gistfile1.txt

use HTTP::UserAgent;

my @promises;
my @urls = <duckduckgo.com perl6.org perl6advent.wordpress.com>;
for @urls -> $url {
    @promises.push: start {
        my $ua = HTTP::UserAgent.new;
        my $t1 = now;
        say "Fetching $url";
        $ua.get($url);
        say "$url fetched in {now - $t1}";
    }
}

await Promise.allof(@promises);