Chilkat Examples

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Visual Basic 6.0 Web API Examples

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(Visual Basic 6.0) CardConnect Authorization

Demonstrates how to send an Authorization request.

Authorization is the initial step in accepting payment from a cardholder. This action "authorizes" or requests permission from the bank to transfer money from the cardholder to the merchant.

See https://developer.cardconnect.com/cardconnect-api#authorization

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim http As New ChilkatHttp
Dim success As Long

http.BasicAuth = 1
http.Login = "API_USERNAME"
http.Password = "API_PASSWORD"

' Build and send the following JSON:

' Note: The CardConnect online documentation might use an expiry that is in the past, such as "1218".
' This causes the request to fail.  Use a month/year that is in the future..
' (Likewise, this example will have an invalid month/year after Dec 2021)

' {
'   "merchid": "MERCHANT_ID",
'   "accttype": "VISA",
'   "orderid": "AB-11-9876",
'   "account": "4111111111111111",
'   "expiry": "1221",
'   "amount": "0",
'   "currency": "USD",
'   "name": "TOM JONES",
'   "address": "123 MAIN STREET",
'   "city": "anytown",
'   "region": "NY",
'   "country": "US",
'   "postal": "55555",
'   "profile": "Y",
'   "ecomind": "E",
'   "cvv2": "123",
'   "track": null,
'   "capture": "Y"
' }

' Use this online tool to generate the code from sample JSON: 
' Generate Code to Create JSON
Dim json As New ChilkatJsonObject
success = json.UpdateString("merchid","MERCHANT_ID")
success = json.UpdateString("accttype","VISA")
success = json.UpdateString("orderid","AB-11-9876")
success = json.UpdateString("account","4111111111111111")
success = json.UpdateString("expiry","1221")
success = json.UpdateString("amount","20")
success = json.UpdateString("currency","USD")
success = json.UpdateString("name","TOM JONES")
success = json.UpdateString("address","123 MAIN STREET")
success = json.UpdateString("city","anytown")
success = json.UpdateString("region","NY")
success = json.UpdateString("country","US")
success = json.UpdateString("postal","55555")
success = json.UpdateString("profile","Y")
success = json.UpdateString("ecomind","E")
success = json.UpdateString("cvv2","123")
success = json.UpdateNull("track")
success = json.UpdateString("capture","Y")

Dim url As String
url = "https://<site>.cardconnect.com:<port>/cardconnect/rest/auth"
Dim responseStr As String
responseStr = http.PutText(url,json.Emit(),"utf-8","application/json",0,0)

If (http.LastMethodSuccess = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

' A response status of 200 indicates potential success.  The JSON response body
' must be examined to determine if it was truly successful or an error.
Debug.Print "response status code = " & http.LastStatus

Dim jsonResp As New ChilkatJsonObject
success = jsonResp.Load(responseStr)
jsonResp.EmitCompact = 0

Debug.Print "response JSON:"
Debug.Print jsonResp.Emit()

' Sample error:

' {
'   "respproc": "PPS",
'   "amount": "0.00",
'   "resptext": "Invalid amount",
'   "cardproc": "FNOR",
'   "acctid": "1",
'   "retref": "112804260418",
'   "respstat": "C",
'   "respcode": "43",
'   "account": "41XXXXXXXXXX1111",
'   "defaultacct": "Y",
'   "merchid": "MERCHANT_ID",
'   "token": "9418594164541111"
' }

' A successful response looks like this:

' {
'   "amount": "0.20",
'   "resptext": "Approval",
'   "acctid": "1",
'   "commcard": " C ",
'   "cvvresp": "M",
'   "respcode": "00",
'   "batchid": "1900942291",
'   "avsresp": "Z",
'   "entrymode": "ECommerce",
'   "defaultacct": "Y",
'   "merchid": "MERCHANT_ID",
'   "token": "9418594164541111",
'   "authcode": "PPS158",
'   "respproc": "FNOR",
'   "bintype": "",
'   "profileid": "16618402968441604028",
'   "retref": "112989260941",
'   "respstat": "A",
'   "account": "41XXXXXXXXXX1111"
' }

' Use this online tool to generate parsing code from sample JSON: 
' Generate Parsing Code from JSON

Dim amount As String
amount = jsonResp.StringOf("amount")
Dim resptext As String
resptext = jsonResp.StringOf("resptext")
Dim acctid As String
acctid = jsonResp.StringOf("acctid")
Dim commcard As String
commcard = jsonResp.StringOf("commcard")
Dim cvvresp As String
cvvresp = jsonResp.StringOf("cvvresp")
Dim respcode As String
respcode = jsonResp.StringOf("respcode")
Dim batchid As String
batchid = jsonResp.StringOf("batchid")
Dim avsresp As String
avsresp = jsonResp.StringOf("avsresp")
Dim entrymode As String
entrymode = jsonResp.StringOf("entrymode")
Dim defaultacct As String
defaultacct = jsonResp.StringOf("defaultacct")
Dim merchid As String
merchid = jsonResp.StringOf("merchid")
Dim token As String
token = jsonResp.StringOf("token")
Dim authcode As String
authcode = jsonResp.StringOf("authcode")
Dim respproc As String
respproc = jsonResp.StringOf("respproc")
Dim bintype As String
bintype = jsonResp.StringOf("bintype")
Dim profileid As String
profileid = jsonResp.StringOf("profileid")
Dim retref As String
retref = jsonResp.StringOf("retref")
Dim respstat As String
respstat = jsonResp.StringOf("respstat")
Dim account As String
account = jsonResp.StringOf("account")

 

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