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Payment.Process Command

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Purpose of This Command

The payment.process command processes payments from a credit card or bank account to the merchant or it can be used to send payments to a bank account from the merchant (refunds, vendor payments, sales commissions, etc).

You have the ability to provide a credit card account, a bank account or a PaymentKey token as the desired payment method for each payment.

A PaymentKey token is an encrypted value that represents a credit card account or a bank account.
A token provides security and convenience to merchants who do not wish to store the payment account information of their customers.

A PaymentKey token can be generated and returned the first time you process a customer's payment through this payment.process API command.
From that point forward, you can submit the PaymentKey token instead of their payment account information on all future payment transactions.
You may also generate a PaymentKey token without processing a payment by using the paymentkey.generate command in this API.



WSDL-Generated Objects Available For Use With This Command

  • PK_Command
  • PK_Response

Command Structure and Rules

The following table lists the required and optional fields for this command:

Field NameUsageData To Be Sent
CommandRequiredSet this field value to payment.process
VersionRequiredSet this field value to 1.0
api_call_idRequiredA unique ID that your software assigns to the API call which allows the PaymentKeys servers to ensure that this specific command is only sent once and can never be sent again.
More information about how this works and why it is necessary can be found in the Authentication document of this WIKI.
TestModeOptionalSet this value to On to test a command response without actually executing the command. Default value is Off.
PaymentAccountTypeRequiredMust be set to one of the following values to indicate the type of payment account being tokenized: echeck, visa, mastercard, discover, amex, paymentkey
DateScheduledOptionalDate to process payment (format:  mm/dd/yyyy).
AmountRequiredThe amount of the payment being processed.
Merchant_ReferenceIDOptionalAn internal ID or invoice number the merchant wants assigned to this payment
DescriptionOptionalA custom description for this payment
SendEmailToCustomerRequiredValue must be either Yes or No
Billing_EmailConditionalPayment notification email address. Required if SendEmailToCustomer is set to Yes.
Billing_PhoneOptionalThe phone number of the payment account holder
Customer_IPAddressConditionalThe customer’s IP Address if payment is made online.
Required if the SECCode field is set to WEB.
Generate_PaymentKeyOptionalValue must be either Yes or No.
Default value is set to No.
Required Fields When PaymentAccountType is paymentkey
PaymentKeyRequiredA PaymentKey token previously generated through the PaymentKeys Application Framework API that represents a customer's encrypted payment account and billing profile information.
Required Fields When PaymentAccountType is echeck
PaymentDirectionRequiredValue must be FromCustomer or ToCustomer
RoutingNumberRequiredThe ABA routing number on customer’s check.
BankAccountNumberRequiredThe customer’s bank account number .
BankAccountTypeRequiredValue must be Checking or Savings
CheckTypeRequiredValue must be Personal or Business.
CheckNumberOptionalThe check number on the customer's check.
SECCodeRequiredValue must be PPD, CCD, WEB, or TEL.
Required Fields When PaymentAccountType is visa, mastercard, discover, or amex
CardNumberRequiredThe full 15 or 16 digit account number on the credit card
ExpirationRequiredThe expiration date on the credit card
(format: MMYYYY).
The following fields are not required if the PaymentAccountType is paymentkey.
The PaymentKey token already contains the billing profile information.
However, you may use these fields to override the encrypted values in the token.
These fields are required for all other payment methods.
Billing_CustomerIDOptionalAn internal identifier you have assigned to this customer.
Billing_FirstNameRequiredFirst name of the bank account or credit card account holder
Billing_LastNameRequiredLast name of the bank account or credit card account holder
Billing_CompanyRequiredCompany name associate with the payment account. Required if the CheckType field above is set to Business
Billing_Address1RequiredStreet address of the payment account holder.
Billing_Address2OptionalAdditional street address information.
Billing_CityRequiredCity of the payment account holder.
Billing_StateRequired2-Letter state abbreviate for the state of the account holder.
Billing_ZipRequiredZip Code (format: ##### or #####-####)
Billing_CountryOptional2-letter country code (ISO 3166). Default is US.



Sample JSON Command String

The following is an example of what the JSON string might look like for this command:


{
  "Command":"payment.process",
  "Version":"1.0",
  "api_call_id":"1AC4F-98B543-7FC0E",
  "TestMode":"On",
  "PaymentAccountType":"echeck",
  "Amount":"100.00",
  "Merchant_ReferenceID":"123456",
  "Description":"Invoice Payment",
  "SendEmailToCustomer":"Yes",
  "Billing_Email":test@paymentkeys.com,
  "Billing_Phone":"123-456-7890",
  "Customer_IPAddress":"123.123.123.123",
  "Generate_PaymentKey":"Yes",
  "PaymentDirection":"FromCustomer",
  "RoutingNumber":"123123123",
  "BankAccountNumber":"123456789",
  "BankAccountType":"Checking",
  "CheckType":"Personal",
  "CheckNumber":"1234",
  "SECCode":"CCD",
  "Billing_CustomerID":"12345",
  "Billing_FirstName":"Jane",
  "Billing_LastName":"Doe",
  "Billing_Company":"Company LLC",
  "Billing_Address1":"123 Some Street",
  "Billing_Address2":"",
  "Billing_City":"Dallas",
  "Billing_State":"TX",
  "Billing_Zip":"75001",
  "Billing_Country":"US"
}

Response Structure and Rules

The following table lists the fields that will be returned in a JSON string response to the paymentkey.generate command:


Field NameField ContentsMax LengthAdditional Information
CommandStatusReturns one of the following values:
  • Approved
  • Declined
  • Error
10Indicates the success or failure of the command issued.
ResponseCodeA 3-digit code indicating command success or reason for command failure.3Please refer to the document titled Response Codes in this wiki for a list of possible code values, their descriptions, and what
additional information may be
available in the ErrorInformation field.
DescriptionA description of the api ResponseCode value255
ErrorInformationAdditional information to help determine the source of an error.50
PaymentKeyA unique token assigned to the bank account or credit card account provided AND the billing profile associated with that payment account.10Store this token in your system for making future tokenized payments.
Command_ReferenceIDA unique reference ID assigned to each API command request.30This value is only needed as a reference during support calls or questions about specific api command attempts.




Sample JSON Response String

The following is an example of what the JSON string sent in response to this command might look like:

{"CommandStatus":"Success","ResponseCode":"000","Description":"Command Successful","ErrorInformation":null,"PaymentKey":"e1111_d4cc5_a9b95_39405","Command_ReferenceID":"45451-25141-0a0a"}


There are code examples below that demonstrate how to easily convert the PK_Command object (stubbed by the WSDL for this web service) into a JSON string like this one.
The code examples below will demonstrate how to easily convert this JSON response string into the PK_PaymentKeyAdmin_Response object stubbed by the WSDL for this web service.

Code Samples

Visual Basic .NET
Imports PaymentKeys.API_Tookit’Define a command object for populating command parametersDim PK_Command As New PK_PaymentKeyAdmin_Command’Build the command to send to the PaymentKeys Application Framework
PK_Command.command = "paymentkey.generate"
PK_Command.version = "1.0"
PK_Command.api_call_id = Guid.NewGuid.ToString
PK_Command.paymentkey = "v1111_00000_00000_00000.pk"’Serialize the command object to a JSON stringDim serializer As New System.Web.Script.Serialization.JavaScriptSerializer()Dim api_call As String = serializer.Serialize(PK_Command)’Create HMACSHA1 signature hash for the JSON command string using the GatewayCodeDim sha1 As New System.Security.Cryptography.HMACSHA1()’Specify the GatewayCode secret key
sha1.Key = System.Text.Encoding.UTF8.GetBytes("PK_Demo")’Convert the JSON command string to a byte arrayDim byteArray As Byte() = System.Text.Encoding.UTF8.GetBytes(api_call)’Generate the hash signatureDim api_sig As String = Convert.ToBase64String(sha1.ComputeHash(byteArray))’Post HTTP Request data using the HTTPFormPost Utility from the PaymentKeys API ToolkitDim FormPost As New HTTPFormPost()
FormPost.URL = "https://www.paymentkeys.com/api.rest/appserver"
FormPost.Add_FormField("api_keyID", "PaymentKeys_Demo.pk")
FormPost.Add_FormField("api_sig", api_sig)
FormPost.Add_FormField("api_call", api_call)
FormPost.Add_FormField("api_output", "json")Try: FormPost.Submit()Catch ex As Exception: ’Handle HTTP communication exceptions hereEnd Try’Deserialize JSON response string into response objectIf Not (FormPost.ResponseText = String.Empty) Then: Dim PK_Response As PK_PaymentKeyAdmin_Response: PK_Response = serializer.Deserialize(Of PK_PaymentKeyAdmin_Response)(FormPost.ResponseText): ’Parse the Response per your application and policy rules: Select Case PK_Response.status: Case""Success": ’Process successful response: Case "Declined": ’Process Decline response: Case "Error": ’Process Error response: End SelectEnd If
C# .NET
using PaymentKeys.API_Tookit;//Define a command object for populating command parameters
PK_PaymentKeyAdmin_Command PK_Command = new PK_PaymentKeyAdmin_Command();//Build the command to send to the PaymentKeys Application Framework
PK_Command.command = "paymentkey.generate";
PK_Command.version = "1.0";
PK_Command.api_call_id = Guid.NewGuid.ToString;
PK_Command.paymentkey = "v1111_00000_00000_00000.pk";//Serialize the command object to a JSON string
System.Web.Script.Serialization.JavaScriptSerializer serializer = new System.Web.Script.Serialization.JavaScriptSerializer();string api_call = serializer.Serialize(PK_Command);//Create HMACSHA1 signature hash for the JSON command string using the GatewayCode
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1();//Specify the GatewayCode secret key
sha1.Key = System.Text.Encoding.UTF8.GetBytes("PK_Demo");//Convert the JSON command string to a byte arraybyte[] byteArray = System.Text.Encoding.UTF8.GetBytes(api_call);//Generate the hash signaturestring api_sig = Convert.ToBase64String(sha1.ComputeHash(byteArray));//Post HTTP Request data using the HTTPFormPost Utility from the PaymentKeys API Toolkit
HTTPFormPost FormPost = new HTTPFormPost();
FormPost.URL = "https://www.paymentkeys.com/api.rest/appserver";
FormPost.Add_FormField("api_keyID", "PaymentKeys_Demo.pk");
FormPost.Add_FormField("api_sig", api_sig);
FormPost.Add_FormField("api_call", api_call);
FormPost.Add_FormField("api_output", "json");try{: FormPost.Submit();}catch (Exception ex){: //Handle HTTP communication exceptions here}//Deserialize JSON response string into response objectif (!(FormPost.ResponseText == string.Empty)){: PK_PaymentKeyAdmin_Response PK_Response = default(PK_PaymentKeyAdmin_Response);: PK_Response = serializer.Deserialize<PK_PaymentKeyAdmin_Response>(FormPost.ResponseText);: //Parse the Response per your application and policy rules: switch (PK_Response.status): {: case "Success":: //Process successful response: break;: case "Declined":: //Process Decline response: break;: case "Error":: //Process Error response: break;: }}










 

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