The query can also be a standard http text/html call, with the attribute 'xmlrpc'. This was added to permit easy requests using a standard html GET or POST query:
- The value for the 'xmlrpc' attribute is just a xmlrpc text, urlsafe base64 encoded.
- The method can be either GET or POST.
- The reply is just plain xmlrpc.
A real (GET) call would look like this:
In the case of a GET query, the xmlrpc value has to be base64 encoded, but be cautious: it has to use the url-safe base64 RFC 3548 ('+' replaced by '-' and '/' replaced by '_'), and the URI size can be limited.