SOAP API directResponse documentation

[davidgauvreau1]

I'm trying to find the documentation for the SOAP API and it seems to be removed from the website.

I have to fix a bug in an old implementation using the SOAP API and I'd like to know what are each separated values in the directResponse field of the response when a call to the API is done. 

Is there somewhere I can find this information?

[davidgauvreau1]

To clarify my question, what I need to know is how can I know if a transaction is a success from the directResponse.

In the current implementation, we check the resultCode but I discover that this value can be Ok even if the transaction was not a success, for example if I try to do a second post-auth on a pre-auth. In this case I receive the Ok resultCode but the directResponse contains a message "This transaction has already been captured".