08-06-2013 09:50 AM
I am attempting to use authorize.net sample code for SIM (VB.NET) and am having some difficulty. Here is the code I'm currently using:
HTML (may be slightly altered because of this forms HTML checker):
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="wellsfargo.aspx.vb" Inherits="TDEA.wellsfargo" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitiona
<form id="form1" runat="server" method='post' action='https://secure.authorize.net/gateway/transact.dll'
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
amount<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button" />
<input id="HiddenValue" type="hidden" value="Initial Value" runat="server" />
<input type='hidden' runat="server" name='x_login' id='x_login' />
<input type='hidden' runat="server" name='x_amount' id='x_amount' />
<input type='hidden' runat="server" name='x_description' id='x_description' />
<input type='hidden' runat="server" name='x_invoice_num' id='x_invoice_num' />
<input type='hidden' runat="server" name='x_fp_sequence' id='x_fp_sequence' />
<input type='hidden' runat="server" name='x_fp_timestamp' id='x_fp_timestamp' />
<input type='hidden' runat="server" name='x_fp_hash' id='x_fp_hash' />
<input type='hidden' runat="server" name='x_test_request' id='x_test_request' />
<%--<input id="x_relay_response" type="hidden" runat="server" name="x_relay_response" value='TRUE' />--%>
<%--<input type="hidden" runat="server" name="x_relay_url" id='x_relay_url' />--%>
<input type='hidden' runat="server" name='x_show_form' value='PAYMENT_FORM' />
Public Class wellsfargo
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
' start by setting the static values
Dim loginID = "REMOVEDFORSECURITY"
Dim transactionKey = "REMOVEDFORSECURITY"
Dim amount = ".99"
Dim description = "TDEA Sample Transaction"
' The is the label on the 'submit' button
Dim label = "Submit Payment"
Dim testMode = "false"
' If an amount or description were posted to this page, the defaults are overidden
If Request.Form("amount") <> "" Then
amount = Request.Form("amount")
If Request.Form("description") <> "" Then
description = Request.Form("description")
' also check to see if the amount or description were sent using the GET method
If Request.QueryString("amount") <> "" Then
amount = Request.QueryString("amount")
If Request.QueryString("description") <> "" Then
description = Request.QueryString("description")
' an invoice is generated using the date and time
Dim invoice = DateTime.Now.ToString("yyyyMMddHHmmss")
' a sequence number is randomly generated
Dim random As New Random
Dim sequence = random.Next(0, 1000)
' a time stamp is generated (using a function from simlib.asp)
Dim timeStamp = CInt((DateTime.UtcNow - New DateTime(1970, 1, 1)).TotalSeconds)
'generate a fingerprint
Dim fingerprint = HMAC_MD5(transactionKey, loginID & "^" & sequence & "^" & timeStamp & "^" & amount & "^")
'Print the Amount and Description to the page by placing them in the Spans
'amountSpan.InnerHtml = amount
'descriptionSpan.InnerHtml = description
'Update the fields in the actual form
x_login.Value = loginID
x_amount.Value = amount
x_description.Value = description
'buttonLabel.Value = label
x_test_request.Value = testMode
x_invoice_num.Value = invoice
x_fp_sequence.Value = sequence
x_fp_timestamp.Value = timeStamp
x_fp_hash.Value = fingerprint
Function HMAC_MD5(ByVal Key, ByVal Value)
' The first two lines take the input values and convert them from strings to Byte arrays
Dim HMACkey() As Byte = (New ASCIIEncoding()).GetBytes(Key)
Dim HMACdata() As Byte = (New ASCIIEncoding()).GetBytes(Value)
' create a HMACMD5 object with the key set
Dim myhmacMD5 As New HMACMD5(HMACkey)
' calculate the hash (returns a byte array)
Dim HMAChash() As Byte = myhmacMD5.ComputeHash(HMACdata)
' loop through the byte array and add append each piece to a string to obtain a hash string
Dim fingerprint = ""
For i = 0 To HMAChash.Length - 1
fingerprint &= HMAChash(i).ToString("x").PadLeft(2, "0")
Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Once the page goes to the gateway at https://secure.authorize.net, I receive the following:
The following errors have occurred.
(33) Credit card number is required.
(33) Expiration date is required.
Ultimately, what I want to do is just come up with the value for "amount" & another unique value on my website, send the user off to the payment form on authorize.net then send the aforementioned unique value back to my website along with a confirm/deny that the payment went though. I suppose my post is actually 2 questions...
1. Is SIM what I should be using to accomplish what I want to?
2. What am I doing wrong that I'm getting the error I'm getting/Is it on the code side or within my account settings?
08-06-2013 11:31 AM
I am now able to get the payment form to pull up. Not sure what was causing the error. I rebuilt the page from scratch and now it is working. I still don't know how to send a custom value and return it to my website after payment though.
08-06-2013 12:16 PM
Anything that is not authorize.net field name are consider as merchant defined fields which are return on the relay response.
You can post those just like the x_??? field