NAME¶
LWP::Debug - deprecated
DESCRIPTION¶
LWP::Debug used to provide tracing facilities, but these are not used by LWP any
more. The code in this module is kept around (undocumented) so that 3rd party
code that happen to use the old interfaces continue to run.
One useful feature that LWP::Debug provided (in an imprecise and troublesome
way) was network traffic monitoring. The following section provide some hints
about recommened replacements.
Network traffic monitoring¶
The best way to monitor the network traffic that LWP generates is to use an
external TCP monitoring program. The Wireshark program
(<
http://www.wireshark.org/>) is higly recommended for this.
Another approach it to use a debugging HTTP proxy server and make LWP direct all
its traffic via this one. Call "$ua->proxy" to set it up and then
just use LWP as before.
For less precise monitoring needs just setting up a few simple handlers might
do. The following example sets up handlers to dump the request and response
objects that pass through LWP:
use LWP::UserAgent;
$ua = LWP::UserAgent->new;
$ua->default_header('Accept-Encoding' => scalar HTTP::Message::decodable());
$ua->add_handler("request_send", sub { shift->dump; return });
$ua->add_handler("response_done", sub { shift->dump; return });
$ua->get("http://www.example.com");
SEE ALSO¶
LWP::UserAgent