curl -X POST \
  -H "Content-Type: multipart/form-data" \
  -H "ABC_APP_ID: <Application_ID>" \
  -H "IABC_APP_PASSWORD: <Application_Password>" \
  -F "deliverable_file=@sample.xml" \
  -F "data_transaction_code=SOA" \
  -F "file_name=RRR-xxxxxxxxxx.mmddyyyy-hhmmss.ext" \
  -F "agency_task_order_parameter=12345667890" \
  -F "contractor_service_request_number=123456780123456789" \
  -F "deliverable_type=Notification" \
  -F "data_transaction_file_date=2016-01-21" \
  -F "tags=\"tagSample1\", \"tagSample2\"" \
   "http://<server>:<port>/cdx/abc/gsa/deliverables"

##</code><code>##

#!/usr/bin/perl

use strict; use warnings;
use REST::Client;

my $server               = 'localhost';
my $port                 = '7999';
my $path                 = '/cdx/abc/gsa/deliverables';
my $application_id       = '...';
my $application_password = '...';

my %fields = (
  deliverable_file                  => "sample.xml",
  data_transaction_code             => "SOA",
  file_name                         => "RRR-xxxxxxxxxx.mmddyyyy-hhmmss.ext",
  agency_task_order_parameter       => "12345667890",
  contractor_service_request_number => "123456780123456789" ,
  deliverable_type                  => "Notification",
  data_transaction_file_date        => "2016-01-21",
  tags                              => ["tagSample1", "tagSample2"]
);

my $url = "http://$server:$port/cdx/abc/gsa/deliverables";
my $client = REST::Client->new({host => $url});
# add the headers '-H' lines
$client->addHeader('ABC_APP_ID', $application_id);
$client->addHeader('IABC_APP_PASSWORD', $application_password);
# add the fields '-F' lines
my $get_query = $client->buildQuery(%fields);  #this doesn't help for POST
$client->POST($url);