handleRequest() 
# looks like this:
{
 $jsonDecodedParameters = $J->decode($parameters);

my $result = executeFunction($fun, $jsonDecodedParameters);

if(ref $result eq ref {} && defined $result->{$HTTP_REQUEST_REDIRECT_URL_KEY}) {
        $jsonEncodedResult = $J->encode($result);

 returns this $jsonEncodedResult 
}