Is there a PayPal IPN code sample for Ruby on Rails?

Question

There are official code samples for several languages but couldn\'t find one for Rails.

Answer 1

IPN gem

DWilke's Paypal IPN gem can be found here:

https://github.com/dwilkie/paypal

Check out the IPN module. It's nice code:

https://github.com/dwilkie/paypal/blob/master/lib/paypal/ipn/ipn.rb

Testing against the simulator

You can test it out against the IPN simulator here:

https://developer.paypal.com/webapps/developer/applications/ipn_simulator

I use ngrok to expose localhost:3000 on a public URL, then point the simulator at it.