You can do exactly what you ask quite simply using WWW::Mechanize. Since you are only repeatedly submitting POSTs to a web service, you can accomplish your task with less overhead using LWP::UserAgent as well. Examples in the documentation should provide all the direction you need (WWW::Mechanize::Cookbook, lwpcook).

I would also comment that the way you've described your issue sounds like abuse. I'm sure that's not what you have in mind, though...

Is it OK so far?


use WWW::Mechanize;
$url = '.........';
$mech = WWW::Mechanize->new();
$mech->get( $url );

$result = $mech->submit_form
(
        form_number => 0,
        fields      => 
    {
            context    => 'Hello world',
        }
);
[download]


I'm supposed to get an html file as a response, what can I do to see if was created?

As it says in $mech->submit_form( ... ) in WWW::Mechanize, $mech->submit_form returns an HTTP::Response object. You can query that object using methods such as $result->code() and $result->content() to see what was returned.