Here is an example of a CGI script that accepts JSON via HTTP POST, reads two numbers "a" and "b" from the input, and adds them together returning "c", plus an example client that uses the script...

#!/usr/bin/env perl

use strict;
use warnings;

use CGI ();
use JSON ();

my $q     = CGI->new;
my $json  = JSON->new->utf8;
my $input = $json->decode( $q->param('POSTDATA') );

my $a = $input->{a};
my $b = $input->{b};
my $c = $a + $b;

print $q->header("application/json");
print $json->encode({ c => $c });

[download]
#!/usr/bin/env perl

use strict;
use warnings;

use JSON ();
use LWP::UserAgent ();
use HTTP::Request::Common qw( POST );

my $data = { a => 40, b => 2 };

my $json = JSON->new->utf8;
my $ua   = LWP::UserAgent->new;

my $req = POST(
    "http://buzzword.org.uk/2013/json-addition.cgi",
    Content_Type => 'application/json',
    Content      => $json->encode($data),
);

my $result = $json->decode( $ua->request($req)->decoded_content );
print $result->{c}, "\n";

[download]
package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

In reply to Re: Getting error while decoding JSON object via POST method by tobyink
in thread Getting error while decoding JSON object via POST method by perlCrazy

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