Topic: Credit card processing in the UK
I'm looking to develop an online store built in Rails and based in the UK.
Can anyone recommend somewhere that processes online transactions or any tutorials on the subject?
Re: Credit card processing in the UK
Worldpay is quite good, but with relatively high setup/subscription costs (at least compared to the 'free' of less customisable solutions like PayPal).
Can't think of any other UK-specific ones off the top of my head.
- Baltar
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Re: Credit card processing in the UK
Protx (www.protx.com) are very good, with a simple system and great rates - I use them with clients presently and things are good.
Re: Credit card processing in the UK
Ah yes, forgot them. They do require you to have your own Internet Merchant Account though, while Worldpay will sort it for you.
Re: Credit card processing in the UK
Hi Baltar,
Did you find it easy to integrate the protx gateway into a rails app?
And did you use the form or server product.
I am about to do the same and would be grateful for any advice on any potential gotcha's
- Baltar
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Re: Credit card processing in the UK
vrnatio wrote:
Hi Baltar,
Did you find it easy to integrate the protx gateway into a rails app?
And did you use the form or server product.
I am about to do the same and would be grateful for any advice on any potential gotcha's
Hiya, sorry missed your post, didn't subscribe to the thread... I haven't actually needed a payment processor for any of my rails apps as of yet but it certainly shouldn't be too hard to get it to work, (I'm talking of the form product - that's the only one clients have needed) - at the end of the day it just outputs html form tags and receives a confirmation back from Protx so if I could implement it in php I don't see it being a problem in our beloved ruby 
that having been said, if I do get called upon to use payments in a rails app I would probably just release the code out under MIT license, libraries for stuff like payment processing are the ideal open source code since money is involved and you want as many eyes on the code as possible looking for errors - someone might have already written one for all I know, haven't searched to be honest!
I think it's better to choose a payment gateway based upon client (or you own) needs and the services they offer rather than a particular ease of implementation (not suggesting that protx is hard to implement but you get my drift)
I'll shut up now because I'm starting to ramble....
Re: Credit card processing in the UK
Does anyone have the simpleXOR function converted for use in ruby?
I am currently implementing the ProtX Form VSP on an e-commerce site and having trouble getting the XOR to work correctly
I have the output of the PHP function and my ruby function and they differ slightly
PHP:
function simpleXor($InString, $Key) {
// Initialise key array
$KeyList = array();
// Initialise out variable
$output = "";
// Convert $Key into array of ASCII values
for($i = 0; $i < strlen($Key); $i++){
$KeyList[$i] = ord(substr($Key, $i, 1));
} // Step through string a character at a time
for($i = 0; $i < strlen($InString); $i++) {
// Get ASCII code from string, get ASCII code from key (loop through with MOD), XOR the two, get the character from the result
// % is MOD (modulus), ^ is XOR
$output.= chr(ord(substr($InString, $i, 1)) ^ ($KeyList[$i % strlen($Key)]));
}
// Return the result
return $output;
}
My Ruby:
def simple_xor(to_encode, password)
keylist = Array.new
output = ""#convert password into arrray of ascii values
password.each_byte {|b| keylist << b}
len = to_encode.length - 1
(0..len).each do |i|
temp = to_encode[i] ^ keylist[i.modulo(password.length)]
output = output + temp.chr
end
output
end
If anyone can see why my ruby isn't working the same as the PHP please let me know as this project needs finishing
This problem is driving me bonkers at the moment 
thanks in advance for any help
Joe
Re: Credit card processing in the UK
For online shopping it is compulsory to have a merchant account for online payment using any payment gateway. There are multiple options you have to choose right payment gateway like merchantinc.com is also one of the best payment gateway which is a merchant friendly as well as it funds deposited directly into your account giving you full control with federal protection.
Re: Credit card processing in the UK
Worldpay is quite good. Information sharing and communication is very important because without proper information, advancement and
improvement is not possible.
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Last edited by akibhuzurs (2012-11-30 06:24:57)