b2c-docs/docs/pc/purc.md

4. Purchase interface

4.1. Interface URL

Interface Name	Test URL	Production URL
Purchase	https://testapi.allpayx.com/pay	https://api.allpayx.com/pay

4.2. Purchase interface

1. Request message format

This field is a list of common fields, sending, every channel needs some channel channel exclusive field, specific fields please go to the channel's exclusive canal to the fields that view. Consumer interface is divided into jump transformation and parameters return type, default to jump transformation, parameters return type will be explained in chapter 4 channels (exclusive) inside.

Parameter	Type	Required	Description
version	String(12)	M	"VER000000002"
charSet	String(6)	M	“UTF-8”
transType	String(4)	M	“PURC”
orderNum	String(60)	M	Order number: it is defined by the merchant itself, and the order number must not be repeated for the same merchant number
orderAmount	String(12)	M	Order amount: if 100 yuan, it will be 100 or 100.00
orderCurrency	String(3)	M	Currency of the order: ISO standard, such as RMB filling in "CNY", us dollar filling in "USD"
frontURL	String(400)	M	When the payment is complete, jump to the address
backURL	String(400)	M	Payment results are asynchronously notified to this address
merReserve	String(1024)	M	Merchant reserved content, can pass any content, such as purchase information, account number, etc., but do not pass special symbols, such as commas.
merID	String(15)	M	Merchant ID, assigned by AllPay
acqID	String(11)	M	"99020344"
paymentSchema	String(10)	M	Channel code：Click Here
goodsInfo	String(60)	M	Goods Information
transTime	String(14)	M	Transaction time, format :" yyymmddhhmmss"
signType	String(3)	M	MD5
signature	String(32)	M	MD5 signature