Nice work, Dave and Tim.
Here's a question that just popped into my head: How do you test this
code without moving money around? How will I know my installation will
work? Is there a way to fake it?
Chas.
Tim Perrett wrote:
> Just for completness sakes, if your reading this and thinking your not
> sure what ITN is, that would be because dave meant to say "IPN".
>
> The only think I have to say is that perhaps we should change "PayPal"
> to be "Paypal" so that the style throughout the code is consistent?
> Otherwise, thats sterling work; really like what you've done with the
> DispatchPf stuff - had no idea that you could break it out into parts
> of the framework like that. Super sweet!
>
> I've just updated Paypal.scala with a bunch more scala docs too.
>
> Cheers
>
> Tim
>
> On Oct 23, 1:27 am, "David Pollak" <[EMAIL PROTECTED]>
> wrote:
>> Folks,
>>
>> I took the excellent stuff that Tim did for the PayPal stuff and refined it
>> even more... and made it a tad more "Lift-ish".
>>
>> PayPal has two mechanisms for talking to it. PDT and ITN.
>>
>> PDT transactions happen when a customer finishes an PayPal transaction and
>> returns to your site. The browser has 2 parameters (tx and at). You can
>> ask PayPal if the transaction was really authorized by making a "PDT" call.
>>
>> You would do this in the following way:
>> PaypalDataTransfer(at, tx, PaypalSandbox, PaypalSSL)
>>
>> This will return a PaypalResponse. The PaypalResponse can be queried for a
>> PayPalInfo object via: PaypalResponse.payPalInfo: Can[PayPalInfo] If the
>> transaction was successful, you'll get the information about the transaction
>> from the PayPalInfo (name, address, transaction amount, etc.)
>>
>> ITN transactions are initiated by PayPal and are POST requests made on your
>> site. As PayPal processes various transactions, it will make POSTs on your
>> server. You must verify these transactions (or else someone could spoof
>> PayPal transactions on your site) by asking PayPal if it made the POST.
>> Once PayPal verifies the transaction, you take some action (e.g., updating
>> an account value).
>>
>> To do this:
>>
>> object MyPayPalHandler extends PayPal {
>> import PaypalTransactionStatus._
>> def actions = {
>> case (ClearedPayment, info, _) => // write the payment to the database
>> case (RefundedPayment, info, _) => // process refund
>> }
>>
>> }
>>
>> and in Boot:
>>
>> LiftRules.statelessDispatchTable = MyPayPalHandler orElse
>> LiftRules.statelessDispatchTable
>>
>> Each time PayPal does an ITN on your server, the action will be performed
>> (after the ITN it validated).
>>
>> Questions?
>>
>> Thanks,
>>
>> David
>>
>> --
>> Lift, the simply functional web frameworkhttp://liftweb.net
>> Collaborative Task Managementhttp://much4.us
>> Follow me:http://twitter.com/dpp
>> Git some:http://github.com/dpp
> >
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