为 Paypal 付款添加折扣

Posted 2023-02-22

【中文标题】为 Paypal 付款添加折扣

【英文标题】：Add discount to Paypal payment

【发布时间】：2020-04-04 02:59:22

【问题描述】：

我正在使用 Paypal php SDK（在 Laravel 中）准备付款。目前，该付款如下所示：

   "intent":"sale",
   "payer":
      "payment_method":"paypal"
   ,
   "redirect_urls":
      "return_url":"http://website.lab/payment/paypal/success",
      "cancel_url":"http://website.lab/payment/paypal/cancel"
   ,
   "transactions":[
      
         "amount":
            "currency":"EUR",
            "total":"223",
            "details":
               "shipping":"0",
               "subtotal":"273"
            
         ,
         "description":"...",
         "item_list":
            "items":[
               
                  "name":"product 8",
                  "currency":"EUR",
                  "quantity":21,
                  "sku":"w9",
                  "price":"13.00"
               
            ],
            "shipping_address":
               "city":"...",
               "postal_code":"...",
               "country_code":"...",
               "recipient_name":"...",
               "line1":"..."
            
         
      
   ]

如您所见，从总计到小计中缺少 50 欧元，这会导致此错误

400"name":"VALIDATION_ERROR","details":["field":"transactions[0].amount","issue":"Transaction amount details (subtotal, tax, shipping) must add up to specified amount total"],"message":"Invalid request - see details","information_link":"https://developer.paypal.com/docs/api/payments/#errors","debug_id":"91d27597e954"

现在查看 Paypal SDK 我找不到任何可以告诉 Paypal 为小计添加折扣的方法/对象。 任何帮助将不胜感激，我真的在网上找不到任何可以解决这个问题的资源

【问题讨论】：

您是否尝试在您的"item_list" 中添加一个对交易具有负值的项目？例如。 "name": "Discount", "price": "-50", "currency": "EUR", "quantity": "1"

哦，实际上不，谢谢，我会立即尝试@jibsteroos

@jibsteroos 它工作！啊哈，请发布一个答案，以便给你学分

很高兴听到，很高兴我能帮上忙！

【参考方案1】：

您可以向您的"item_list" 添加一个带有负值的项目到交易：

    "name": "Discount",
    "price": "-50",
    "currency": "EUR",
    "quantity": "1"