This is one of those moments where good programming architecture and integration testing becomes obviously useful. We have a payment gateway interface and the transition to Stripe will be relatively painless after accounting for some accounting differences in how fees are charged.

Totally true. We didn't do a great job in this case. At the end, programming can be summarized in two words: interfaces and abstractions.

I agree, it really shouldn't be that painful, unless you hardcoded balanced API calls everywhere and have no abstractions at all.

Big WFIO moment.

http://scott.a16z.com/2014/03/24/were-fd-its-over-coming-bac...

Sure we can help, alternatively you may consider https://sudopay.com as well ? Just trying to be helpful..