Parsing this kind of data - perl

Question

I have written a wrapper for an API. Previously I'd worked on simple string-based GET requests to PHP scripts using Perl.
As part of analysing the response, I have to analyse the following data which appears to be an object. Unfortunately, I'm not sure how to extract usable data from this.
print Dumper on the data returns this:
$VAR1 = bless( {
'_rc' => '200',
'_request' => bless( {
'_uri_canonical' => bless( do{\(my $o = 'http://example.com/?list=1&token=h_DQ-3lru6uy_Zy0w-KXGbPm_b9llY3LAAAAALSF1roAAAAANxAtg49JqlUAAAAA')}, 'URI::http' ),
'_content' => '',
'_uri' => $VAR1->{'_request'}{'_uri_canonical'},
'_method' => 'GET',
'_headers' => bless( {
'accept-charset' => 'iso-8859-1,*,utf-8',
'accept' => 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png, */*',
'cookie' => 'GUID=cHoW3DLOljP4K9LzposM',
'user-agent' => 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20041107 Firefox/1.0',
'authorization' => 'Basic YWRtaW46bmljb2xl',
'cookie2' => '$Version="1"',
'::std_case' => {
'cookie' => 'Cookie',
'cookie2' => 'Cookie2'
},
'accept-language' => 'en-US'
}, 'HTTP::Headers' )
}, 'HTTP::Request' ),
'_headers' => bless( {
'client-peer' => 'myip:8085',
'content-type' => 'text/plain',
'cache-control' => 'no-cache',
'connection' => 'keep-alive',
'client-date' => 'Sat, 18 Jul 2015 12:41:00 GMT',
'::std_case' => {
'client-response-num' => 'Client-Response-Num',
'set-cookie2' => 'Set-Cookie2',
'client-date' => 'Client-Date',
'client-peer' => 'Client-Peer',
'set-cookie' => 'Set-Cookie'
},
'client-response-num' => 1,
'content-length' => '8684'
}, 'HTTP::Headers' ),
'_msg' => 'OK',
'_protocol' => 'HTTP/1.1',
'_content' => '{"build":30470,"torrents": [
["043CC5FA0C741CDAD9D2E5CC20DF64A4A400FA34",136,"Epi.S01E03.720p.HDTV.x264-IMMERSE[rarbg]",690765843,39,26951680,671744,24,0,0,0,"",0,1454,0,114,2436,1,663814163,"","","Stopped","512840d7",1437022635,0,"","/mydir/Epi.S01E03.720p.HDTV.x264-IMMERSE[rarbg]",0,"0368737A",false],
["097AA60280AE3E4BA8741192CB015EE06BD9F992",200,"Epi.S01E04.HDTV.x264-KILLERS[ettv]",221928759,1000,221928759,8890308649,40059,0,0,0,"",0,1461,0,4395,65536,-1,0,"","","Queued Seed","512840d8",1437022635,1437023190,"","/mydir/Epi.S01E04.HDTV.x264-KILLERS[ettv]",0,"8F52310A",false]],
"label": [],"torrentc": "350372445"
,"rssfeeds": []
,"rssfilters": []
}
',
'_msg' => 'OK',
'_protocol' => 'HTTP/1.1'
}, 'HTTP::Response' );
I would like to extract each of the following strings from the returned object
097AA60280AE3E4BA8741192CB015EE06BD9F992
200
Epi.S01E04.HDTV.x264-KILLERS[ettv]
Unfortunately, my understanding of objects in Perl is very elementary.
The original code which returns this data looks like this:
my $ua = LWP::UserAgent->new();
my $response = $ua->get( $url, #ns_headers );
print Dumper($response);
How can I work on the strings that of interest?

Answer 1

If you read the documentation for HTTP::Response, you will see that there is a content method, which will return the content of your HTTP message, and a decoded_content method that does the same but also decompresses the data if it happens to be compressed (in your case the data is uncompressed.)
In this case it looks like the content is encoded as JSON data, so you will also need to load the JSON module to decode it into a Perl data structure
For example
use JSON 'from_json';
my $content = from_json $response->decoded_content;
my $torrents = $content->{torrents};
for my $torrent ( #$torrents ) {
say for #$torrent[0,1,2];
say '';
}
output
043CC5FA0C741CDAD9D2E5CC20DF64A4A400FA34
136
Epi.S01E03.720p.HDTV.x264-IMMERSE[rarbg]
097AA60280AE3E4BA8741192CB015EE06BD9F992
200
Epi.S01E04.HDTV.x264-KILLERS[ettv]