thanx for the info. I just found the paypaldev.org site. There's a paypal guy on the forum there, and a bit of discussion too.
Adam
On 01/24/2004 04:57 PM [EMAIL PROTECTED] wrote:
Hi Adam,
You can use the IPN feature in Paypal.
1) Go to merchant tools and click on the IPN technical overview.You will get a link to activate the IPN from there. There you have to specify a URL which accepts post parameters.
2) Paypal posts the customer information (except credit card), transaction status, transaction id and a encrypted token.
3) You can have a Struts action mapping for that URL to handle the data and persist it on your side.
4) Then send a HTTP Post to httsp://paypal.../webscr along with the encrypted token.
5) Paypal will reply back with a SINGLE word : COMPLETED or INVALID. (although txn was completed in 3, this is a check to prevent spoofing. If you get INVALID, then it is a suspicious case)
6) You can do any processing for the customer only after receiving the COMPLETED response.
Its quite easy actually. I am currently writing such a web application for my book publisher and it is going good so far.
The paypal technical overview is very informative.
Thanks, Srikanth
============================= Srikanth Shenoy Author: Struts Survival Guide ObjectSource Publications http://www.objectsource.com =============================
Adam Hardy wrote:
Sorry it's a bit OT but I know of no other forum where I might find java developers doing e-commerce. googling brings up only rubbish or purchasable solutions (could be my search terms though...)
I'm trying to figure out a way of incorporating paypal into my e-commerce site, but it is difficult to automate, since paypal handles the payment transaction on their own site and the only feedback returned is (1) customer forwarded to either my own success-page or cancel-page and (2) paypal email to me
Has anybody set up an e-commerce site with paypal that handles this?
I'm thinking of using user sessions, transactions tokens and so on to try to handle it.
Thanks Adam
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