Beefy Boxes and Bandwidth Generously Provided by pair Networks
good chemistry is complicated,
and a little bit messy -LW

Re^3: Checking for undef after performing get()

by trammell (Priest)
on Jan 10, 2006 at 15:08 UTC ( #522203=note: print w/ replies, xml ) Need Help??

in reply to Re^2: Checking for undef after performing get()
in thread Checking for undef after performing get()

Sure; I'd do something like:

my $doc = get(...); warn "get() failed" unless $doc;
I'm assuming that the page actually has content here. If it's an empty string, the test should be
... unless defined($doc);
The documenation in LWP::Simple does suggest using LWP::UserAgent if you need more information about the return code. Just a thought.

Comment on Re^3: Checking for undef after performing get()
Select or Download Code
Re^4: Checking for undef after performing get()
by sawtooth (Initiate) on Jan 11, 2006 at 16:21 UTC
    Yes, LWP::UserAgent was the ticket. This was the ideal solution that I was seeking:
    my $ua = LWP::UserAgent->new; my $response = $ua->get($url); if ($response->is_success){ (good things happen) } else { my $failmsg= ($response->status_line); (print the $failmsg) return; }
    BUT, for this to work, the web based script, after being triggered by the get(), must return some response that is part of the HTTP protocol. I added this line to the top of the web based script:
    print "Content-type: text/html\n\n";
    Otherwise you receive a 500 Internal Server Error. Thanks again for the help!

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://522203]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (12)
As of 2015-01-30 11:16 GMT
Find Nodes?
    Voting Booth?

    My top resolution in 2015 is:

    Results (249 votes), past polls