支付宝In-App支付
请参考该链接下载支付宝海外SDK. 
请参考该链接下载支付宝香港SDK. 
请参考该链接了解如何触发支付宝香港SDK.
HTTP请求
POST ../trade/v1/payment 
PayType: 801110 Oversea Merchants 
PayType: 801510 Hong Kong Merchants
请求参数
请求本体:
txamt=1&txcurrcd=HKD&pay_type=801510&out_trade_no=052711570017898&txdtm=2021-05-27+11%3A57%3A00&goods_name=goods_name&goods_info=goods_info&mchid=nDB64h9qJ1An&trade_name=trade_name&goods_detail=goods_detail&return_url=https%3A%2F%2Fwww.qfpay.global%2F&pay_tag=ALIPAYHK&seller_id=testoverseas9191%40alipay.com
QFPay 平台响应:
{
  "pay_type": "801510",
  "sysdtm": "2021-05-27 11:57:02",
  "paydtm": "2021-05-27 11:57:02",
  "udid": "qiantai2",
  "txcurrcd": "HKD",
  "txdtm": "2021-05-27 11:57:00",
  "txamt": "1",
  "resperr": "交易成功",
  "respmsg": "",
  "out_trade_no": "052711570017898",
  "syssn": "20210527154100020004180921",
  "pay_params": {
    "body": "goods_info",
    "forex_biz": "FP",
    "seller_id": "2088231067382451",
    "secondary_merchant_id": "1000007081",
    "service": "mobile.securitypay.pay",
    "payment_inst": "ALIPAYHK",
    "it_b_pay": "30m",
    "secondary_merchant_name": "IFlare Hong Kong Limited (external) - online",
    "_input_charset": "UTF-8",
    "sign": "iU1yXUnsCK7rJAu0DoN61arVexbIfo3GLR5jr3QzjkZ29INSPhcA4e%2F2%2BdPrsf5huzQAkxVKP0CTfvaGPMYqNkxmhoaJWUH0ZhgYDgKugMvtweBvRqOX2W0h3A%2F%2FIdJuxeyOAuh7bHiuazSB3ZH%2BEQwRGP%2Bkk8Jpha930gHwPtw%3D",
    "currency": "HKD",
    "out_trade_no": "20210527154100020004180921",
    "payment_type": "1",
    "total_fee": 0.01,
    "sign_type": "RSA",
    "notify_url": "https://test-o2-hk.qfapi.com/trade/alipay_hk/v1/notify",
    "partner": "2088231067382451",
    "secondary_merchant_industry": "5941",
    "product_code": "NEW_WAP_OVERSEAS_SELLER",
    "return_url": "https://www.qfpay.global",
    "subject": "goods_name"
  },
  "respcd": "0000",
  "chnlsn": "",
  "cardcd": ""
}
使用支付宝SDK发送请求:
(当您在调用支付宝SDK收到 pay_params 后, the orderinfo 请求参数需要被调整成如下格式:
将所有数组值以 key="value" 的格式组合起来, 请求参数需根据参数名称升序排列, 然后使用 & 将参数连接起来.
sign 和 sign_type 参数需要放置在末尾.)
Sample:
_input_charset="UTF-8"&body="goods_info"¤cy="HKD"&forex_biz="FP"&it_b_pay="30m"¬ify_url="https://test-o2-hk.qfapi.com/trade/alipay_hk/v1/notify"&out_trade_no="20210527154100020004180921"&partner="2088231067382451"&payment_inst="ALIPAYHK"&payment_type="1"&product_code="NEW_WAP_OVERSEAS_SELLER"&return_url="https://www.qfpay.global/"&secondary_merchant_id="1000007081"&secondary_merchant_industry="5941"&secondary_merchant_name="IFlare Hong Kong Limited (external) - online"&seller_id="2088231067382451"&service="mobile.securitypay.pay"&subject="goods_name"&total_fee="0.01"&sign="iU1yXUnsCK7rJAu0DoN61arVexbIfo3GLR5jr3QzjkZ29INSPhcA4e%2F2%2BdPrsf5huzQAkxVKP0CTfvaGPMYqNkxmhoaJWUH0ZhgYDgKugMvtweBvRqOX2W0h3A%2F%2FIdJuxeyOAuh7bHiuazSB3ZH%2BEQwRGP%2Bkk8Jpha930gHwPtw%3D"&sign_type="RSA"
| 参数名称 | 参数编码 | 是否必填 | 参数类型 | 描述 | 
|---|---|---|---|---|
| 常用支付参数 | — | — | — | — | 
| 商品描述 | goods_info | 否 | String | 支付宝必传 不得包含特殊字符 | 
| 支付标记 | pay_tag | 否 | String(16) | 默认值是ALIPAYHK 支付宝大陆版本传值:ALIPAYCN  | 
| 订单过期时间 | expired_time | 否 (仅限正扫支付)  | String(3) | 以分钟为单位的过期时间. 默认的过期时间为30分钟, 最小值5分钟,最大值120分钟 适用于微信和支付宝  |