#!/usr/bin/perl
 #--------------------------
 # In your application class
 package MyApp;

 sub own_method { # called by clients
     my ($server, @params) = @_; # $server is JSONRPC object.
     return 5;
     # return a scalar value or a hashref or an arryaref.
 }

1;

##</code><code>##

#!/usr/bin/perl

 use JSONRPC::Transport::HTTP;
 use MyApp;

 # a la XMLRPC::Lite
 JSONRPC::Transport::HTTP::CGI->dispatch_to('MyApp')->handle();

##</code><code>##

#!/usr/bin/perl

 ##################
 # Daemon version #
 ##################

 use strict;
 use lib qw(. ./lib);
 use JSONRPC::Transport::HTTP;

 my $daemon = JSONRPC::Transport::HTTP::Daemon
        ->new(LocalPort => 8080)
        ->dispatch_to('MyApp/Test');

 $daemon->handle();

##</code><code>##

#!/usr/bin/perl

 use JSONRPC::Transport::HTTP;
 my $uri = 'http://127.0.0.1:8080/MyApp/Test/';

 my $res = JSONRPC::Transport::HTTP
            ->proxy($uri)
            ->call('echo',['This is test.'])
            ->result;

 if($res->error){
   print $res->error,"\n";
 }
 else{
   print $res->result,"\n";
 }

 # or

 my $client = JSONRPC::Transport::HTTP->proxy($uri);

 print $client->echo('This is test.'); # the alias, _echo is same.

##</code><code>##

[root@localhost ~]# client.pl
64
0
No such a method.
64
0

##</code><code>##

[root@localhost ~]# server.pl
[root@localhost ~]# server.pl
Status: 500
Content-Type: text/plain; charset=UTF-8