[bop-devel] V2 and postback processors

[ivan]

On Tue, Feb 22, 2005 at 03:10:37PM -0800, Charlie Piper wrote:
> Greetings all,
> 
> I've been browsing through the Business::OnlinePayment namespace over the
> past few days looking for a new solution for a cart that I am developing.
> One thing that I am noticing is that there isn't an example of a backend
> that processes via a postback from the payment processor.  Does anyone have
> any have any experience with postback processing or is it completely 
> taboo to do via Business::OnlinePayment?

By "postback" do you mean something like PayPal IPN, where the gateway
triggers notification of a completed transaction rather than responding
to a authorization/capture/whatever request?  I certainly wouldn't rule
it out, but so far none of the other B:OP:* modules work like that, and
it does seem like it would require a serious rethink of the way the
interface works...

Or by "postback" do you mean the user's browser is redirected to the
gateway site and then redirected back to your site?  That model is
probably not something Business::OnlinePayment is appropriate for, it is
more about "backoffice" transactions that don't necessarily involve 
an end-user browser...

> I've been mainly working with iTransact[1] which uses postback[2] by
> default.  I've come up with a couple of possibilities but I want to get some
> feedback on the postback issue before I go too much farther.
> 
> I also looked into how interchange handles this (Vend::Payment::iTransact)
> and while it's an interesting solution there are pieces of the puzzle
> missing.  You either find out if the transaction succeeded or you get the
> errors back.  If the transaction succeeded, don't end up with any
> authorization details.
> 
> And finally, I do have some code for the iTransact XML[3] direct version.

This does look more like the way other B:OP modules work, in which a 
transaction is submitted to the gateway and the results are returned.

> Is there a problem converting this to a module compatible with
> Business::OnlinePayment series and uploading to the namespace after review?

Of course not!  Contributions are always welcome.

> [1] http://www.itransact.com/
> [2] http://www.itransact.com/support/connect_html.html
> [3] http://www.itransact.com/support/connect_xml_fe.html

-- 
_ivan