1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
package MooseX::Net::API;
use Moose::Exporter;
use Carp;
use Try::Tiny;
our $VERSION = '0.01';
our $list_content_type = {
'json' => 'application/json',
'yaml' => 'text/x-yaml',
'xml' => 'text/xml',
};
our $reverse_content_type = { 'application/json' => 'json', };
Moose::Exporter->setup_import_methods(
with_caller => [ qw/net_api_method format_query require_authentication/ ],
);
sub format_query {
my ( $caller, $name, %options ) = @_;
Moose::Meta::Class->initialize($caller)->add_method(
_format => sub {
{ format => $_[1]->$name, mode => $options{mode} }
}
);
}
my $do_authentication;
sub require_authentication { $do_authentication = $_[1] }
sub net_api_method {
my $caller = shift;
my $name = shift;
my %options = @_;
my $class = Moose::Meta::Class->initialize($caller);
for (qw/api_base_url format/) {
if ( !$caller->meta->has_attribute($_) ) {
croak "attribut $_ is missing";
}
}
if ( !$class->meta->has_attribute('useragent') ) {
_init_useragent($class);
}
my $code;
if ( !$options{code} ) {
$code = sub {
my $self = shift;
my %args = @_;
if (!$self->meta->does_role('MooseX::Net::API::Roles::Deserialize')){
MooseX::Net::API::Roles::Deserialize->meta->apply($self);
}
if (!$self->meta->does_role('MooseX::Net::API::Roles::Serialize')){
MooseX::Net::API::Roles::Serialize->meta->apply($self);
}
# XXX apply to all
if ( $options{path} =~ /\$(\w+)/ ) {
my $match = $1;
if ( my $value = delete $args{$match} ) {
$options{path} =~ s/\$$match/$value/;
}
}
my $url = $self->api_base_url . $options{path};
my $format = $caller->_format($self);
$url .= "." . $self->format if ( $format->{mode} eq 'append' );
my $req;
my $uri = URI->new($url);
my $method = $options{method};
if ( $method =~ /^(?:GET|DELETE)$/ ) {
$uri->query_form(%args);
$req = HTTP::Request->new( $method => $uri );
}
elsif ( $method =~ /^(?:POST|PUT)$/ ) {
$req = HTTP::Request->new( $method => $uri );
# XXX handle POST and PUT for params
}
else {
croak "$method is not defined";
}
# XXX check presence content type
$req->header( 'Content-Type' =>
$list_content_type->{ $format->{format} }->{header} )
if $format->{mode} eq 'content-type';
my $res = $self->useragent->request($req);
my $content_type = $res->headers->{"content-type"};
if ( $res->is_success ) {
if ( my $type = $reverse_content_type->{$content_type} ) {
my $method = '_from_' . $type;
return $self->$method( $res->content );
}else{
}
}
else {
return MooseX::Net::API::Error->new(
code => $res->code,
error => $res->content
);
}
};
}
else {
$code = delete $options{code};
}
$class->add_method(
$name,
MooseX::Net::API::Meta::Method->new(
name => $name,
package_name => $caller,
body => $code,
%options,
),
);
}
sub _request {
my $class = shift;
}
sub _init_useragent {
my $class = shift;
try {
require LWP::UserAgent;
}
catch {
croak "no useragent defined and LWP::UserAgent is not available";
};
my $ua = LWP::UserAgent->new();
$ua->env_proxy;
$class->add_attribute(
'useragent',
is => 'rw',
isa => 'LWP::UserAgent',
lazy => 1,
default => sub {$ua},
);
}
package MooseX::Net::API::Meta::Method;
use Moose;
extends 'Moose::Meta::Method';
use Carp;
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 );
sub new {
my $class = shift;
my %args = @_;
$class->SUPER::wrap(@_);
}
1;
__END__
=head1 NAME
MooseX::Net::API - Easily create client for net API
=head1 SYNOPSIS
package My::Net::API;
use Moose;
use MooseX::Net::API;
net_api_method => (
description => 'this get foo',
method => 'GET',
path => '/foo/',
params => [qw/user group/],
required => [qw/user/],
);
=head1 DESCRIPTION
MooseX::Net::API is module to help to easily create a client to a web
API
=head2 METHODS
=over 4
=item B<net_api_method>
=over 2
=item B<description>
description of the method (this is a documentation)
=item B<method>
HTTP method (GET, POST, PUT, DELETE)
=item B<path>
path of the query
=item B<params>
list of params
=item B<required>
list of required params
=back
=back
=head1 AUTHOR
franck cuny E<lt>franck.cuny@rtgi.frE<gt>
=head1 SEE ALSO
=head1 LICENSE
This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
=cut
|
