Check verification

Introduction

Check verification is initiated through HTTPS POST request by using URLs and the parameters.

Check verification is used for security purposes and allows Denumtech to compare the data sent by Connecting Party’s app with the data stored on Connecting Party’s server.

It is highly recommended to respond with the actual information stored on Connecting Party’s server.

API URLs

Connecting Party Server
https://proxy.connectingpartyserver.com/verification/{invoiceId}/check

Request Parameters

Parameter Name	Description	Value
consumer		Type: Object
consumer.device		Type: Object
consumer.device.serialNumber	Consumer’s device serial number.	Type: String Length: 1-50
session		Type: Object
session.accessToken	Consumer’s access token key sent by Connecting Party’s app.	Type: String Length: 32-128
session.nonce	Value sent by Connecting Party’s app.	Type: String Length: 32-128
session.signature	Value sent by Connecting Party’s app.	Type: String Length: 32-128
session.token	The session token of verification transaction.	Type: String Length: 16-36

Success Response Parameters

Parameter Name	Description	Value
invoiceId	Verification transaction identifier.	Necessity: Required Type: String
session		Necessity: Required Type: Object
session.checkSignature	Checksum generated by hmac-sha1 (see Signature computation) from the concatenation of consumer.device.serialNumber, session.nonce, endpointId and invoiceId.	Necessity: Required Type: String
session.nonce	Unique random string generated by Connecting Party’s server in Initiate verification response.	Necessity: Required Type: String
session.token	The session token of verification transaction.	Necessity: Required Type: String
billing		Necessity: Optional Type: Object
billing.address		Necessity: Optional Type: Object
billing.address.city	City name.	Necessity: Optional Type: String
billing.address.country	ISO alpha3 country code.	Necessity: Optional Type: String
billing.address.postcodeZip	ZIP post code.	Necessity: Optional Type: String
billing.address.state	State is used if present. For example, Los Angeles is in CA state.	Necessity: Optional Type: String
billing.address.street	Street is used for district names and street names.	Necessity: Optional Type: String
billing.address.street2	Street 2 is used for long addresses. Usually it contains apartment and building №.	Necessity: Optional Type: String
billing.phone	Customer’s contact phone number.	Necessity: Optional Type: String
consumer.birthDay	Consumer’s birth day in “ddMMyyyy” format.	Necessity: Optional Type: String
consumer.email	Consumer’s email address.	Necessity: Optional Type: String
consumer.ipAddresses	Consumer’s IP addresses.	Necessity: Optional Type: List
consumer.ipAddresses[]	Consumer’s IP address.	Necessity: Optional Type: String
transaction.currency	Upper case letters (ISO 4217 alpha code).	Necessity: Optional Type: String
transaction.randomSumCentis	Random sum amount (for random sum check), 1.00 EUR = 100 centis.	Necessity: Optional Type: Integer

Fail Response Parameters

Parameter Name	Description	Value
error		Type: Object
error.cause	Cause of the error. Possible values: FILTERED, INVALID_REQUEST, SERVER_FAILED, SERVER_UNAVAILABLE.	Type: Enum
error.code	The unique error code.	Type: String
error.message	Description of the error.	Type: String
invoiceId	Verification transaction identifier.	Type: String

Request Example

{
  "consumer": {
    "device": {
      "serialNumber": "string"
    }
  },
  "session": {
    "accessToken": "string",
    "nonce": "string",
    "signature": "string",
    "token": "string"
  }
}

Success Response Example

{
  "billing": {
    "address": {
      "city": "string",
      "country": "string",
      "postcodeZip": "string",
      "state": "string",
      "street": "string",
      "street2": "string"
    },
    "phone": "string"
  },
  "consumer": {
    "birthDay": "string",
    "email": "string",
    "ipAddresses": ["string"]
  },
  "invoiceId": "string",
  "session": {
    "checkSignature": "string",
    "nonce": "string",
    "token": "string"
  },
  "transaction": {
    "currency": "string",
    "randomSumCentis": "integer"
  }
}

Fail Response Example

{
  "error": {
    "cause": "enum",
    "code": "string",
    "message": "string"
  },
  "invoiceId": "string"
}