无需用户交互的PayPal支付方案咨询：寻找已弃用方法的替代选项

Hey there! Great question—since DoReference Transactions and Recurring Payments are no longer supported, PayPal offers two modern, reliable alternatives to handle on-demand, no-user-interaction payments after an initial user authorization:

1. PayPal Vault API (Best for On-Demand, One-Time Payments) #

This is the direct replacement for DoReference Transactions. It lets you securely store a user's PayPal account or card details after their first login/authorization, then use that stored payment source to initiate payments anytime without requiring the user to log in again.

How it works: #

• Step 1: Have the user complete an initial authorization flow (using PayPal's standard checkout UI) to grant permission for you to store their payment method.
• Step 2: Use the Vault API to save their payment source (you'll get a payment_source_id for future use).
• Step 3: When you need to charge the user later, create an Order via the REST API, specify the stored payment_source_id, and capture the payment—all without any user interaction.

Example code snippet (simplified): #

To create an order using a vaulted payment source:

curl -v -X POST https://api-m.sandbox.paypal.com/v2/checkout/orders \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -d '{
    "intent": "CAPTURE",
    "purchase_units": [
      {
        "amount": {
          "currency_code": "USD",
          "value": "10.00"
        },
        "payment_source": {
          "vault": {
            "id": "VAULTED_PAYMENT_SOURCE_ID"
          }
        }
      }
    ]
  }'

2. PayPal Subscriptions API (Best for Recurring or Scheduled Payments) #

If your use case involves recurring charges (even with occasional on-demand adjustments), the Subscriptions API replaces the old Recurring Payments. While it's designed for regular billing cycles, you can also add one-time "add-ons" to an active subscription without user interaction, as long as the initial subscription was authorized by the user.

Key features: #

• Set up fixed or flexible billing cycles (monthly, annual, custom intervals).
• Add one-time charges to an existing subscription for on-demand needs.
• Manage subscription statuses (pause, resume, cancel) programmatically.

Important Notes: #

• Both APIs require you to have a PayPal Business account and enable the necessary features in your PayPal Developer Dashboard.
• Always ensure you comply with PayPal's terms of service, especially regarding user consent for stored payment methods and recurring charges.

内容的提问来源于stack exchange，提问作者Michael Ebenstein