贝宝付款REST API更新付款以添加商品

Question

I'm trying to add a second Item to a created payment via a PatchRequest but can't seem to figure it out.

Here is my code:

$patch = new \PayPal\Api\Patch();
$patch->setOp('add');
$patch->setPath('/transactions/0/item_list/items/1');
$json = '
    {
        "description":"Testartikel",
        "price":"50.00",
        "currency":"EUR",
        "quantity":1
    }';
$data = json_decode($json);
$patch->setValue($data);
$patches[] = $patch;
$patchRequest = new \PayPal\Api\PatchRequest();
$patchRequest->setPatches($patches);
$payment->update($patchRequest, $apiContext);

So the request looks like this:

[{"op":"add","path":"/transactions/0/item_list/items/1","value":{"description":"Testartikel","price":"50.00","currency":"EUR","quantity":1}}]

I get this error:

{"name":"MALFORMED_REQUEST","message":"MALFORMED_REQUEST","information_link":"https://developer.paypal.com/docs/api/#MALFORMED_REQUEST","debug_id":"682441321797"}

I guess the path /transactions/0/item_list/items/1 might be wrong but i couldn't figure out what would be the correct one. I already tried /transactions/0/item_list and /transactions/0/item_list/items with the same result.

Any help would be very much appreciated.

Answer 1

I had the same Error Message.

The Problem were the missing square brackets round the JSON.

The right path is '/transactions/0/item_list/items'.

$json = '
[
  {
    "description":"Testartikel",
    "price":"50.00",
    "currency":"EUR",
    "quantity":1
  }
]';

$patchAdd = new \PayPal\Api\Patch();
$patchAdd->setOp('add')
    ->setPath('/transactions/0/item_list/items')
    ->setValue(json_decode($json));

$patchRequest = new \PayPal\Api\PatchRequest();
$patchRequest->setPatches(array($patchAdd);

This worked for me.