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

by trammell (Priest)
on Jan 10, 2006 at 15:08 UTC ( [id://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;

[download]
I'm assuming that the page actually has content here. If it's an empty string, the test should be 
... unless defined($doc);

[download]
The documenation in LWP::Simple does suggest using LWP::UserAgent if you need more information about the return code. Just a thought.

Replies are listed 'Best First'.
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;                           
 }

    [download]
    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";

    [download]
    Otherwise you receive a 500 Internal Server Error. Thanks again for the help!
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