NAME
    XML::RPC::Fast - Fast and modular implementation for an XML-RPC client
    and server

VERSION
    Version 0.6

SYNOPSIS
    Generic usage

        use XML::RPC::Fast;

    my $server = XML::RPC::Fast->new( undef, %args );
        my $client = XML::RPC::Fast->new( $uri,  %args );

    Create a simple XML-RPC service:

        use XML::RPC::Fast;

    my $rpc = XML::RPC::Fast->new(
        undef,                         # the url is not required by server
        external_encoding => 'koi8-r', # any encoding, accepted by Encode
        #internal_encoding => 'koi8-r', # not supported for now
        );
        my $xml = do { local $/; <STDIN> };
        length($xml) == $ENV{CONTENT_LENGTH} or warn "Content-Length differs from actually received";

    print "Content-type: text/xml; charset=$rpc->{external_encoding}\n\n";
        print $rpc->receive( $xml, sub {
        my ( $methodname, @params ) = @_;
        return { you_called => $methodname, with_params => \@params };
        } );

    Make a call to an XML-RPC service:

        use XML::RPC::Fast;

    my $rpc = XML::RPC::Fast->new(
        'http://your.hostname/rpc/url'
        );

    # Syncronous call
        my @result = $rpc->req(
        call => [ 'examples.getStateStruct', { state1 => 12, state2 => 28 } ],
        url => 'http://...',
        );

    # Syncronous call (compatibility method)
        my @result = $rpc->call( 'examples.getStateStruct', { state1 => 12, state2 => 28 } );

    # Syncronous or asyncronous call
        $rpc->req(
        call => ['examples.getStateStruct', { state1 => 12, state2 => 28 }],
        cb   => sub {
            my @result = @_;
        },
        );

    # Syncronous or asyncronous call (compatibility method)
        $rpc->call( sub {
        my @result = @_;

    }, 'examples.getStateStruct', { state1 => 12, state2 => 28 } );

DESCRIPTION
    XML::RPC::Fast is format-compatible with XML::RPC, but may use different
    encoders to parse/compose xml. Curerntly included encoder uses
    XML::LibXML, and is 3 times faster than XML::RPC and 75% faster, than
    XML::Parser implementation

METHODS
  new ($url, %args)
    Create XML::RPC::Fast object, server if url is undef, client if url is
    defined

  req( %ARGS )
    Clientside. Make syncronous or asyncronous call (depends on UA).

    If have cb, will invoke $cb with results and should not croak

    If have no cb, will return results and croak on error (only syncronous
    UA)

    Arguments are

    call => [ methodName => @args ]
        array ref of call arguments. Required

    cb => $cb->(@results)
        Invocation callback. Optional for syncronous UA. Behaviour is same
        as in call with $cb and without

    url => $request_url
        Alternative invocation URL. Optional. By default will be used
        defined from constructor

    headers => { http-headers hashref }
        Additional http headers to request

    external_encoding => '...,
        Specify the encoding, used inside XML container just for this
        request. Passed to encoder

  call( 'method_name', @arguments ) : @results
    Clientside. Make syncronous call and return results. Croaks on error.
    Just a simple wrapper around "req"

  call( $cb->(@res), 'method_name', @arguments ): void
    Clientside. Make syncronous or asyncronous call (depends on UA) and
    invoke $cb with results. Should not croak. Just a simple wrapper around
    "req"

  receive ( $xml, $handler->($methodName,@args) ) : xml byte-stream
    Serverside. Process received XML and invoke $handler with parameters
    $methodName and @args and returns response XML

    On error conditions $handler could set $XML::RPC::Fast::faultCode and
    die, or return "rpcfault($faultCode,$faultString)"

        ->receive( $xml, sub {
        # ...
        return rpcfault( 3, "Some error" ) if $error_condition
        $XML::RPC::Fast::faultCode = 4 and die "Another error" if $another_error_condition;

        return { call => $methodname, params => \@params };
        })

  registerType
    Proxy-method to encoder. See XML::RPC::Enc

  registerClass
    Proxy-method to encoder. See XML::RPC::Enc

OPTIONS
    Below is the options, accepted by new()

  ua
    Client only. Useragent object, or package name

        ->new( $url, ua => 'LWP' )
        # or 
        ->new( $url, ua => 'XML::RPC::UA::LWP' )
        # or 
        ->new( $url, ua => XML::RPC::UA::LWP->new( ... ) )

  timeout
    Client only. Timeout for calls. Passed directly to UA

        ->new( $url, ua => 'LWP', timeout => 10 )

  useragent
    Client only. Useragent string. Passed directly to UA

        ->new( $url, ua => 'LWP', useragent => 'YourClient/1.11' )

  encoder
    Client and server. Encoder object or package name

        ->new( $url, encoder => 'LibXML' )
        # or 
        ->new( $url, encoder => 'XML::RPC::Enc::LibXML' )
        # or 
        ->new( $url, encoder => XML::RPC::Enc::LibXML->new( ... ) )

  internal_encoding NOT IMPLEMENTED YET
    Specify the encoding you are using in your code. By default option is
    undef, which means flagged utf-8 For translations is used Encode, so the
    list of accepted encodings fully derived from it.

  external_encoding
    Specify the encoding, used inside XML container. By default it's utf-8.
    Passed directly to encoder

        ->new( $url, encoder => 'LibXML', external_encoding => 'koi8-r' )

ACCESSORS
  url
    Get or set client url

  encoder
    Direct access to encoder object

  ua
    Direct access to useragent object

FUNCTIONS
  rpcfault(faultCode, faultString)
    Returns hash structure, that may be returned by serverside handler,
    instead of die. Not exported by default

CUSTOM TYPES
  sub {{ 'base64' => encode_base64($data) }}
    When passing a CODEREF as a value, encoder will simply use the returned
    hashref as a type => value pair.

  bless( do{\(my $o = encode_base64('test') )}, 'base64' )
    When passing SCALARREF as a value, package name will be taken as type
    and dereference as a value

  bless( do{\(my $o = { something =>'complex' } )}, 'base64' )
    When passing REFREF as a value, package name will be taken as type and
    XML::Hash::LX"::hash2xml(deref)" would be used as value

BUGS & SUPPORT
    Bugs reports and testcases are welcome.

    It you write your own Enc or UA, I may include it into distribution

    If you have propositions for default custom types (see Enc), send me
    patches

    See <http://rt.cpan.org> to report and view bugs.

AUTHOR
    Mons Anderson, "<mons@cpan.org>"

COPYRIGHT & LICENSE
    Copyright (c) 2008-2009 Mons Anderson.

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