadata = payment_intent.get('metadata', {})
# Update your database
# Send confirmation email
# Fulfill order
print(f"Payment succeeded: {payment_intent['id']}")
def handle_failed_payment(payment_intent):
"""Handle failed payment."""
error = payment_intent.get('last_payment_error', {})
print(f"Payment failed: {error.get('message')}")
# Notify customer
# Update order status
def handle_subscription_canceled(subscription):
"""Handle subscription cancellation."""
customer_id = subscription['customer']
# Update user access
# Send cancellation email
print(f"Subscription canceled: {subscription['id']}")
import hashlib
import hmac
def verify_webhook_signature(payload, signature, secret):
"""Manually verify webhook signature."""
expected_sig = hmac.new(
secret.encode('utf-8'),
payload,
hashlib.sha256
).hexdigest()
return hmac.compare_digest(signature, expected_sig)
def handle_webhook_idempotently(event_id, handler):
"""Ensure webhook is processed exactly once."""
# Check if event already processed
if is_event_processed(event_id):
return
# Process event
try:
handler()
mark_event_processed(event_id)
except Exception as e:
log_error(e)
# Stripe will retry failed webhooks
raise
def create_customer(email, name, payment_method_id=None):
"""Create a Stripe customer."""
customer = stripe.Customer.create(
email=email,
name=name,
payment_method=payment_method_id,
invoice_settings={
'default_payment_method': payment_method_id
} if payment_method_id else None,
metadata={
'user_id': '12345'
}
)
return customer
def attach_payment_method(customer_id, payment_method_id):
"""Attach a payment method to a customer."""
stripe.PaymentMethod.attach(
payment_method_id,
customer=customer_id
)
# Set as default
stripe.Customer.modify(
customer_id,
invoice_settings={
'default_payment_method': payment_method_id
}
)
def list_customer_payment_methods(customer_id):
"""List all payment methods for a customer."""
payment_methods = stripe.PaymentMethod.list(
customer=customer_id,
type='card'
)
return payment_methods.data
def create_refund(payment_intent_id, amount=None, reason=None):
"""Create a refund."""
refund_params = {
'payment_intent': payment_intent_id
}
if amount:
refund_params['amount'] = amount # Partial refund
if reason:
refund_params['reason'] = reason # 'duplicate', 'fraudulent', 'requested_by_customer'
refund = stripe.Refund.create(**refund_params)
return refund
def handle_dispute(charge_id, evidence):
"""Update dispute with evidence."""
stripe.Dispute.modify(
charge_id,
evidence={
'customer_name': evidence.get('customer_name'),
'customer_email_address': evidence.get('customer_email'),
'shipping_documentation': evidence.get('shipping_proof'),
'customer_communication': evidence.get('communication'),
}
)
# Use test mode keys
stripe.api_key = "sk_test_..."
# Test card numbers
TEST_CARDS = {
'success': '4242424242424242',
'declined': '4000000000000002',
'3d_secure': '4000002500003155',
'insufficient_funds': '4000000000009995'
}
def test_payment_flow():
"""Test complete payment flow."""
# Create test customer
customer = stripe.Customer.create(
email="test@example.com"
)
# Create payment intent
intent = stripe.PaymentIntent.create(
amount=1000,
currency='usd',
customer=customer.id,
payment_method_types=['card']
)
# Confirm with test card
confirmed = stripe.PaymentIntent.confirm(
intent.id,
payment_method='pm_card_visa' # Test payment method
)
assert confirmed.status == 'succeeded'
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ハイブリッドモード、段階的コンポーネント書き換え、依存性注入更新を使用してAngularJSからAngularへ移行します。AngularJSアプリケーションのアップグレード、フレームワーク移行の計画、またはレガシーAngularコードのモダナイゼーション時に使用します。
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The English summary is being prepared. Showing the original description.