use warnings;
use strict;
use LWP;
use HTTP::Message;
# For TLS connection
use LWP::Protocol::https;
use Crypt::SSLeay;

# TLS stuff
$ENV{HTTPS_DEBUG}   = 1;
$ENV{HTTPS_VERSION} = 3;
$ENV{'HTTPS_CERT_FILE'} = '/opt/CT/certs/EHR_ICA.ihe.net.pem';
$ENV{'HTTPS_KEY_FILE'}  = '/opt/CT/requests/EHR_ICA.ihe.net.pem';

my $req = HTTP::Request->new(POST => $self->{'endpoint'});
# ...