
=pod

=head1 NAME

MojoX::JSON::RPC - Perl implementation of JSON-RPC 2.0 protocol for Mojolicious

=head1 SYNOPSIS

Server as plugin (L<Mojolicious::Plugin::JsonRpcDispatcher>):

    #!/usr/bin/env perl
    use Mojolicious::Lite;
    use MojoX::JSON::RPC::Service;

    plugin 'json_rpc_dispatcher' => {
        services => {
            '/jsonrpc' => MojoX::JSON::RPC::Service->new->register(
                'sum',
                sub {
                    my @params = @_;
                    my $sum    = 0;
                    $sum += $_ for @params;
                    return $sum;
                }
            )
        }
    };

    app->start;

Client (L<MojoX::JSON::RPC::Client>):

    #!/usr/bin/env perl
    use MojoX::JSON::RPC::Client;

    my $client = MojoX::JSON::RPC::Client->new;
    my $url    = 'http://www.example.com/jsonrpc';
    my $callobj = {
        id      => 1,
        method  => 'sum',
        params  => [ 17, 25 ]
    };

    my $res = $client->call($url, $callobj);

    if($res) {
        if ($res->is_error) { # RPC ERROR
            print 'Error : ', $res->error_message;
        }
        else {
            print $res->result;
        }
    }
    else {
        my $tx_res = $client->tx->res; # Mojo::Message::Response object
        print 'HTTP response '.$tx_res->code.' '.$tx_res->message;
    }

Non-blocking client:

    #!/usr/bin/env perl
    use MojoX::JSON::RPC::Client;

    my $client = MojoX::JSON::RPC::Client->new;
    my $url    = 'http://www.example.com/jsonrpc';
    my $callobj = {
        id      => 1,
        method  => 'sum',
        params  => [ 17, 25 ]
    };

    $client->call($url, $callobj, sub {
        # With callback
        my $res = pop;

        if($res) {
            if ($res->is_error) { # RPC ERROR
                print 'Error : ', $res->error_message;
            }
            else {
                print $res->result;
            }
        }
        else {
           my $tx_res = $client->tx->res; # Mojo::Message::Response object
           print 'HTTP response '.$tx_res->code.' '.$tx_res->message;
        }

        Mojo::IOLoop->stop;
    });

    Mojo::IOLoop->start;

=head1 DESCRIPTION

This module implments a client and a server plugin for JSON-RPC 2.0 for use
with Mojolicious.

This module follows the draft specficiation for JSON-RPC 2.0. More information
can be found at L<http://groups.google.com/group/json-rpc/web/json-rpc-2-0>.

=head1 SEE ALSO

L<Mojolicious::Plugin::JsonRpcDispatcher>, L<MojoX::JSON::RPC::Dispatcher>,
L<MojoX::JSON::RPC::Client>

=head1 AUTHOR

Henry Tang

=head1 COPYRIGHT & LICENSE

Copyright (C) 2011 Henry Tang.

MojoX::JSON::RPC is provided "as is" and without any express or
implied warranties, including, without limitation, the implied warranties
of merchantibility and fitness for a particular purpose.

This program is free software, you can redistribute it and/or modify it
under the terms of the Artistic License version 2.0.

=cut
