贝宝Restapi更新支付的项目

Question

我使用贝宝rest api支付资源来更新付款金额和项目信息；我只是想改变项目的价格和税收；和运费金额；但返回MALFORMED_REQUEST；让我喝醉...

request_data是：

 {
    "op": "replace",
    "path": "/transactions/0/item_list/items/0",
    "value": {
      "name": "hello",
      "quantity": "2",
      "price": "100",
      "currency": "USD",
      "tax": "12"
    }
  },
  {
    "op": "replace",
    "path": "/transactions/0/amount",
    "value": {
      "currency": "USD",
      "total": "224",
      "details": {
        "shipping": "12",
        "subtotal": "200",
        "tax": "12"
      }
    }
  }

并返回：{"name"："MALFORMED_REQUEST"，"消息"："MALFORMED_REQUEST"，"information_link"："https://developer.paypal.com/docs/api/#MALFORMED_REQUEST"，"debug_id"："78c05f9b4f21"}

我希望确保：
1、可以使用paypal更新付款的项目信息
2、路径是否为“/transactions/0/item\u list/items/0”正确
非常感谢！

Answer 1

我正在使用PayPal Java SDK，并使用下面的代码更新购物车项目和总价值。

APIContext context = new APIContext(clientId,clientSecret,environment);

List<Patch> patches = new ArrayList<Patch>();

Amount amount = new Amount();
amount.setCurrency("BRL");
amount.setTotal("100.00");

Patch patch1 = new Patch();
patch1.setOp("replace").setPath("/transactions/0/amount").setValue(amount);

patches.add(patch1);

ItemList items = getItens(order);

Patch patch2 = new Patch();
        patch2.setOp("replace").setPath("/transactions/0/item_list").setValue(items);

patches.add(patch2);

try {

    Payment payment = Payment.get(context, id);

    payment.update(context, patches);

    ...
} ....