礼品卡绑定
交给云平台自动完成

# 创建绑卡任务
curl -X POST https://api.yunbangka.com/v1/cards/bind \
  -H "X-App-Key: bk_live_9f2c****" \
  -H "X-Timestamp: 1760860800" \
  -H "X-Sign: 3f9a1c****" \
  -H "Content-Type: application/json" \
  -d '{
    "requestId": "20261019-0001",
    "cardType": "JD",
    "cardNo": "1000****8888",
    "cardPwd": "******",
    "accountId": "acc_1024"
  }'

$payload = [
  'requestId' => '20261019-0001',
  'cardType'  => 'JD',
  'cardNo'    => '1000****8888',
  'cardPwd'   => '******',
  'accountId' => 'acc_1024',
];
$body = json_encode($payload, JSON_UNESCAPED_UNICODE);
$sign = hash_hmac('sha256', $body, $appSecret);

// 发起请求……

String body = "{\"requestId\":\"20261019-0001\","
    + "\"cardType\":\"JD\",\"cardNo\":\"1000****8888\","
    + "\"cardPwd\":\"******\",\"accountId\":\"acc_1024\"}";

String sign = HmacSHA256.sign(body, appSecret);
HttpURLConnection conn = (HttpURLConnection)
    new URL("https://api.yunbangka.com/v1/cards/bind").openConnection();
conn.setRequestMethod("POST");
conn.setRequestProperty("X-Sign", sign);