I'm confused.
    my $json_string = $ua->get($url)->res->json;
Is $json_string in fact a string, or is it a decoded JSON object as shown in the example here, i.e., a reference to an array of arrays (in that particular example)? Your use of the $json_string->[0][0] syntax suggests the latter.

If $json_string is in fact a ref. to an AoA, you might do something like this: 

Win8 Strawberry 5.30.3.1 (64)  Mon 05/09/2022 14:30:45
C:\@Work\Perl\monks
>perl

use strict;
use warnings;

use JSON;
use Data::Dump qw(dd);

my $json_string = <<'EOJ';
[["urlkey","timestamp","original","mimetype","statuscode","digest","le
+ngth"],
 ["org,archive)/", "19970126045828", "http://www.archive.org:80/",
  "text/html", "200", "Q4YULN754FHV2U6Q5JUT6Q2P57WEWNNY", "1415"],
 ["org,archive)/", "19971011050034", "http://www.archive.org:80/",
  "text/html", "200", "XAHDNHZ5P3GSSSNJ3DMEOJF7BMCCPZR3", "1402"],
 ["org,archive)/", "19971211122953", "http://www.archive.org:80/",
  "text/html", "200", "XAHDNHZ5P3GSSSNJ3DMEOJF7BMCCPZR3", "1405"]]
EOJ

my $ar_decoded_json = decode_json $json_string;
# dd $ar_decoded_json;  # for debug

for my $ar_jentry (@$ar_decoded_json) {  # handle each decoded JSON en
+try
    printf "\n'%s' '%s' '%s' '%s' '%s' '%s' '%s'", @$ar_jentry;
    }

^Z

'urlkey' 'timestamp' 'original' 'mimetype' 'statuscode' 'digest' 'leng
+th'
'org,archive)/' '19970126045828' 'http://www.archive.org:80/' 'text/ht
+ml' '200' 'Q4YULN754FHV2U6Q5JU
T6Q2P57WEWNNY' '1415'
'org,archive)/' '19971011050034' 'http://www.archive.org:80/' 'text/ht
+ml' '200' 'XAHDNHZ5P3GSSSNJ3DM
EOJF7BMCCPZR3' '1402'
'org,archive)/' '19971211122953' 'http://www.archive.org:80/' 'text/ht
+ml' '200' 'XAHDNHZ5P3GSSSNJ3DM
EOJF7BMCCPZR3' '1405'

[download]
(I used different formatting just to try to make things fit better and to clearly delineate the strings. Sorry about the wraparound.)

Give a man a fish:  <%-{-{-{-<

In reply to Re^3: reading a JSON object by AnomalousMonk
in thread reading a JSON object by anautismobserver

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