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Version: 1.0

How to generate signature

API Params Example​

{
  "partnerRefId": "AB123",
  "telco": "viettel",
  "telcoServiceType": "prepaid",
  "phoneNumber": "0866123456",
  "signature": "5a2774918a29cf4d2bdb78cccceb956f4c27837fad09a03a56e1df68b1bf29dd"
}

The order of parameters to create the signature will be sorted alphabetically.
The parameters are included into signature: partnerRefId + phoneNumber + telco + telcoServiceType
The string generated with the above parameters will be:

"partnerRefId=AB123&phoneNumber=0866123456&telco=viettel&telcoServiceType=prepaid"

signature = HMAC_SHA256("partnerRefId=AB123&phoneNumber=0866123456&telco=viettel&telcoServiceType=prepaid", YOUR_SECRET_KEY)