Alipay in-APP Payments

To download Alipay Oversea SDK , please refer to this link.
To download Alipay HK SDK, please refer to this link.
To know how to trigger Alipay HK SDK , please refer to this link.

HTTP Request

Endpoint : /trade/v1/payment

Method : POST

PayType :

PayType	Description
801110	Oversea Merchants
801510	Hong Kong Merchants

Request Parameters

Request Body:

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=http%3A%2F%2Fwww.qfpay.com%2F&pay_tag=ALIPAYHK&seller_id=testoverseas9191%40alipay.com

QFPay Response:

{
  "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": "http://www.qfpay.com/",
    "subject": "goods_name"
  },
  "respcd": "0000",
  "chnlsn": "",
  "cardcd": ""
}

Request using Alipay SDK：

(After you receive the content of pay_params, when you call Alipay SDK, 
the orderinfo request parameters need to be adjusted in the following format:
Combine all the array values in the format of key="value", request parameters 
in ascending order of parameter name, then use "&" to link the parameters, 
"sign" and "sign_type" parameters need to be placed at the end.) 

Sample:

_input_charset="UTF-8"&body="goods_info"&currency="HKD"&forex_biz="FP"&it_b_pay="30m"&notify_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="http://www.qfpay.com/"&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"

Attribute	Mandatory	Type	Description
Public payment parameters	—	—	Please refer to the Public Payment Section for more details
goods_info	No	String	Product description, must not contain special characters
pay_tag	No	String(16)	Payment mark, the default value is: ALIPAYHK Alipay Continental version: ALIPAYCN
expired_time	No (MPM only)	String(3)	Order expiration time, QRC expiration time in unit minutes. The default expiration time is 30 minutes. The parameter can manually be adjusted to a minimum of 5 minutes, and up to a maximum of 120 minutes. Available for WeChat and Alipay

Response Parameters

Attribute	Secondary Attribute	Description
pay_params	partner	Partner
	seller_id	Unique Alipay user number referencing the Alipay payment account
	subject	Product name / transaction number / order number / order keyword, etc.
	body	A specific description of a transaction. If it refers to a basket of products, please accumulate the product description string in the body.
	total_fee	Total amount
	notify_url	Notification address
	service	Service
	cardcd	Card number
	payment_type	Payment type
	\_input_charset	Encoding format
	it_b_pay	Custom timeout parameter
	return_url	Redirect URL
	payment_inst	Payment institution
	currency	Currency
	product_code	Product code
	sign	Required or not
	sign_type	Signature type
	secondary_merchant_id	Secondary merchant identification
	secondary_merchant_name	Secondary business name
	secondary_merchant_industry	Secondary merchant industry
chnlsn		Channel coding
Public response parameters	—	Please refer to the Public Payment Section for more details