NAME

JSON::RPC::Server - Perl implementation of JSON-RPC sever

SYNOPSIS

# CGI version
use JSON::RPC::Legacy::Server::CGI;

my $server = JSON::RPC::Legacy::Server::CGI->new;

$server->dispatch_to('MyApp')->handle();



# Apache version
# In apache conf

PerlRequire /your/path/start.pl
PerlModule MyApp

<Location /jsonrpc/API>
     SetHandler perl-script
     PerlResponseHandler JSON::RPC::Legacy::Server::Apache
     PerlSetVar dispatch "MyApp"
     PerlSetVar return_die_message 0
</Location>



# Daemon version
use JSON::RPC::Legacy::Server::Daemon;

JSON::RPC::Legacy::Server::Daemon->new(LocalPort => 8080);
                         ->dispatch({'/jsonrpc/API' => 'MyApp'})
                         ->handle();



# FastCGI version
use JSON::RPC::Legacy::Server::FastCGI;

my $server = JSON::RPC::Legacy::Server::FastCGI->new;

   $server->dispatch_to('MyApp')->handle();

DESCRIPTION

Gets a client request.

Parses its JSON data.

Passes the server object and the object decoded from the JSON data to your procedure (method).

Takes your returned value (scalar or arrayref or hashref).

Sends a response.

Well, you write your procedure code only.

METHODS

new

Creates new JSON::RPC::Legacy::Server object.

dispatch($package)

dispatch([$package1, $package1, ...])

dispatch({$path => $package, ...})

Sets your procedure module using package name list or arrayref or hashref. Hashref version is used for path_info access.

dispatch_to

An alias to dispatch.

handle

Runs server object and returns a response.

raise_error(%hash)

return $server->raise_error(
   code => 501,
   message => "This is error in my procedure."
);

Sets an error. An error code number in your procedure is an integer between 501 and 899.

json

Setter/Getter to json encoder/decoder object. The default value is JSON object in the below way:

JSON->new->utf8

In your procedure, changes its behaviour.

$server->json->utf8(0);

The JSON coder creating method is create_json_coder.

version

Setter/Getter to JSON-RPC protocol version used by a client. If version is 1.1, returns 1.1. Otherwise returns 0.

charset

Setter/Getter to charset. Default is 'UTF-8'.

content_type

Setter/Getter to content type. Default is 'application/json'.

return_die_message

When your program dies in your procedure, sends a return object with error message 'Procedure error' by default.

If this option is set, uses die message.

sub your_procedure {
    my ($s) = @_;
   $s->return_die_message(1);
   die "This is test.";
}

retrieve_json_from_post

It is used by JSON::RPC::Legacy::Server subclass.

retrieve_json_from_get

In the protocol v1.1, 'GET' request method is also allowable.

It is used by JSON::RPC::Legacy::Server subclass.

response

It is used by JSON::RPC::Legacy::Server subclass.

request

Returns HTTP::Request object.

path_info

Returns PATH_INFO.

max_length

Returns max content-length to your application.

translate_error_message

Implemented in your subclass. Three arguments (server object, error code and error message) are passed. It must return a message.

sub translate_error_message {
    my ($s, $code, $message) = @_;
    return $translation_jp_message{$code};
}

create_json_coder

(Class method) Returns a JSON de/encoder in new. You can override it to use your favorite JSON de/encode.

RESERVED PROCEDURE

When a client call a procedure (method) name 'system.foobar', JSON::RPC::Legacy::Server look up MyApp::system::foobar.

http://json-rpc.org/wd/JSON-RPC-1-1-WD-20060807.html#ProcedureCall

http://json-rpc.org/wd/JSON-RPC-1-1-WD-20060807.html#ServiceDescription

There is JSON::RPC::Legacy::Server::system::describe for default response of 'system.describe'.

SEE ALSO

JSON

http://json-rpc.org/wd/JSON-RPC-1-1-WD-20060807.html

http://json-rpc.org/wiki/specification

AUTHOR

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

COPYRIGHT AND LICENSE

Copyright 2007-2008 by Makamaka Hannyaharamitu

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