购买与 Stripe Checkout

1// Persist the complete input and requestId before previewing.2const { quote } = await indiana.previewAttach({3  customerId: verifiedCustomer.id,4  requestId: retainedRequestId,5  plans: [{ productVersionId: selectedProductId }],6  provider: "stripe", currency: "USD",7  // offerId: heldCouponGrantId,8});9// Show quote and obtain explicit customer confirmation before attach.10const { operation } = await indiana.attach({11  customerId: verifiedCustomer.id, operationId: quote.operationId,12});13if (operation.status === "complete") {14  await refreshCustomerHoldings();15} else if (operation.checkoutUrl) {16  return { checkoutUrl: operation.checkoutUrl };17} else if (operation.executor === "merchant" && operation.execution) {18  // Execute only on your backend using the original operation instructions.19  return await executeMerchantCheckout(operation);20}21// After returning from checkout, read the original operation; do not create another.22await indiana.readSubscriptionOperation({23  customerId: verifiedCustomer.id, operationId: quote.operationId,24});

1// Re-read this operation on your backend for the authenticated Customer.2// stripe is your server-only Stripe client for execution.accountId.3const execution = operation.execution;4if (operation.executor !== "merchant" || !execution) throw new Error("Wrong executor");5if (execution.lineItems.some((item) => !item.price)) throw new Error("Price binding missing");6const cardless = quote.lines.some((line) => line.trial && !line.trial.cardRequired);7const session = await stripe.checkout.sessions.create({8  mode: execution.mode,9  ...(quote.automaticTax ? { automatic_tax: { enabled: true } } : {}),10  line_items: execution.lineItems.map(({ price, quantity }) => ({ price: price!, quantity })),11  discounts: execution.discounts.map(({ coupon }) => ({ coupon })),12  metadata: execution.metadata,13  client_reference_id: operation.operationId,14  expires_at: Math.floor(Date.parse(execution.expiresAt) / 1000),15  success_url: configuredReturnUrl,16  cancel_url: configuredReturnUrl,17  ...(execution.mode === "subscription"18    ? { subscription_data: {19        metadata: execution.metadata,20        ...(execution.trialPeriodDays ? { trial_period_days: execution.trialPeriodDays } : {}),21        ...(cardless ? { trial_settings: { end_behavior: { missing_payment_method: "cancel" } } } : {}),22      }, ...(cardless ? { payment_method_collection: "if_required" } : {}) }23    : { invoice_creation: { enabled: true, invoice_data: { metadata: execution.metadata } },24        payment_intent_data: { metadata: execution.metadata } }),25}, { idempotencyKey: `checkout:${operation.operationId}` });26return { checkoutUrl: session.url };