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package WebService::ScormCloud::Service; |
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use Moose::Role; |
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=head1 NAME |
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WebService::ScormCloud::Service - ScormCloud API base class |
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=head1 VERSION |
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Version 0.03 |
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=cut |
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our $VERSION = '0.03'; |
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=head1 SYNOPSIS |
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use WebService::ScormCloud; |
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my $ScormCloud = WebService::ScormCloud->new( |
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app_id => '12345678', |
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secret_key => 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', |
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); |
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print "Service is alive\n" if $ScormCloud->ping; |
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print "Auth is valid\n" if $ScormCloud->authPing; |
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=head1 DESCRIPTION |
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This module defines L<WebService::ScormCloud> shared API methods. |
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See L<WebService::ScormCloud> for more info. |
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=cut |
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use Carp; |
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use Data::Dump 'dump'; |
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use Digest::MD5 qw(md5_hex); |
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use HTTP::Request::Common; |
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use POSIX qw(strftime); |
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use Try::Tiny; |
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use XML::Simple; |
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use Readonly; |
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Readonly::Scalar my $DUMP_WIDTH => 40; |
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=head1 METHODS |
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=head2 request_uri ( I<params> ) |
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Returns a URI object that would be used to make a ScormCloud API |
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request. |
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Note that you would not typically call this method directly - use |
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the API methods defined in the L</API CLASSES> instead. |
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The params hashref should contain all query params and values used |
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in building the request query string. At minimum it must include a |
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value for "method". |
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=cut |
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sub request_uri |
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{ |
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my ($self, $params) = @_; |
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$params ||= {}; |
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croak 'No method' unless $params->{method}; |
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72
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my $top_level_namespace = $self->top_level_namespace; |
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unless ($params->{method} =~ /^$top_level_namespace[.]/xsm) |
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{ |
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$params->{method} = $top_level_namespace . q{.} . $params->{method}; |
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} |
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$params->{appid} ||= $self->app_id; |
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$params->{ts} ||= strftime '%Y%m%d%H%M%S', gmtime; |
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my $sig = join q{}, map { $_ . $params->{$_} } sort keys %{$params}; |
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$params->{sig} = md5_hex($self->secret_key . $sig); |
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my $uri = $self->service_url->clone; |
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$uri->query_form($params); |
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$self->_dump_data($uri . q{}) if $self->dump_request_url; |
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return $uri; |
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} |
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=head2 request ( I<params> [ , I<args> ] ) |
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Make an API request: |
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my $parsed_response_data = |
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$ScormCloud->request(method => 'rustici.debug.authPing'); |
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Note that you would not typically call this method directly - use |
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the API methods defined in the L</API CLASSES> instead. |
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=cut |
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105
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sub request |
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{ |
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my ($self, $params, $args) = @_; |
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my $uri = $self->request_uri($params); |
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$args ||= {}; |
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$args->{request_method} ||= 'GET'; |
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$args->{request_headers} ||= {}; |
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$args->{xml_parser} ||= {}; |
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my %request_args = %{$args->{request_headers}}; |
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# If set, "request_content" should be a listref. E.g. for a |
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# file upload: |
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# |
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# $args->{request_content} = [file => ['/path/to/file']]; |
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# |
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if ($args->{request_content}) |
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{ |
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$args->{request_method} = 'POST'; |
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$request_args{Content_Type} = 'form-data'; |
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$request_args{Content} = $args->{request_content}; |
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} |
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my $http_request; |
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{ |
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no strict 'refs'; ## no critic (TestingAndDebugging::ProhibitNoStrict) |
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$http_request = $args->{request_method}->($uri, %request_args); |
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} |
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return $self->_make_http_request($http_request, $args); |
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} |
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sub _make_http_request |
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{ |
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my ($self, $http_request, $args) = @_; |
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my $response = $self->lwp_user_agent->request($http_request); |
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$self->last_error_data([]); |
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147
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my $response_data = undef; |
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149
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if ($response->is_success) |
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{ |
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try |
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{ |
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$self->_dump_data($response->content) if $self->dump_response_xml; |
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155
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# Add some extra handling in case we get an error response: |
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# |
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my $force_array = delete $args->{xml_parser}->{ForceArray} || []; |
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my $group_tags = delete $args->{xml_parser}->{GroupTags} || {}; |
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push @{$force_array}, 'err', 'tracetext'; |
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$group_tags->{stacktrace} = 'tracetext'; |
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162
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$response_data = |
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XML::Simple->new->XMLin( |
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$response->content, |
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KeyAttr => [], |
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SuppressEmpty => q{}, |
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ForceArray => $force_array, |
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GroupTags => $group_tags, |
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%{$args->{xml_parser}} |
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) || {}; |
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172
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# Response data should always include "stat". Make sure it |
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# exists, so callers can safely assume it is always there: |
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# |
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$response_data->{stat} ||= 'fail'; |
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} |
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catch |
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{ |
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$response_data = { |
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stat => 'fail', |
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err => [ |
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{ |
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code => 999, |
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msg => 'XML PARSE FAILURE: ' . $_ |
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} |
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] |
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}; |
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}; |
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} |
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else |
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{ |
192
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$response_data = { |
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stat => 'fail', |
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err => [ |
195
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{ |
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code => 999, |
197
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msg => 'BAD HTTP RESPONSE: ' . $response->status_line |
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} |
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] |
200
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}; |
201
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} |
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203
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if ($response_data->{stat} eq 'fail') |
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{ |
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$response_data->{err} ||= [{code => 999, msg => 'FAIL BUT NO ERR'}]; |
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207
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$self->last_error_data($response_data->{err}); |
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209
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croak "Invalid API response data:\n" . dump($response_data) |
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if $self->die_on_bad_response; |
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} |
212
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213
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$self->_dump_data($response_data) if $self->dump_response_data; |
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215
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return $response_data; |
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} |
217
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218
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sub _dump_data |
219
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{ |
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my ($self, $data) = @_; |
221
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222
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print q{=} x $DUMP_WIDTH, "\n", dump($data), "\n", q{=} x $DUMP_WIDTH, "\n"; |
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224
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return; |
225
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} |
226
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227
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=head2 process_request ( I<params>, I<callback> ) |
228
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229
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Make an API request, and return desired data out of the response. |
230
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231
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Input arguments are: |
232
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233
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=over 4 |
234
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235
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=item B<params> |
236
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237
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A hashref of API request params. At minimum must include "method". |
238
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239
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=item B<callback> |
240
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241
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A callback function that extracts and returns the desired data from |
242
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the response data. The callback should expect a single argument |
243
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"response" which is the parsed XML response data. |
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=item B<args> |
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An optional hashref of arguments to modify the request. |
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=back |
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=cut |
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sub process_request |
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{ |
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my ($self, $params, $callback, $args) = @_; |
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croak 'Missing request params' unless $params; |
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croak 'Missing callback' unless $callback; |
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my $response_data = $self->request($params, $args); |
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my $data = undef; |
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if ($response_data->{stat} eq 'ok') |
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{ |
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try |
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{ |
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$data = $callback->($response_data); |
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}; |
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} |
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unless (defined $data) |
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{ |
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croak "Invalid API response data:\n" . dump($response_data) |
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if $self->die_on_bad_response; |
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} |
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$self->_dump_data($data) if $self->dump_api_results; |
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return $data; |
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} |
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1; |
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285
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__END__ |
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287
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=head1 SEE ALSO |
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289
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L<WebService::ScormCloud> |
290
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291
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=head1 AUTHOR |
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293
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Larry Leszczynski, C<< <larryl at cpan.org> >> |
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295
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=head1 BUGS |
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297
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Please report any bugs or feature requests to C<bug-scormcloud at rt.cpan.org>, or through |
298
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the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=WebService-ScormCloud>. I will be notified, and then you'll |
299
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automatically be notified of progress on your bug as I make changes. |
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301
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Patches more than welcome, especially via GitHub: |
302
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L<https://github.com/larryl/ScormCloud> |
303
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304
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=head1 SUPPORT |
305
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306
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|
You can find documentation for this module with the perldoc command. |
307
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308
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|
perldoc WebService::ScormCloud::Service |
309
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310
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|
You can also look for information at: |
311
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312
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|
=over 4 |
313
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314
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|
=item * GitHub |
315
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316
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L<https://github.com/larryl/ScormCloud> |
317
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318
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|
=item * RT: CPAN's request tracker |
319
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320
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|
L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=WebService-ScormCloud> |
321
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322
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|
|
=item * AnnoCPAN: Annotated CPAN documentation |
323
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324
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|
L<http://annocpan.org/dist/WebService-ScormCloud> |
325
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326
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|
=item * CPAN Ratings |
327
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|
328
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|
|
L<http://cpanratings.perl.org/d/WebService-ScormCloud> |
329
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330
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|
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|
|
=item * Search CPAN |
331
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|
332
|
|
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|
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|
|
L<http://search.cpan.org/dist/WebService-ScormCloud/> |
333
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|
334
|
|
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|
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|
|
=back |
335
|
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|
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|
|
336
|
|
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|
|
|
|
=head1 ACKNOWLEDGEMENTS |
337
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|
|
338
|
|
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|
|
|
339
|
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|
|
=head1 COPYRIGHT & LICENSE |
340
|
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341
|
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|
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|
|
Copyright 2010 Larry Leszczynski. |
342
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343
|
|
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|
|
|
|
This program is free software; you can redistribute it and/or modify it |
344
|
|
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|
|
|
|
under the terms of either: the GNU General Public License as published |
345
|
|
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|
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|
|
by the Free Software Foundation; or the Artistic License. |
346
|
|
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347
|
|
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|
|
See http://dev.perl.org/licenses/ for more information. |
348
|
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|
349
|
|
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|
|
=cut |
350
|
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|