[thelist] Server2Server Communication

[Johnson Borja See]

Hi Hassan,

Thanks for the immediate comment.

I've done all of these things correctly

> 1) parse the form data,
> 2) format it into the query the payment gateway expects,
> 3) open a connection to that gateway
> 4) send the query

and in fact already received a response from the payment gateway that 
I've submitted all the right parameters it was expecting, and so has 
returned an errorcode of "0", i.e. no error. 

I also have the code ready and waiting to perform the parsing of the 
reply and redirecting the client browser to the payment gateway or 
the "so sorry" page as you put it.

> 5) parse the response
> 6) return a "so sorry" page of your own or a redirect to the CC form
>    depending on the response.

My problem is this:

The payment gateway sent the response to the client browser, not to my 
site so that it can appropriately redirect the client browser to the 
right page depending on the result of the response of the browser.

I know this to be the case because when I tried to place a test order 
on the order form, I got the reply intended for my site in my browser, 
and when I check my site, it did not receive any reply (Before sending 
the initialistion request to the payment gateway, I create an entry for 
the order in the database. Upon receipt of the response for the 
initialisation, I have codes that will update the status of the order. 
In this case, the record was created but not updated by the code that 
will be triggered by the response from the payment gateway. Meanwhile, 
on my client browser, I as a test user did in fact see the response 
from the payment gateway although it was of no use to me except to 
confirm that the payment gateway had indeed replied positively to the 
initialisation request.

When I asked the payment gateway vendor (I asked this question 7 
differnt times) the reply was "this is a server2server transaction."

Does this mysteriously worded phrase in English has a special meaning 
to veteran ASP programmers? Sounds to me like there is some server 
variables or something similar that I had to check or set?

I'd have thought that the simpler solution is for me to pass to the 
payment gateway a return interface to my site which the payment gateway 
can invoke to return the response, such as 

https://mysite/ResponsetoInitRequest.asp?errorcode=...

and inside this asp file, I can redirect the client browser tot he 
appropriate payment link or produce the "so sorry" page.

in fact, I did ask this question to the vendor but the reply I got was 
again the mysterious "this is a server2server transaction"

Any thoughts?

Thanks and regards,

Johnson

> Johnson Borja See wrote:
> 
> > 1. When the user press the submit button on the order form from the 
> > ecommerce website (which in this context is also the requesting 
server, 
> > or merchant server), the merchant server sends a initialisation 
request 
> > to the recipient server (a payment gateway) using the format 
specified 
> > by the gateway.
> 
> > 4. I've done step 1, send initialisation request to the payment 
gateway 
> > using a redirect command
> 
> As you've discovered, that's *not* what step 1 means. You need to
> 
> 1) parse the form data,
> 2) format it into the query the payment gateway expects,
> 3) open a connection to that gateway
> 4) send the query
> 5) parse the response
> 6) return a "so sorry" page of your own or a redirect to the CC form
>    depending on the response.
> 
> HTH!
> -- 
> Hassan Schroeder ----------------------------- hassan at webtuitive.com
> Webtuitive Design ===  (+1) 408-938-0567   === http://webtuitive.com
>                 opinion: webtuitive.blogspot.com
> 				
>                           dream.  code.
> 
> 
> -- 
> 
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