I'm not sure if this will fit your needs, but here's one possible solution. I added one new line to your code and modified another, both marked with ### <--.
#!/usr/bin/perl

use strict;
use warnings;

use LWP;
use HTTP::Request::Common;
use Encode;
use charnames qw(greek);

use URI::Escape qw(uri_escape_utf8); ### <-- new line

binmode(STDOUT, ":utf8");

my $utf8_data = "<\N{alpha}\N{beta}\N{gamma}\N{delta}>";

print $utf8_data, "\n\n";

print Encode::is_utf8($utf8_data)
        ? "\$utf8_data marked as UTF-8\n\n"
        : "\$utf8_data not marked as UTF-8\n\n";

my $request = POST("http://localhost/test",
                    Content => [
                                data      => uri_escape_utf8($utf8_dat
+a), ### <-- modified line
                                more_data => "some more data",
                              ]
                  );

my $req_string = $request->as_string();

print Encode::is_utf8($req_string)
        ? "\$req_string marked as UTF-8\n\n"
        : "\$req_string not marked as UTF-8\n\n";

print $req_string, "\n";

[download]

In reply to Re: HTTP::Request::Common::POST and UTF-8 by kwaping
in thread HTTP::Request::Common::POST and UTF-8 by scollyer

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