recaptcha:key/2

http
- recaptcha.pl -- Add reCAPTCHA functionality to a form

key(+Which, -Key) is det[multifile, library(http/recaptcha)]

This hook must unify Key to the reCAPTCHA public key if Which us public and to the reCAPTCHA private key if Which is private.

We leave the key handling to a hook to accomodate different ways for storing and transferring the keys. A simple implementation is:

:- use_module(library(http/recaptcha)).

:- multifile recaptcha:key/2.

recaptcha:key(public,  'Public key goes here').
recaptcha:key(private, 'Private key goes here').

When missing, a reserved test key pair is used.