HTTP: :REQUEST

meanroc has asked for the wisdom of the Perl Monks concerning the following question:

Hello guys, I was reading a code, and a do not understand this:

my $url=<STDIN>;

my $req=HTTP::Request->new(GET=>$url);
my $ua=LWP::UserAgent->new();
$ua->timeout(15);
my $response=$ua->request($req);
[download]

What this make? Please, can you explain me? And what is the difference of use this code to use:

#!/usr/bin/perl
use LWP::Simple;

my $url=<STDIN>;
my $resul=get $url;
[download]

Tks.

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Re: HTTP: :REQUEST by kcott (Archbishop) on Jan 25, 2014 at 23:43 UTC
G'day meanroc, I don't know which part of that code you "do not understand". The documentation for HTTP::Request and LWP::UserAgent have details. The first line reads input; the next two lines have constructors; the fourth line sets a timeout: these seem very straightforward but please specify if any of those are where your problem lies. The fifth line returns a response object. Perhaps this is where you're having difficulties. The two links above discuss this; HTTP::Response has details. Regarding the second code fragment, the documentation for LWP::Simple has details (as the name suggests, this provides a simplified interface). The `get()` method returns content (not a response object). -- Ken	[reply] [d/l]

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Re: HTTP: :REQUEST
by kcott (Archbishop) on Jan 25, 2014 at 23:43 UTC

G'day meanroc,

I don't know which part of that code you "do not understand".

The documentation for HTTP::Request and LWP::UserAgent have details.

The first line reads input; the next two lines have constructors; the fourth line sets a timeout: these seem very straightforward but please specify if any of those are where your problem lies.

The fifth line returns a response object. Perhaps this is where you're having difficulties. The two links above discuss this; HTTP::Response has details.

Regarding the second code fragment, the documentation for LWP::Simple has details (as the name suggests, this provides a simplified interface). The get() method returns content (not a response object).

-- Ken

[reply]
[d/l]