Add response method

[comewalk]

#16 is not good enough. execute method should return contents of response.

If you want to know either 204 (No Content) or any errors, it need to check status code like below.

my $content = $api->execute().
unless ($content) {
  if ($api->response->is_no_content) {
     # success
  } else {
    # error
  }
}

I will add response method that returns response data includes headers, status, content.

[ljanvier]

I don't think this has been written to be used like that. In case of an error, it would die. So $content doesn't have to be an object since you can test if an error happened:

    my $content = eval { $api->execute() };
    unless($@) {
        # $content should be used
    }else{
        # error
    }