HTTP Headers Using WWW::Mechanize

Description:

It isn't readily apparent from the docs how to get at the HTTP headers while using WWW::Mechanize. The miscellaneous add_header and delete_header likely don't do what you want. The following snippet gets you a complete list of headers and their values as well as shows you how to get a specific value if you know the header key in advance.

#!/usr/bin/perl
use strict;
use warnings;
use WWW::Mechanize;

my $mech = WWW::Mechanize->new( autocheck => 1 );
$mech->get( 'http://www.perlmonks.org/' );

my $response = $mech->response();
for my $key ( $response->header_field_names() ) {
    print $key, " : ", $response->header( $key ), "\n";
}
# Or if you know the header key in advance
my $header = $mech->response()->header( 'key' );

Comment on HTTP Headers Using WWW::Mechanize Download Code

Replies are listed 'Best First'.
Re: HTTP Headers Using WWW::Mechanize by holli (Abbot) on Jan 31, 2005 at 18:26 UTC
did you think of sending that as a documentation-patch to Andy Lester? holli, regexed monk	[reply]
Re^2: HTTP Headers Using WWW::Mechanize by Limbic~Region (Chancellor) on Jan 31, 2005 at 18:31 UTC
holli, Thanks. I thought of that as well and had already /msg'd him with a pointer to this thread. Not sure if Andy would prefer to add more miscellaneous methods, modify the documentation, add to the FAQ, or something else entirely. Cheers - L~R	[reply]
Re: HTTP Headers Using WWW::Mechanize by merlyn (Sage) on Jan 31, 2005 at 19:48 UTC
What's wrong with: `$mech->response->headers->as_string` [download] ? -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply] [d/l]
Re^2: HTTP Headers Using WWW::Mechanize by Limbic~Region (Chancellor) on Jan 31, 2005 at 20:08 UTC
merlyn, What's wrong with: `$mech->response->headers->as_string`? Nothing, except it solves a problem other than the one I was going after (see Description). First, the docs for WWW::Mechanize leave a little to be desired as far as getting at the headers in the first place. You have to know that the HTTP::Response object returned by the response() method has what you are looking for. Second, the intention by accessing them by key was just to get the value you wanted as per the Description. In this particular case, water was after the p3p key. Of course you could parse the results of the as_string method, but why? Cheers - L~R	[reply] [d/l]
Re^3: HTTP Headers Using WWW::Mechanize by petdance (Parson) on Jan 31, 2005 at 21:36 UTC
Patches welcome. If something's unclear, please send me updates to the doc that expand on it. It's hard for me, as the author, to know what people need to know, or if it's not as clear as should be. xoxo, Andy	[reply]
Re^4: HTTP Headers Using WWW::Mechanize by Limbic~Region (Chancellor) on Feb 01, 2005 at 14:19 UTC


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