<div class="gmail_quote">On Mon, Dec 29, 2008 at 9:20 AM, Geoffrey S. Knauth <span dir="ltr"><<a href="mailto:geoff@knauth.org">geoff@knauth.org</a>></span> wrote:<br> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <div class="Ih2E3d">On Dec 28, 2008, at 21:12, Christopher Rasch wrote:<br> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Are there any tutorials that detail how to integrate paypal with a scheme-powered website?<br></blockquote> <br></div>What do you mean by integration?  Are there other systems that offer integration, and if so, how do they work?<br><br>I recently had to put some PayPal Buy Now buttons on a website for a conference.  These were the steps I had to do:<br> <br>- login to Paypal with conference's credentials<br>- create a bunch of buttons for different registration options<br>- - each button was basically an HTML form referencing a PayPal image and action<br>- I put the buttons in the conference's website in the appropriate places<br> <br>When users pressed the buttons, they went to the PayPal site.  Just before that happened, I saved user info so we knew that users had gone to PayPal to pay.  Later we checked PayPal emails and web pages to see if they had paid.</blockquote> <div> </div> <div>Not to get too far off topic...</div> <div> </div> <div>You may want to look into PayPal IPN - Instant Payment Notification. This is a URL you plug into PayPal's back end, and it invokes every time an event happens (like someone purchases and item or cancels a subscription).</div> <div> </div> <div>You can learn more here:</div> <div>   <a href="https://www.paypal.com/cgi-bin/webscr?cmd=p/xcl/rec/ipn-manual-outside">https://www.paypal.com/cgi-bin/webscr?cmd=p/xcl/rec/ipn-manual-outside</a></div> <div> </div> <div>Instant Payment Notification makes use of a standard HTTP POST (or maybe GET) so you can trivially plug in a scheme servlet to handle this request, if you wanted.  You should be able to automate the transfer of PayPal information into your system, in a secure way, using this approach.</div> <div> </div> <div>-Ben</div></div><br>-- <br>Have an idea for software?  I can make it happen - <a href="http://www.ideas2executables.com">http://www.ideas2executables.com</a><br>My Blog: <a href="http://benjisimon.blogspot.com">http://benjisimon.blogspot.com</a><br>