Union Pay API

POST

/payment

Tapxyz will obtain the HTTP Header referer to verify the website source. The website source must be configured by Tapxyz to be verified. If you do not access the interface through a browser, you need to actively add a referer.

Request

Header Params

Body Params application/json

Examples

Responses

🟢200Success

application/json

Body

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST '/payment' \
--header 'paymentType: UNIONPAY' \
--header 'Content-Type: application/json' \
--data-raw '{
  "merNo": 111111,
  "merOrderNo": "222222",
  "currencyCode": "USD",
  "sourceAmount": "100.05",
  "returnUrl": "https://example.com",
  "notifyUrl": "https://example.com/notify",
  "sign": "906FDF4880B00B00281F2AB61AE9A721",
  "ipAddress": "192.168.1.1",
  "version": "V3.0.0",
  "userId": "111",
  "email": "example@gmail.com"
}'

Response Example

{
    "code": "string",
    "message": "string",
    "data": {
        "payCode": 0,
        "tradeNo": "string",
        "merorderNo": "string",
        "payUrl": "string"
    }
}

Modified at 2025-12-12 07:03:52

SPEI API

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