LWP::Debug (3)
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NAME
LWP::Debug - deprecatedDESCRIPTION
LWP::Debug is used to provide tracing facilities, but these are not used byLWP
any more. The code in this module is kept around
(undocumented) so that 3rd party code that happens 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 provides some hints about recommended replacements.
Network traffic monitoring
The best way to monitor the network traffic thatLWP
generates is to
use an external TCP
monitoring program. The Wireshark program
(<www.wireshark.org>) is highly 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");