Perl array / json Post: 302822223

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Top Forums Programming Perl array / json Post 302822223 by ab52 on Monday 17th of June 2013 06:57:40 AM

06-17-2013

Registered User

Perl array / json

Hi All

I have used the below code to print the dumper of a json

Code:

#!/usr/bin/perl

use LWP::Simple;                
use JSON qw( decode_json );     
use Data::Dumper;               
use strict;                     
use warnings;

my (%list);                 

my $trendsurl = "http://sensu:4567/events";

my $json = get( $trendsurl );
die "Could not get $trendsurl!" unless defined $json;

my $decoded_json = decode_json( $json );




print Dumper $decoded_json;

which gives me the following

Code:

$VAR1 = [                                                                                                                                                                                           
          {                                                                                                                                                                                         
            'client' => 'es1.',                                                                                                                                                            
            'flapping' => bless( do{\(my $o = 0)}, 'JSON::XS::Boolean' ),
            'check' => 'disk_usage',
            'occurrences' => 2160,
            'issued' => 1371466494,
            'status' => 1,
            'handlers' => [
                            'default'
                          ],
            'output' => 'com.dneg.es1.df.boot.df_complex.free OK
WARNING: com.dneg.es1.df.opt-elasticsearch.df_complex.free will run out of space in 10 days at current rate
com.dneg.es1.df.root.df_complex.free OK
'
          },
          {
            'client' => 'graphite1.',
            'flapping' => $VAR1->[0]{'flapping'},
            'check' => 'disk_usage',
            'occurrences' => 7028,
            'issued' => 1371466494,
            'status' => 1,
            'handlers' => [
                            'default'
                          ],
            'output' => 'com.dneg.graphite1.df.boot.df_complex.free OK
com.dneg.graphite1.df.root.df_complex.free OK
WARNING: com.dneg.graphite1.df.user_data.df_complex.free will run out of space in 12 days at current rate
'
          },

I am now stuck in how to use that data, i want to extract the client and the Warning

i.e

client' => 'graphite1.
WARNING: fee will run out of space in 12 days at current rate

any pointers would be great

Thanks
ADam

ab52

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json_pp

JSON_PP(1)						 Perl Programmers Reference Guide						JSON_PP(1)

NAME

       json_pp - JSON::PP command utility

SYNOPSIS

	   json_pp [-v] [-f from_format] [-t to_format] [-json_opt options_to_json]

DESCRIPTION

       json_pp converts between some input and output formats (one of them is JSON).  This program was copied from json_xs and modified.

       The default input format is json and the default output format is json with pretty option.

OPTIONS

   -f
	   -f from_format

       Reads a data in the given format from STDIN.

       Format types:

       json
	   as JSON

       eval
	   as Perl code

   -t
       Writes a data in the given format to STDOUT.

       null
	   no action.

       json
	   as JSON

       dumper
	   as Data::Dumper

   -json_opt
       options to JSON::PP

       Acceptable options are:

	   ascii latin1 utf8 pretty indent space_before space_after relaxed canonical allow_nonref
	   allow_singlequote allow_barekey allow_bignum loose escape_slash

   -v
       Verbose option, but currently no action in fact.

   -V
       Prints version and exits.

EXAMPLES

	   $ perl -e'print q|{"foo":"XX","bar":1234567890000000000000000}|' |
	      json_pp -f json -t dumper -json_opt pretty,utf8,allow_bignum

	   $VAR1 = {
		     'bar' => bless( {
				       'value' => [
						    '0000000',
						    '0000000',
						    '5678900',
						    '1234'
						  ],
				       'sign' => '+'
				     }, 'Math::BigInt' ),
		     'foo' => "x{3042}x{3044}"
		   };

	   $ perl -e'print q|{"foo":"XX","bar":1234567890000000000000000}|' |
	      json_pp -f json -t dumper -json_opt pretty

	   $VAR1 = {
		     'bar' => '1234567890000000000000000',
		     'foo' => "x{e3}x{81}x{82}x{e3}x{81}x{84}"
		   };

SEE ALSO

       JSON::PP, json_xs

AUTHOR

       Makamaka Hannyaharamitu, <makamaka[at]cpan.org>

COPYRIGHT AND LICENSE

       Copyright 2010 by Makamaka Hannyaharamitu

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2014-09-30								JSON_PP(1)

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