merge

17 files changed, 1227 insertions, 533 deletions

diff --git a/lib/MooseX/Net/API.pm b/lib/MooseX/Net/API.pm
index 872d83d..2dcfc13 100644
--- a/lib/MooseX/Net/API.pm
+++ b/lib/MooseX/Net/API.pm
@@ -1,424 +1,169 @@
 package MooseX::Net::API;
 
-use URI;
-use Try::Tiny;
-use HTTP::Request;
-
 use Moose;
 use Moose::Exporter;
 
-use MooseX::Net::API::Error;
-
-use MooseX::Net::API::Meta::Class;
-use MooseX::Net::API::Meta::Method;
-
-use MooseX::Net::API::Role::Serialize;
-use MooseX::Net::API::Role::Deserialize;
-
-our $VERSION = '0.10';
+our $VERSION = '0.11';
 
-my $list_content_type = {
-    'json' => 'application/json',
-    'yaml' => 'text/x-yaml',
-    'xml'  => 'text/xml',
-};
+Moose::Exporter->setup_import_methods(
+    with_meta => [qw/net_api_method net_api_declare/],
+    also      => [qw/Moose/]
+);
 
-my ( $do_auth, $base_url, $auth_method, $deserialize_method );
+sub net_api_method {
+    my $meta = shift;
+    my $name = shift;
+    $meta->add_net_api_method($name, @_);
+}
 
-Moose::Exporter->setup_import_methods(
-    with_caller => [qw/net_api_method net_api_declare/], );
+sub net_api_declare {
+    my $meta = shift;
+    my $name = shift;
+    $meta->add_net_api_declare($name, @_);
+}
 
 sub init_meta {
-    my ( $me, %options ) = @_;
+    my ($class, %options) = @_;
 
     my $for = $options{for_class};
-    Moose::Util::MetaRole::apply_metaroles(
+    Moose->init_meta(%options);
+
+    my $meta = Moose::Util::MetaRole::apply_metaroles(
         for_class       => $for,
         metaclass_roles => ['MooseX::Net::API::Meta::Class'],
     );
+
+    Moose::Util::MetaRole::apply_base_class_roles(
+        for   => $for,
+        roles => [
+            qw/
+              MooseX::Net::API::Role::UserAgent
+              MooseX::Net::API::Role::Format
+              MooseX::Net::API::Role::Authentication
+              MooseX::Net::API::Role::Serialization
+              MooseX::Net::API::Role::Request
+              /
+        ],
+    );
+
+    $meta;
 }
 
-sub net_api_declare {
-    my $caller  = shift;
-    my $name    = shift;
-    my %options = @_;
-
-    my $class = Moose::Meta::Class->initialize($caller);
-
-    $class->add_attribute(
-        'api_base_url',
-        is      => 'rw',
-        isa     => 'Str',
-        lazy    => 1,
-        default => delete $options{base_url} || ''
+1;
+
+__END__
+
+=head1 NAME
+
+MooseX::Net::API - Easily create client for net API
+
+=head1 SYNOPSIS
+
+    package My::Net::API;
+    use MooseX::Net::API;
+
+    # we declare an API, the base_url is http://exemple.com/api
+    # the format is json and it will be append to the query
+    # You can set api_base_url later, calling $obj->api_base_url('http://..')
+    net_api_declare my_api => (
+        api_base_url    => 'http://exemple.com/api',
+        api_format      => 'json',
+        api_format_mode => 'append',
     );
 
-    if ( !$options{format} ) {
-        die MooseX::Net::API::Error->new(
-            reason => "format is missing in your api declaration" );
-    }
-    elsif ( !$list_content_type->{ $options{format} } ) {
-        die MooseX::Net::API::Error->new(
-            reason => "format is not recognised. It must be "
-                . join( " or ", keys %$list_content_type ) );
-    }
-    else {
-        $class->add_attribute(
-            'api_format',
-            is      => 'ro',
-            isa     => 'Str',
-            lazy    => 1,
-            default => delete $options{format}
-        );
-    }
+    # declaring a users method
+    # calling $obj->users will call http://exemple.com/api/users/france
+    net_api_method users => (
+        description => 'this get a list of users',
+        method      => 'GET',
+        path        => '/users/:country',
+        params      => [qw/country/],
+    );
 
-    if ( !$options{format_mode} ) {
-        die MooseX::Net::API::Error->new(
-            reason => "format_mode is not set" );
-    }
-    elsif ( $options{format_mode} !~ /^(?:append|content\-type)$/ ) {
-        die MooseX::Net::API::Error->new(
-            reason => "format_mode must be append or content-type" );
-    }
-    else {
-        $class->add_attribute(
-            'api_format_mode',
-            is      => 'ro',
-            isa     => 'Str',
-            lazy    => 1,
-            default => delete $options{format_mode}
-        );
-    }
+    # you can create your own useragent (it must be a LWP::UserAgent object)
+    net_api_declare my_api => (
+        ...
+        useragent => sub {
+            my $ua = LWP::UserAgent->new;
+            $ua->agent('MyUberAgent/0.23');
+            return $ua
+        },
+        ...
+    );
 
-    if ( !$options{useragent} ) {
-        _add_useragent($class);
-    }
-    else {
-        my $method = $options{useragent};
-        if ( ref $method ne 'CODE' ) {
-            die MooseX::Net::API::Error->new(
-                reason => "useragent must be a CODE ref" );
-        }
-        else {
-            _add_useragent( $class, delete $options{useragent} );
-        }
-    }
+    # if the API require authentification, the module will handle basic
+    # authentication for you
+    net_api_declare my_api => (
+        ...
+        authentication => 1,
+        ...
+    );
 
-    if ( $options{authentication} ) {
-        $do_auth = delete $options{authentication};
-    }
+    # if the authentication is more complex, you can delegate to your own method
 
-    if ( $options{username} ) {
-        $class->add_attribute(
-            'api_username',
-            is      => 'ro',
-            isa     => 'Str',
-            lazy    => 1,
-            default => delete $options{username}
-        );
-        if ( $options{password} ) {
-            $class->add_attribute(
-                'api_password',
-                is      => 'ro',
-                isa     => 'Str',
-                lazy    => 1,
-                default => delete $options{password}
-            );
-        }
-    }
-    if ( $options{authentication_method} ) {
-        $auth_method = delete $options{authentication_method};
-    }
+    1;
 
-    if ( $options{deserialisation} ) {
-        $deserialize_method = delete $options{deserialize_order};
-    }
-    else {
-        MooseX::Net::API::Role::Deserialize->meta->apply( $caller->meta );
-    }
+    my $obj = My::Net::API->new();
+    $obj->api_base_url('http://...');
+    $obj->foo(user => $user);
 
-    if ( $options{serialisation} ) {
-        $deserialize_method = delete $options{serialize_order};
-    }
-    else {
-        MooseX::Net::API::Role::Serialize->meta->apply( $caller->meta );
-    }
-}
+=head1 DESCRIPTION
 
-sub net_api_method {
-    my $caller  = shift;
-    my $name    = shift;
-    my %options = ( authentication => $do_auth, @_ );
+MooseX::Net::API is a module to help to easily create a client for a web API.
 
-    if ( !$options{params} && $options{required} ) {
-        die MooseX::Net::API::Error->new( reason =>
-                "you can't require a param that have not been declared" );
-    }
+This module is heavily inspired by what L<Net::Twitter> does.
 
-    if ( $options{required} ) {
-        foreach my $required ( @{ $options{required} } ) {
-            die MooseX::Net::API::Error->new( reason =>
-                    "$required is required but is not declared in params" )
-                if ( !grep { $_ eq $required } @{ $options{params} } );
-        }
-    }
+B<THIS MODULE IS IN ITS BETA QUALITY. THE API MAY CHANGE IN THE FUTURE>
 
-    my $class = Moose::Meta::Class->initialize($caller);
-
-    my $code;
-    if ( !$options{code} ) {
-        $code = sub {
-            my $self = shift;
-            my %args = @_;
-
-            my $meta = $self->meta;
-
-            if ( $auth_method && !$meta->find_method_by_name($auth_method) ) {
-                die MooseX::Net::API::Error->new( reason =>
-                        "you provided $auth_method as an authentication method, but it's not available in your object"
-                );
-            }
-
-            if ( $deserialize_method
-                && !$meta->find_method_by_name($deserialize_method) )
-            {
-                die MooseX::Net::API::Error->new( reason =>
-                        "you provided $deserialize_method for deserialisation, but the method is not available in your object"
-                );
-            }
-
-            # check if there is no undeclared param
-            foreach my $arg ( keys %args ) {
-                if ( !grep { $arg eq $_ } @{ $options{params} } ) {
-                    die MooseX::Net::API::Error->new(
-                        reason => "$arg is not declared as a param" );
-                }
-            }
-
-            # check if all our params declared as required are present
-            foreach my $required ( @{ $options{required} } ) {
-                if ( !grep { $required eq $_ } keys %args ) {
-                    die MooseX::Net::API::Error->new( reason =>
-                            "$required is declared as required, but is not present"
-                    );
-                }
-            }
-
-            my $path = $options{path};
-
-            # replace all args in the url
-            my $max_iter = keys %args;
-            my $i        = 0;
-            while ($path =~ /\$(\w+)/g) {
-                my $match = $1;
-                if (my $value = delete $args{$match}) {
-                    $path =~ s/\$$match/$value/;
-                }
-                if (++$i > $max_iter) {
-                    $path =~ s/\$(\w+)//;
-                    last;
-                }
-            }
-
-            $path .= '/' if ( $self->api_base_url !~ m!/^! );
-            my $url = $self->api_base_url . $path;
-
-            my $format = $self->api_format();
-            $url .= "." . $format if ( $self->api_format_mode() eq 'append' );
-            my $uri = URI->new($url);
-
-            my $res = _request( $self, $format, \%options, $uri, \%args );
-            if ( $options{expected} ) {
-                if ( !grep { $_ eq $res->code } @{ $options{expected} } ) {
-                    die MooseX::Net::API::Error->new(
-                        reason     => "unexpected code",
-                        http_error => $res
-                    );
-                }
-            }
-
-            my $content_type = $res->headers->{"content-type"};
-            $content_type =~ s/(;.+)$//;
-
-            my @deserialize_order
-                = ( $content_type, $format, keys %$list_content_type );
-
-            my $content;
-            if ($deserialize_method) {
-                $content = $self->$deserialize_method( $res->content,
-                    @deserialize_order );
-            }
-            else {
-                $content = $self->_do_deserialization( $res->content,
-                    @deserialize_order );
-            }
-
-            if ( $res->is_success ) {
-                if (wantarray) {
-                    return ( $content, $res );
-                }
-                else {
-                    return $content;
-                }
-            }
-
-            die MooseX::Net::API::Error->new(
-                http_error => $res,
-                reason     => $content
-            );
-        };
-    }
-    else {
-        $code = $options{code};
-    }
+The following roles are added to your class:
 
-    $class->add_method(
-        $name,
-        MooseX::Net::API::Meta::Method->new(
-            name         => $name,
-            package_name => $caller,
-            body         => $code,
-            %options,
-        ),
-    );
-    $class->_add_api_method($name);
-}
+=over 4
 
-sub _add_useragent {
-    my $class = shift;
-    my $code  = shift;
-
-    if ( !$code ) {
-        try { require LWP::UserAgent; }
-        catch {
-            die MooseX::Net::API::Error->new( reason =>
-                    "no useragent defined and LWP::UserAgent is not available"
-            );
-        };
-
-        $code = sub {
-            my $ua = LWP::UserAgent->new();
-            $ua->agent("MooseX::Net::API/$VERSION (Perl)");
-            $ua->env_proxy;
-            return $ua;
-        };
-    }
-    $class->add_attribute(
-        'api_useragent',
-        is      => 'rw',
-        isa     => 'Any',
-        lazy    => 1,
-        default => $code,
-    );
-}
+=item B<MooseX::Net::API::Role::UserAgent>
 
-sub _request {
-    my ( $self, $format, $options, $uri, $args ) = @_;
+=item B<MooseX::Net::API::Role::Format>
 
-    my $req;
-    my $method = $options->{method};
+=item B<MooseX::Net::API::Role::Authentication>
 
-    if ( $method =~ /^(?:GET|DELETE)$/ || $options->{params_in_url} ) {
-        $uri->query_form(%$args);
-        $req = HTTP::Request->new( $method => $uri );
-    }
-    elsif ( $method =~ /^(?:POST|PUT)$/ ) {
-        $req = HTTP::Request->new( $method => $uri );
-        my $content = $self->_do_serialization( $args, $format );
-        $req->content($content);
-    }
-    else {
-        die MooseX::Net::API::Error->new(
-            reason => "$method is not defined" );
-    }
+=item B<MooseX::Net::API::Role::Serialization>
 
-    $req->header( 'Content-Type' => $list_content_type->{$format} )
-        if $self->api_format_mode eq 'content-type';
+=item B<MooseX::Net::API::Role::Request>
 
-    if ( $do_auth || $options->{authentication} ) {
-        if ($auth_method) {
-            $req = $self->$auth_method($req);
-        }
-        else {
-            $req = _do_authentication( $self, $req );
-        }
-    }
+=back
 
-    return $self->api_useragent->request($req);
-}
+The following attributes are added to your class:
 
-sub _do_authentication {
-    my ( $caller, $req ) = @_;
-    $req->headers->authorization_basic( $caller->api_username,
-        $caller->api_password )
-        if ( $caller->api_username && $caller->api_password );
-    return $req;
-}
+=over 4
 
-1;
-__END__
+=item B<api_base_url>
 
-=head1 NAME
+=item B<api_format>
 
-MooseX::Net::API - Easily create client for net API
+=item B<api_username>
 
-=head1 SYNOPSIS
+=item B<api_passord>
 
-  package My::Net::API;
-  use Moose;
-  use MooseX::Net::API;
-
-  # we declare an API, the base_url is http://exemple.com/api
-  # the format is json and it will be happened to the query
-  # You can set base_url later, calling $obj->api_base_url('http://..')
-  net_api_declare my_api => (
-    base_url   => 'http://exemple.com/api',
-    format     => 'json',
-    format_api => 'append',
-  );
+=item B<authentication>
 
-  # calling $obj->foo will call http://exemple.com/api/foo?user=$user&group=$group
-  net_api_method foo => (
-    description => 'this get foo',
-    method      => 'GET',
-    path        => '/foo/',
-    params      => [qw/user group/],
-    required    => [qw/user/],
-  );
+=item B<authentication_method>
 
-  # you can create your own useragent
-  net_api_declare my_api => (
-    ...
-    useragent => sub {
-      my $ua = LWP::UserAgent->new;
-      $ua->agent('MyUberAgent/0.23');
-      return $ua
-    },
-    ...
-  );
+=back
 
-  # if the API require authentification, the module will handle basic
-  # authentication for you
-  net_api_declare my_api => (
-    ...
-    authentication => 1,
-    ...
-  );
+The following methods are added to your class:
 
-  # if the authentication is more complex, you can delegate to your own method
+=over 4
 
-  1;
+=item B<http_request>
 
-  my $obj = My::Net::API->new();
-  $obj->api_base_url('http://...');
-  $obj->foo(user => $user);
+=item B<get_content>
 
-=head1 DESCRIPTION
+=item B<serialize>
 
-MooseX::Net::API is module to help to easily create a client for a web API.
-This module is heavily inspired by what L<Net::Twitter> does.
+=item B<deserialize>
 
-B<THIS MODULE IS IN ITS BETA QUALITY. THE API MAY CHANGE IN THE FUTURE>
+=item B<content_type>
+
+=back
 
 =head2 METHODS
 
@@ -426,46 +171,61 @@ B<THIS MODULE IS IN ITS BETA QUALITY. THE API MAY CHANGE IN THE FUTURE>
 
 =item B<net_api_declare>
 
-  net_api_declare backtype => (
-    base_url    => 'http://api....',
-    format      => 'json',
-    format_mode => 'append',
-  );
+    net_api_declare backtype => (
+        base_url    => 'http://api....',
+        format      => 'json',
+        format_mode => 'append',
+    );
+
+=over 2
+
+=item B<api_base_url>
+
+The base url for all the API's calls. This will set the B<api_base_url> attribut in your class. Can be set at the object creation or before calling an API method.
+
+=item B<api_format>
+
+The format for the API's calls. This will set the B<api_format> attribut to your class. Value can be:
 
 =over 2
 
-=item B<base_url> (required)
+=item B<json>
+
+=item B<yaml>
+
+=item B<xml>
 
-The base url for all the API's calls. This will add an B<api_base_url>
-attribut to your class.
+=back
+
+=item B<api_format_mode>
 
-=item B<format> (required, must be either xml, json or yaml)
+How the format is handled. B<append> will add B<.$format> to the query, B<content-type> will set the content-type information to the header of the request. Should be one the following value:
 
-The format for the API's calls. This will add an B<api_format> attribut to
-your class.
+=over 2
 
-=item B<format_mode> (required, must be 'append' or 'content-type')
+=item B<content-type>
 
-How the format is handled. B<append> will add B<.json> to the query,
-B<content-type> will add the content-type information to the header of the
-request.
+=item B<append>
 
-=item B<useragent> (optional, by default it's a LWP::UserAgent object)
+=back
 
-  useragent => sub {
-    my $ua = LWP::UserAgent->new;
-    $ua->agent( "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1");
-     return $ua;
-  },
+=item B<api_useragent>
+
+A L<LWP::UserAgent> object.
+
+    useragent => sub {
+        my $ua = LWP::UserAgent->new;
+        $ua->agent( "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1");
+        return $ua;
+    }
 
-=item B<authentication> (optional)
+=item B<authentication>
 
 This is a boolean to tell if we must authenticate to use this API.
 
-=item B<authentication_method> (optional)
+=item B<authentication_method>
 
-The default authentication method only set an authorization header using the
-Basic Authentication Scheme. You can write your own authentication method:
+The default authentication method only set an authorization header using the Basic Authentication Scheme. You can write your own authentication method:
 
   net_api_declare foo => (
     ...
@@ -476,7 +236,6 @@ Basic Authentication Scheme. You can write your own authentication method:
   sub my_auth_method {
     my ($self, $req) = @_; #$req is an HTTP::Request object
     ...
-    return $req;
   }
 
 =back
@@ -485,51 +244,46 @@ Basic Authentication Scheme. You can write your own authentication method:
 
 =over 2
 
-=item B<description> [string]
+=item B<description>
 
-description of the method (this is a documentation)
+A string to describe the method (this is a documentation)
 
-=item B<method> [string]
+=item B<method>
 
 HTTP method (GET, POST, PUT, DELETE)
 
-=item B<path> [string]
+=item B<path>
 
 path of the query.
 
 If you defined your path and params like this
 
-  net_api_method user_comments => (
-    ...
-    path => '/user/$user/list/$date/',
-    params => [qw/user date foo bar/],
-    ...
-  );
+    net_api_method user_comments => (
+      ...
+      path => '/user/:user/list/:date',
+      params => [qw/user date foo bar/],
+      ...
+    );
 
 and you call
 
-  $obj->user_comments(user => 'franck', date => 'today', foo => 1, bar => 2);
-
-the url generetad will look like
-
-  /user/franck/list/today/?foo=1&bar=2
+    $obj->user_comments(user => 'franck', date => 'today', foo => 1, bar => 2);
 
-=item B<params> [arrayref]
+the url generated will look like
 
-list of params.
+    /user/franck/list/today/?foo=1&bar=2
 
-=item B<required> [arrayref]
+=item B<params>
 
-list of required params.
+Arrayref of params.
 
-=item B<authentication> (optional)
+=item B<required>
 
-should we do an authenticated call
+Arrayref of required params.
 
-=item B<params_in_url> (optional)
+=item B<params_in_url>
 
-When you do a post, the content may have to be sent as arguments in the url,
-and not as content in the header.
+When you do a post, the content may have to be sent as arguments in the url, and not as content in the header.
 
 =back
 
diff --git a/lib/MooseX/Net/API/Error.pm b/lib/MooseX/Net/API/Error.pm
index 0542613..8825877 100644
--- a/lib/MooseX/Net/API/Error.pm
+++ b/lib/MooseX/Net/API/Error.pm
@@ -1,12 +1,12 @@
 package MooseX::Net::API::Error;
 
 use Moose;
-use JSON::XS;
+use JSON;
 use Moose::Util::TypeConstraints;
 use overload '""' => \&error;
 
 subtype error => as 'Str';
-coerce error => from 'HashRef' => via { encode_json $_};
+coerce error => from 'HashRef' => via { JSON::encode_json $_};
 
 has http_error => (
     is      => 'ro',
@@ -29,5 +29,35 @@ sub error {
 }
 
 1;
-
 __END__
+
+=head1 NAME
+
+MooseX::Net::API::Error
+
+=head1 SYNOPSIS
+
+    MooseX::Net::API::Error->new(reason => "'useragent' is required");
+
+or
+
+    MooseX::Net::API::Error->new()
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Meta/Class.pm b/lib/MooseX/Net/API/Meta/Class.pm
index e4bed0c..9fdd793 100644
--- a/lib/MooseX/Net/API/Meta/Class.pm
+++ b/lib/MooseX/Net/API/Meta/Class.pm
@@ -1,25 +1,36 @@
 package MooseX::Net::API::Meta::Class;
 
 use Moose::Role;
-use Moose::Meta::Class;
-use MooseX::Types::Moose qw(Str ArrayRef ClassName Object);
-
-has local_api_methods => (
-    traits     => ['Array'],
-    is         => 'ro',
-    isa        => ArrayRef [Str],
-    required   => 1,
-    default    => sub { [] },
-    auto_deref => 1,
-    handles    => { '_add_api_method' => 'push' },
-);
-
-sub _build_meta_class {
-    my $self = shift;
-    return Moose::Meta::Class->create_anon_class(
-        superclasses => [ $self->method_metaclass ],
-        cache        => 1,
-    );
-}
+
+with qw/
+    MooseX::Net::API::Meta::Method::APIMethod
+    MooseX::Net::API::Meta::Method::APIDeclare
+    /;
 
 1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Meta::Class
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Meta/Method.pm b/lib/MooseX/Net/API/Meta/Method.pm
index e9ceca7..7c388b9 100644
--- a/lib/MooseX/Net/API/Meta/Method.pm
+++ b/lib/MooseX/Net/API/Meta/Method.pm
@@ -1,19 +1,223 @@
 package MooseX::Net::API::Meta::Method;
 
 use Moose;
+use MooseX::Net::API::Error;
+use Moose::Util::TypeConstraints;
+
+use MooseX::Types::Moose qw/Str Int ArrayRef/;
+
 extends 'Moose::Meta::Method';
 
-has description => ( is => 'ro', isa => 'Str' );
-has path        => ( is => 'ro', isa => 'Str', required => 1 );
-has method      => ( is => 'ro', isa => 'Str', required => 1 );
-has params      => ( is => 'ro', isa => 'ArrayRef', required => 0 );
-has required    => ( is => 'ro', isa => 'ArrayRef', required => 0 );
-has expected    => ( is => 'ro', isa => 'ArrayRef', required => 0 );
+subtype UriPath => as 'Str' => where { $_ =~ m!^/! } =>
+  message {"path must start with /"};
+
+enum Method => qw(GET POST PUT DELETE);
+
+has description => (is => 'ro', isa => 'Str');
+has method      => (is => 'ro', isa => 'Method', required => 1);
+has path        => (is => 'ro', isa => 'UriPath', required => 1, coerce => 1);
+has params_in_url  => (is => 'ro', isa => 'Bool', default => 0);
+has authentication => (is => 'ro', isa => 'Bool', default => 0);
+has expected => (
+    traits     => ['Array'],
+    is         => 'ro',
+    isa        => ArrayRef [Int],
+    auto_deref => 1,
+    required   => 0,
+    predicate  => 'has_expected',
+    handles    => {find_expected_code => 'grep',},
+);
+has params => (
+    traits     => ['Array'],
+    is         => 'ro',
+    isa        => ArrayRef [Str],
+    required   => 0,
+    default    => sub { [] },
+    auto_deref => 1,
+    handles    => {find_param => 'first',}
+);
+has required => (
+    traits     => ['Array'],
+    is         => 'ro',
+    isa        => ArrayRef [Str],
+    default    => sub { [] },
+    auto_deref => 1,
+    required   => 0,
+);
 
-sub new {
+before wrap => sub {
     my $class = shift;
     my %args  = @_;
-    $class->SUPER::wrap(@_);
+
+    $class->_validate_params_before_install(\%args);
+    $class->_validate_required_before_install(\%args);
+};
+
+sub wrap {
+    my $class = shift;
+    my %args  = @_;
+
+    if (!defined $args{body}) {
+        my $code = sub {
+            my ($self, %method_args) = @_;
+
+            my $method =
+              $self->meta->find_method_by_name($args{name})
+              ->get_original_method;
+
+            $method->_validate_before_execute(\%method_args);
+
+            my $path = $method->_build_path(\%method_args);
+            my $local_url = $method->_build_uri($self, $path);
+
+            my $result = $self->http_request(
+                $method->method => $local_url,
+                $method->params_in_url, \%method_args
+            );
+
+            my $code = $result->code;
+
+            if ($method->has_expected
+                && !$method->find_expected_code(sub {/$code/}))
+            {
+                die MooseX::Net::API::Error->new(
+                    reason     => "unexpected code",
+                    http_error => $result
+                );
+            }
+
+            my $content = $self->get_content($result);;
+
+            if ($result->is_success) {
+                if (wantarray) {
+                    return ($content, $result);
+                }
+                else {
+                    return $content;
+                }
+            }
+
+            die MooseX::Net::API::Error->new(
+                http_error => $result,
+                reason     => $result->message,
+            );
+        };
+        $args{body} = $code;
+    }
+
+    $class->SUPER::wrap(%args);
+}
+
+sub _validate_params_before_install {
+    my ( $class, $args ) = @_;
+    if ( !$args->{params} && $args->{required} ) {
+        die MooseX::Net::API::Error->new( reason =>
+                "You can't require a param that have not been declared" );
+    }
+}
+
+sub _validate_required_before_install {
+    my ( $class, $args ) = @_;
+    if ( $args->{required} ) {
+        foreach my $required ( @{ $args->{required} } ) {
+            die MooseX::Net::API::Error->new( reason =>
+                    "$required is required but is not declared in params" )
+                if ( !grep { $_ eq $required } @{ $args->{params} } );
+        }
+    }
+}
+
+sub _validate_before_execute {
+    my ($self, $args) = @_;
+    for my $method (qw/_check_params_before_run _check_required_before_run/) {
+        $self->$method($args);
+    }
+}
+
+sub _check_params_before_run {
+    my ($self, $args) = @_;
+
+    # check if there is no undeclared param
+    foreach my $arg (keys %$args) {
+        if (!$self->find_param(sub {/$arg/})) {
+            die MooseX::Net::API::Error->new(
+                reason => "'$arg' is not declared as a param");
+        }
+    }
+}
+
+sub _check_required_before_run {
+    my ($self, $args) = @_;
+
+    # check if all our params declared as required are present
+    foreach my $required ($self->required) {
+        if (!grep { $required eq $_ } keys %$args) {
+            die MooseX::Net::API::Error->new(reason =>
+                  "'$required' is declared as required, but is not present");
+        }
+    }
+}
+
+sub _build_path {
+    my ($self, $args) = @_;
+    my $path = $self->path;
+
+    my $max_iter = keys %$args;
+    my $i        = 0;
+    while ($path =~ /(?:\$|:)(\w+)/g) {
+        my $match = $1;
+        $i++;
+        if (my $value = delete $args->{$match}) {
+            $path =~ s/(?:\$|:)$match/$value/;
+        }
+        if ($max_iter > $i) {
+            $path =~ s/(?:\$|:)(\w+)//;
+        }
+    }
+    return $path;
+}
+
+sub _build_uri {
+    my ($method, $self, $path) = @_;
+
+    my $local_url     = $self->api_base_url->clone;
+    my $path_url_base = $local_url->path;
+    $path_url_base =~ s/\/$// if $path_url_base =~ m!/$!;
+    $path_url_base .= $path;
+
+    if ($self->api_format && $self->api_format_mode eq 'append') {
+        my $format = $self->api_format;
+        $path_url_base .= "." . $format;
+    }
+
+    $local_url->path($path_url_base);
+    return $local_url;
 }
 
 1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Meta::Class::Method
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Meta/Method/APIDeclare.pm b/lib/MooseX/Net/API/Meta/Method/APIDeclare.pm
new file mode 100644
index 0000000..14fb83d
--- /dev/null
+++ b/lib/MooseX/Net/API/Meta/Method/APIDeclare.pm
@@ -0,0 +1,85 @@
+package MooseX::Net::API::Meta::Method::APIDeclare;
+
+use Moose::Role;
+use MooseX::Net::API::Error;
+
+has options => (
+    is      => 'ro',
+    traits  => ['Hash'],
+    isa     => 'HashRef[Str|CodeRef]',
+    default => sub { {} },
+    lazy    => 1,
+    handles => {
+        set_option => 'set',
+        get_option => 'get',
+    },
+);
+has accepted_options => (
+    is      => 'ro',
+    traits  => ['Array'],
+    isa     => 'ArrayRef[Str]',
+    default => sub {
+        [   qw/api_base_url
+              api_format
+              api_username
+              api_password
+              authentication
+              authentication_method/
+        ];
+    },
+    lazy       => 1,
+    auto_deref => 1,
+);
+
+sub add_net_api_declare {
+    my ($meta, $name, %options) = @_;
+
+    if ($options{useragent}) {
+        die MooseX::Net::API::Error->new(
+            reason => "'useragent' must be a CODE ref")
+          unless ref $options{useragent} eq 'CODE';
+        $meta->set_option(useragent => delete $options{useragent});
+    }
+
+    # XXX for backward compatibility
+    for my $attr (qw/base_url format username password/) {
+        my $attr_name = "api_" . $attr;
+        if (exists $options{$attr} && !exists $options{$attr_name}) {
+            $options{$attr_name} = delete $options{$attr};
+        }
+    }
+
+    for my $attr ($meta->accepted_options) {
+        $meta->set_option($attr => $options{$attr}) if defined $options{$attr};
+    }
+
+    # XXX before_request after_request
+}
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Meta::Class::Method::APIDeclare
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Meta/Method/APIMethod.pm b/lib/MooseX/Net/API/Meta/Method/APIMethod.pm
new file mode 100644
index 0000000..d55fe82
--- /dev/null
+++ b/lib/MooseX/Net/API/Meta/Method/APIMethod.pm
@@ -0,0 +1,86 @@
+package MooseX::Net::API::Meta::Method::APIMethod;
+
+use Moose::Role;
+use MooseX::Net::API::Error;
+use MooseX::Net::API::Meta::Method;
+use MooseX::Types::Moose qw/Str ArrayRef/;
+
+has local_api_methods => (
+    traits     => ['Array'],
+    is         => 'ro',
+    isa        => ArrayRef [Str],
+    required   => 1,
+    default    => sub { [] },
+    auto_deref => 1,
+    handles    => {
+        _get_api_method  => 'grep',
+        _add_api_method  => 'push',
+        _all_api_methods => 'elements',
+    },
+);
+
+before add_net_api_method => sub {
+    my ($meta, $name) = @_;
+    if (my @method = $meta->_get_api_method(sub {/^$name$/})) {
+        die MooseX::Net::API::Error->new(
+            reason => "method '$name' is already declared in " . $meta->name);
+    }
+};
+
+sub add_net_api_method {
+    my ($meta, $name, %options) = @_;
+
+    # accept blessed method
+    my $code = delete $options{code};
+    $meta->add_method(
+        $name,
+        MooseX::Net::API::Meta::Method->wrap(
+            name         => $name,
+            package_name => $meta->name,
+            body         => $code,
+            %options
+        ),
+    );
+    $meta->_add_api_method($name);
+}
+
+after add_net_api_method => sub {
+    my ($meta, $name, %options) = @_;
+    $meta->add_before_method_modifier(
+        $name,
+        sub {
+            my $self = shift;
+            die MooseX::Net::API::Error->new(
+                reason => "'api_base_url' have not been defined")
+              unless $self->api_base_url;
+        }
+    );
+};
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Meta::Class::Method::APIMethod
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Parser.pm b/lib/MooseX/Net/API/Parser.pm
new file mode 100644
index 0000000..8bf74b0
--- /dev/null
+++ b/lib/MooseX/Net/API/Parser.pm
@@ -0,0 +1,35 @@
+package MooseX::Net::API::Parser;
+
+use Moose;
+
+sub encode {die "must be implemented"}
+sub decode {die "must be implemented"}
+
+1;
+
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Parser
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Parser/JSON.pm b/lib/MooseX/Net/API/Parser/JSON.pm
new file mode 100644
index 0000000..bf4c08b
--- /dev/null
+++ b/lib/MooseX/Net/API/Parser/JSON.pm
@@ -0,0 +1,43 @@
+package MooseX::Net::API::Parser::JSON;
+
+use JSON;
+use Moose;
+extends 'MooseX::Net::API::Parser';
+
+sub encode {
+    my ($self, $content) = @_;
+    return JSON::encode_json($content);
+}
+
+sub decode {
+    my ($self, $content) = @_;
+    return JSON::decode_json($content);
+}
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Parser::JSON
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Parser/XML.pm b/lib/MooseX/Net/API/Parser/XML.pm
new file mode 100644
index 0000000..7198175
--- /dev/null
+++ b/lib/MooseX/Net/API/Parser/XML.pm
@@ -0,0 +1,50 @@
+package MooseX::Net::API::Parser::XML;
+
+use XML::Simple;
+use Moose;
+extends 'MooseX::Net::API::Parser';
+
+has _xml_parser => (
+    is      => 'rw',
+    isa     => 'XML::Simple',
+    lazy    => 1,
+    default => sub { XML::SImple->new(ForceArray => 0) }
+);
+
+sub encode {
+    my ($self, $content) = @_;
+    return $self->_xml_parser->XMLin($content);
+}
+
+sub decode {
+    my ($self, $content) = @_;
+    return $self->_xml_parser->XMLout($content);
+}
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Parser::XML
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Parser/YAML.pm b/lib/MooseX/Net/API/Parser/YAML.pm
new file mode 100644
index 0000000..5258796
--- /dev/null
+++ b/lib/MooseX/Net/API/Parser/YAML.pm
@@ -0,0 +1,43 @@
+package MooseX::Net::API::Parser::YAML;
+
+use YAML::Syck;
+use Moose;
+extends 'MooseX::Net::API::Parser';
+
+sub encode {
+    my ($self, $content) = @_;
+    return Dump($content);
+}
+
+sub decode {
+    my ($self, $content) = @_;
+    return Load($content);
+}
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Parser::YAML
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Role/Authentication.pm b/lib/MooseX/Net/API/Role/Authentication.pm
new file mode 100644
index 0000000..0b6de69
--- /dev/null
+++ b/lib/MooseX/Net/API/Role/Authentication.pm
@@ -0,0 +1,83 @@
+package MooseX::Net::API::Role::Authentication;
+
+use Moose::Role;
+
+has api_username => (
+    is      => 'rw',
+    isa     => 'Str',
+    predicate => 'has_api_username',
+);
+
+has api_password => (
+    is      => 'rw',
+    isa     => 'Str',
+    predicate => 'has_api_password',
+);
+
+# ugly :(
+after BUILDALL => sub {
+    my $self = shift;
+
+    for (qw/api_username api_password/) {
+        my $predicate = 'has_' . $_;
+        my $value     = $self->meta->get_option($_);
+        $self->$_($value) if $value && !$self->$predicate;
+    }
+
+    if (my $has_auth = $self->meta->get_option('authentication')) {
+        my $auth_method = $self->meta->get_option('authentication_method');
+        if ($auth_method) {
+            $self->api_useragent->add_handler(
+                request_prepare => sub { $self->$auth_method(@_) });
+        }
+        else {
+            if ($self->has_api_username && $self->has_api_password) {
+                $self->api_useragent->add_handler(
+                    request_prepare => sub {
+                        my $req = shift;
+                        $req->headers->authorization_basic($self->api_username,
+                            $self->api_password);
+                    }
+                );
+            }
+        }
+    }
+};
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Role::Authentication
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head2 ATTRIBUTES
+
+=over 4
+
+=item B<api_password>
+
+=item B<api_username>
+
+=back
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Role/Deserialize.pm b/lib/MooseX/Net/API/Role/Deserialize.pm
deleted file mode 100644
index cf69087..0000000
--- a/lib/MooseX/Net/API/Role/Deserialize.pm
+++ /dev/null
@@ -1,49 +0,0 @@
-package MooseX::Net::API::Role::Deserialize;
-
-use Moose::Role;
-use JSON::XS;
-use YAML::Syck;
-use XML::Simple;
-use Try::Tiny;
-
-my $reverse_content_type = {
-    'application/json'   => 'json',
-    'application/x-yaml' => 'yaml',
-    'text/xml'           => 'xml',
-    'application/xml'    => 'xml',
-};
-
-sub _from_json {
-    return decode_json( $_[1] );
-}
-
-sub _from_yaml {
-    return Load $_[1];
-}
-
-sub _from_xml {
-    my $xml = XML::Simple->new( ForceArray => 0 );
-    $xml->XMLin( $_[1] );
-}
-
-sub _do_deserialization {
-    my ( $caller, $raw_content, @content_types ) = @_;
-
-    my $content;
-    foreach my $deserializer (@content_types) {
-        my $method;
-        if ( $reverse_content_type->{$deserializer} ) {
-            $method = '_from_' . $reverse_content_type->{$deserializer};
-        }
-        else {
-            $method = '_from_' . $deserializer;
-        }
-        next if ( !$caller->meta->find_method_by_name($method) );
-        try {
-            $content = $caller->$method($raw_content);
-        };
-        return $content if $content;
-    }
-}
-
-1;
diff --git a/lib/MooseX/Net/API/Role/Format.pm b/lib/MooseX/Net/API/Role/Format.pm
new file mode 100644
index 0000000..e766161
--- /dev/null
+++ b/lib/MooseX/Net/API/Role/Format.pm
@@ -0,0 +1,85 @@
+package MooseX::Net::API::Role::Format;
+
+use Moose::Role;
+use Moose::Util::TypeConstraints;
+
+sub content_type {
+    {   json => {value => 'application/json', module => 'JSON',},
+        yaml => {value => 'text/x-yaml',      module => 'YAML'},
+        xml  => {value => 'text/xml',         module => 'XML::Simple'},
+    };
+}
+
+subtype Format => as 'Str' => where {
+    my $format = shift;
+    grep {/^$format$/} keys %{content_type()};
+};
+
+enum 'FormatMode' => qw(content-type append);
+
+has api_format => (
+    is      => 'rw',
+    isa     => 'Format',
+    lazy    => 1,
+    default => sub {
+        my $self = shift;
+        $self->meta->get_option('api_format');
+    }
+);
+
+has api_format_mode => (
+    is      => 'rw',
+    isa     => 'FormatMode',
+    lazy    => 1,
+    default => sub {
+        my $self = shift;
+        my $mode = $self->meta->get_option('api_format_mode');
+        $mode || 'append';
+    }
+);
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Role::Format
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head2 METHODS
+
+=over 4
+
+=item B<content_type>
+
+=back
+
+=head2 ATTRIBUTES
+
+=over 4
+
+=item B<api_format>
+
+=item B<api_format_mode>
+
+=back
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Role/Request.pm b/lib/MooseX/Net/API/Role/Request.pm
new file mode 100644
index 0000000..214411c
--- /dev/null
+++ b/lib/MooseX/Net/API/Role/Request.pm
@@ -0,0 +1,94 @@
+package MooseX::Net::API::Role::Request;
+
+use Moose::Role;
+use HTTP::Request;
+use MooseX::Net::API::Error;
+use MooseX::Types::URI qw(Uri);
+
+has api_base_url => (
+    is      => 'rw',
+    isa     => Uri,
+    coerce  => 1,
+    lazy    => 1,
+    default => sub {
+        my $self         = shift;
+        my $api_base_url = $self->meta->get_option('api_base_url');
+        if (!$api_base_url) {
+            die MooseX::Net::API::Error->new(
+                reason => "'api_base_url' have not been defined");
+        }
+        $api_base_url;
+    }
+);
+
+sub http_request {
+    my ($self, $method, $uri, $params_in_url, $args) = @_;
+
+    my $request;
+
+    if ( $method =~ /^(?:GET|DELETE)$/ || $params_in_url ) {
+        $uri->query_form(%$args);
+        $request = HTTP::Request->new( $method => $uri );
+    }
+    elsif ( $method =~ /^(?:POST|PUT)$/ ) {
+        $request = HTTP::Request->new( $method => $uri );
+        my $content = $self->serialize($args);
+        $request->content($content);
+    }
+    else {
+        die MooseX::Net::API::Error->new(
+            reason => "$method is not defined" );
+    }
+
+    $request->header(
+        'Content-Type' => $self->content_type->{$self->api_format}->{value})
+      if $self->api_format_mode eq 'content-type';
+
+    # XXX lwp hook!
+    my $result = $self->api_useragent->request($request);
+    return $result;
+}
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Role::Request
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head2 METHODS
+
+=over 4
+
+=item B<http_request>
+
+=back
+
+=head2 ATTRIBUTES
+
+=over 4
+
+=item B<api_base_url>
+
+=back
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Role/Serialization.pm b/lib/MooseX/Net/API/Role/Serialization.pm
new file mode 100644
index 0000000..d4feb56
--- /dev/null
+++ b/lib/MooseX/Net/API/Role/Serialization.pm
@@ -0,0 +1,118 @@
+package MooseX::Net::API::Role::Serialization;
+
+use 5.010;
+
+use Try::Tiny;
+use Moose::Role;
+use MooseX::Net::API::Error;
+
+has serializers => (
+    traits     => ['Hash'],
+    is         => 'rw',
+    isa        => 'HashRef[MooseX::Net::API::Parser]',
+    default    => sub { {} },
+    auto_deref => 1,
+    handles    => {
+        _add_serializer => 'set',
+        _get_serializer => 'get',
+    },
+);
+
+sub get_content {
+    my ($self, $result) = @_;
+
+    my $content_type = $self->api_format // $result->header('Content-Type');
+    $content_type =~ s/(;.+)$//;
+
+    my $content;
+    if ($result->is_success && $result->code != 204) {
+        my @deserialize_order = ($content_type, $self->api_format);
+        $content = $self->deserialize($result->content, \@deserialize_order);
+
+        if (!$content) {
+            die MooseX::Net::API::Error->new(
+                reason     => "can't deserialize content",
+                http_error => $result,
+            );
+        }
+    }
+    $content;
+}
+
+sub deserialize {
+    my ($self, $content, $list_of_formats) = @_;
+
+    foreach my $format (@$list_of_formats) {
+        my $s = $self->_get_serializer($format)
+          || $self->_load_serializer($format);
+        next unless $s;
+        my $result = try { $s->decode($content) };
+        return $result if $result;
+    }
+}
+
+sub serialize {
+    my ($self, $content) = @_;
+    my $s = $self->_get_serializer($self->api_format);
+    my $result = try { $s->encode($content) };
+    return $result if $result;
+}
+
+sub _load_serializer {
+    my $self   = shift;
+    my $format = shift || $self->api_format;
+    my $parser = "MooseX::Net::API::Parser::" . uc($format);
+    if (Class::MOP::load_class($parser)) {
+        my $o = $parser->new;
+        $self->_add_serializer($format => $o);
+        return $o;
+    }
+}
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Role::Serialization
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head2 ATTRIBUTES
+
+=over 4
+
+=item B<serializers>
+
+=back
+
+=head2 METHODS
+
+=over 4
+
+=item B<get_content>
+
+=item B<serialize>
+
+=item B<deserialize>
+
+=back
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut
diff --git a/lib/MooseX/Net/API/Role/Serialize.pm b/lib/MooseX/Net/API/Role/Serialize.pm
deleted file mode 100644
index f527928..0000000
--- a/lib/MooseX/Net/API/Role/Serialize.pm
+++ /dev/null
@@ -1,34 +0,0 @@
-package MooseX::Net::API::Role::Serialize;
-
-use Moose::Role;
-use JSON::XS;
-use YAML::Syck;
-use XML::Simple;
-use Try::Tiny;
-
-sub _to_json {
-    return encode_json( $_[1] );
-}
-
-sub _to_yaml {
-    return Dump $_[1];
-}
-
-sub _to_xml {
-    my $xml = XML::Simple->new( ForceArray => 0 );
-    $xml->XMLin("$_[0]");
-}
-
-sub _do_serialization {
-    my ( $caller, $content, $format ) = @_;
-
-    my $format_content;
-    my $method = '_to_' . $format;
-    return if ( !$caller->meta->find_method_by_name($method) );
-    try {
-        $format_content = $caller->$method($content);
-    };
-    return $format_content if $format_content;
-}
-
-1;
diff --git a/lib/MooseX/Net/API/Role/UserAgent.pm b/lib/MooseX/Net/API/Role/UserAgent.pm
new file mode 100644
index 0000000..c3a1d5b
--- /dev/null
+++ b/lib/MooseX/Net/API/Role/UserAgent.pm
@@ -0,0 +1,56 @@
+package MooseX::Net::API::Role::UserAgent;
+
+use Moose::Role;
+use LWP::UserAgent;
+
+has api_useragent => (
+    is      => 'rw',
+    isa     => 'LWP::UserAgent',
+    lazy    => 1,
+    default => sub {
+        my $self = shift;
+        my $ua   = $self->meta->get_option('useragent');
+        return $ua->() if $ua;
+        $ua = LWP::UserAgent->new();
+        $ua->agent(
+            "MooseX::Net::API " . $MooseX::Net::API::VERSION . " (Perl)");
+        $ua->env_proxy;
+        return $ua;
+    }
+);
+
+1;
+__END__
+
+=head1 NAME
+
+MooseX::Net::API::Role::UseAgent
+
+=head1 SYNOPSIS
+
+=head1 DESCRIPTION
+
+=head2 ATTRIBUTES
+
+=over 4
+
+=item B<api_useragent>
+
+=back
+
+=head1 AUTHOR
+
+franck cuny E<lt>franck@lumberjaph.netE<gt>
+
+=head1 SEE ALSO
+
+=head1 LICENSE
+
+Copyright 2009, 2010 by Linkfluence
+
+http://linkfluence.net
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+=cut