PayPal Smart Subscribe server side

问题

hello in trying to convert my PayPal smart subscription button javascript into the server-side particularly on PHP. But I keep looking online and PayPal documentation still can't find and sources. It is similar to this PayPal demo of server-side.

<div id="paypal-button-container"></div>
    <script src="https://www.paypal.com/sdk/js?client-id=Subscription_id&vault=true" data-sdk-integration-source="button-factory"></script>
    <script>
      paypal.Buttons({
          style: {
              shape: 'rect',
              color: 'gold',
              layout: 'horizontal',
              label: 'subscribe'
          },
          createSubscription: function(data, actions) {
            return actions.subscription.create({
              'plan_id': 'Plan_id'
            });
          },
          onApprove: function(data, actions) {
            alert(data.subscriptionID);
          }
      }).render('#paypal-button-container');
    </script>

回答1:

I'm not aware of a demo sample, but the createSubscription portion can be be done via this API call: https://developer.paypal.com/docs/api/subscriptions/v1/#subscriptions_create

You can change the application_context -> user_action value to something other than SUBSCRIBE_NOW if you don't want PayPal to automatically activate the subscription.

Then you'll need this API call to activate the subscription: https://developer.paypal.com/docs/api/subscriptions/v1/#subscriptions_activate

In order to trigger these two API calls you'll want fetch commands to two routes on your server, from createSubscription and onApprove respectively (similar to the one time checkout demo you linked to)

来源：https://stackoverflow.com/questions/63899329/paypal-smart-subscribe-server-side