Cancel Callback

• Use for Merchant to redirect customer to cancel payment page.

Note:

Response Signature is create by applying hash algorithm SHA256 the response data with Salt.

signature = SHA256(data + salt)

Body

Level	Field Name	Data Type	Description
1	data	Alphanumeric mandatory	Base-64 string
1	signature	Alphanumeric mandatory	Response Signature signature = SHA256(data + Salt)

Data (Decode Base-64 String)

Level	Field Name	Data Type	Description
1	requestID	Alphanumeric(50) mandatory	Original Request ID
1	responseDateTime	Numeric(14) mandatory	yyyyMMddHHmmss
1	responseCode	Numeric(3) mandatory	See Response Codes for more detail
1	responseMessage	Alphanumeric(250) mandatory	Response message
1	responseData	JSON Object mandatory	Response data
2	transactionID	Alphanumeric(38) mandatory	GALAXY PAY transaction ID
2	transactionDateTime	Numeric(14) mandatory	yyyyMMddHHmmss
2	orderID	Alphanumeric(50) mandatory	Transaction ID at Merchant
2	orderNumber	Alphanumeric(20) optional	Order Number or Bill Number
2	orderAmount	Numeric(16) mandatory	Order Amount
2	orderCurrency	Alpha(3) mandatory	Order Currency
2	orderDateTime	Numeric(14) mandatory	Order Date Time yyyyMMddHHmmss
2	orderDescription	Alphanumeric(250) mandatory	Order Description
2	language	Alpha(2) mandatory	vi or en vi: Vietnamese en: English

RESPONSE DATA

{
  "data": "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",
  "signature": "be8d2d815d694037d7ec2d9f7ac645d7a6168b692af6b786c1d59da72cd93a5e"
}


VERIFY SIGNATURE

const data = "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";
const salt = "GO@2021";
const signature = SHA256(data + salt);


DECODE BASE-64 STRING FOR DATA
{
  "requestID": "14653fa1-2f69-4f4f-9d4b-240e1bebbdf3",
  "responseDateTime": "20220506113517",
  "responseCode": "499",
  "responseMessage": "Canceled by user",
  "responseData": {
    "transactionID": "22050699e65d9a71d548e6b67323aef1a494ac",
    "transactionDateTime": "20220506113517",
    "orderID": "888289",
    "orderNumber": "82262889",
    "orderAmount": "109000",
    "orderDescription": "Secure Page Demo",
    "orderCurrency": "VND",
    "orderDateTime": "20220405202000",
    "language": "vi"
  }
}