From: Charles McGarvey Date: Mon, 16 Mar 2020 00:10:12 +0000 (-0600) Subject: Version 0.600 X-Git-Url: https://git.dogcows.com/gitweb?a=commitdiff_plain;h=5d541d3263496638433052515b9dea5b271f9352;p=chaz%2Fgraphql-client Version 0.600 --- 5d541d3263496638433052515b9dea5b271f9352 diff --git a/Changes b/Changes new file mode 100644 index 0000000..c54d2b5 --- /dev/null +++ b/Changes @@ -0,0 +1,5 @@ +Revision history for GraphQL-Client. + +0.600 2020-03-15 18:08:57-06:00 MST7MDT + * Initial public release + diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..f87adb0 --- /dev/null +++ b/LICENSE @@ -0,0 +1,379 @@ +This software is copyright (c) 2020 by Charles McGarvey. + +This is free software; you can redistribute it and/or modify it under +the same terms as the Perl 5 programming language system itself. + +Terms of the Perl programming language system itself + +a) the GNU General Public License as published by the Free + Software Foundation; either version 1, or (at your option) any + later version, or +b) the "Artistic License" + +--- The GNU General Public License, Version 1, February 1989 --- + +This software is Copyright (c) 2020 by Charles McGarvey. + +This is free software, licensed under: + + The GNU General Public License, Version 1, February 1989 + + GNU GENERAL PUBLIC LICENSE + Version 1, February 1989 + + Copyright (C) 1989 Free Software Foundation, Inc. + 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The license agreements of most software companies try to keep users +at the mercy of those companies. 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'Charles McGarvey ' +build_requires: + ExtUtils::MakeMaker: '0' + File::Spec: '0' + FindBin: '0' + Future: '0' + HTTP::AnyUA::Backend: '0' + IO::Handle: '0' + IPC::Open3: '0' + Test::Deep: '0' + Test::Exception: '0' + Test::More: '0' + lib: '0' +configure_requires: + ExtUtils::MakeMaker: '0' +dynamic_config: 0 +generated_by: 'Dist::Zilla version 6.014, CPAN::Meta::Converter version 2.150010' +license: perl +meta-spec: + url: http://module-build.sourceforge.net/META-spec-v1.4.html + version: '1.4' +name: GraphQL-Client +no_index: + directory: + - eg + - share + - shares + - t + - xt +provides: + GraphQL::Client: + file: lib/GraphQL/Client.pm + version: '0.600' + GraphQL::Client::Error: + file: lib/GraphQL/Client.pm + version: '0.600' + GraphQL::Client::http: + file: lib/GraphQL/Client/http.pm + version: '0.600' + GraphQL::Client::https: + file: lib/GraphQL/Client/https.pm + version: '0.600' +recommends: + HTTP::Tiny: '0' + Pod::Usage: '0' +requires: + Carp: '0' + Getopt::Long: '0' + HTTP::AnyUA: '0' + HTTP::AnyUA::Util: '0' + JSON::MaybeXS: '0' + Module::Load: '0' + Scalar::Util: '0' + namespace::clean: '0' + overload: '0' + parent: '0' + perl: '5.010' + strict: '0' + warnings: '0' +resources: + bugtracker: https://github.com/chazmcgarvey/graphql-client/issues + homepage: https://github.com/chazmcgarvey/graphql-client + repository: https://github.com/chazmcgarvey/graphql-client.git +version: '0.600' +x_authority: cpan:CCM +x_generated_by_perl: v5.28.0 +x_serialization_backend: 'YAML::Tiny version 1.73' +x_spdx_expression: 'Artistic-1.0-Perl OR GPL-1.0-or-later' diff --git a/Makefile.PL b/Makefile.PL new file mode 100644 index 0000000..491a896 --- /dev/null +++ b/Makefile.PL @@ -0,0 +1,92 @@ +# This file was automatically generated by Dist::Zilla::Plugin::MakeMaker v6.014. +use strict; +use warnings; + +use 5.010; + +use ExtUtils::MakeMaker; + +my %WriteMakefileArgs = ( + "ABSTRACT" => "A GraphQL client", + "AUTHOR" => "Charles McGarvey ", + "CONFIGURE_REQUIRES" => { + "ExtUtils::MakeMaker" => 0 + }, + "DISTNAME" => "GraphQL-Client", + "EXE_FILES" => [ + "bin/graphql" + ], + "LICENSE" => "perl", + "MIN_PERL_VERSION" => "5.010", + "NAME" => "GraphQL::Client", + "PREREQ_PM" => { + "Carp" => 0, + "Getopt::Long" => 0, + "HTTP::AnyUA" => 0, + "HTTP::AnyUA::Util" => 0, + "JSON::MaybeXS" => 0, + "Module::Load" => 0, + "Scalar::Util" => 0, + "namespace::clean" => 0, + "overload" => 0, + "parent" => 0, + "strict" => 0, + "warnings" => 0 + }, + "TEST_REQUIRES" => { + "ExtUtils::MakeMaker" => 0, + "File::Spec" => 0, + "FindBin" => 0, + "Future" => 0, + "HTTP::AnyUA::Backend" => 0, + "IO::Handle" => 0, + "IPC::Open3" => 0, + "Test::Deep" => 0, + "Test::Exception" => 0, + "Test::More" => 0, + "lib" => 0 + }, + "VERSION" => "0.600", + "test" => { + "TESTS" => "t/*.t" + } +); + + +my %FallbackPrereqs = ( + "Carp" => 0, + "ExtUtils::MakeMaker" => 0, + "File::Spec" => 0, + "FindBin" => 0, + "Future" => 0, + "Getopt::Long" => 0, + "HTTP::AnyUA" => 0, + "HTTP::AnyUA::Backend" => 0, + "HTTP::AnyUA::Util" => 0, + "IO::Handle" => 0, + "IPC::Open3" => 0, + "JSON::MaybeXS" => 0, + "Module::Load" => 0, + "Scalar::Util" => 0, + "Test::Deep" => 0, + "Test::Exception" => 0, + "Test::More" => 0, + "lib" => 0, + "namespace::clean" => 0, + "overload" => 0, + "parent" => 0, + "strict" => 0, + "warnings" => 0 +); + + +unless ( eval { ExtUtils::MakeMaker->VERSION(6.63_03) } ) { + delete $WriteMakefileArgs{TEST_REQUIRES}; + delete $WriteMakefileArgs{BUILD_REQUIRES}; + $WriteMakefileArgs{PREREQ_PM} = \%FallbackPrereqs; +} + +delete $WriteMakefileArgs{CONFIGURE_REQUIRES} + unless eval { ExtUtils::MakeMaker->VERSION(6.52) }; + +WriteMakefile(%WriteMakefileArgs); diff --git a/README b/README new file mode 100644 index 0000000..ba5570e --- /dev/null +++ b/README @@ -0,0 +1,202 @@ +NAME + + GraphQL::Client - A GraphQL client + +VERSION + + version 0.600 + +SYNOPSIS + + my $graphql = GraphQL::Client->new(url => 'http://localhost:4000/graphql'); + + # Example: Hello world! + + my $response = $graphql->execute('{hello}'); + + # Example: Kitchen sink + + my $query = q[ + query GetHuman { + human(id: $human_id) { + name + height + } + } + ]; + my $variables = { + human_id => 1000, + }; + my $operation_name = 'GetHuman'; + my $transport_options = { + headers => { + authorization => 'Bearer s3cr3t', + }, + }; + my $response = $graphql->execute($query, $variables, $operation_name, $transport_options); + + # Example: Asynchronous with Mojo::UserAgent (promisify requires Future::Mojo) + + my $ua = Mojo::UserAgent->new; + my $graphql = GraphQL::Client->new(ua => $ua, url => 'http://localhost:4000/graphql'); + + my $future = $graphql->execute('{hello}'); + + $future->promisify->then(sub { + my $response = shift; + ... + }); + +DESCRIPTION + + GraphQL::Client provides a simple way to execute GraphQL + queries and mutations on a server. + + This module is the programmatic interface. There is also a graphql. + + GraphQL servers are usually served over HTTP. The provided transport, + GraphQL::Client::http, lets you plug in your own user agent, so this + client works naturally with HTTP::Tiny, Mojo::UserAgent, and more. You + can also use HTTP::AnyUA middleware. + +ATTRIBUTES + + url + + The URL of a GraphQL endpoint, e.g. "http://myapiserver/graphql". + + class + + The package name of a transport. + + By default this is automatically determined from the protocol portion + of the "url". + + transport + + The transport object. + + By default this is automatically constructed based on the "class". + + unpack + + Whether or not to "unpack" the response, which enables a different + style for error-handling. + + Default is 0. + + See "ERROR HANDLING". + +METHODS + + new + + $graphql = GraphQL::Client->new(%attributes); + + Construct a new client. + + execute + + $response = $graphql->execute($query); + $response = $graphql->execute($query, \%variables); + $response = $graphql->execute($query, \%variables, $operation_name); + $response = $graphql->execute($query, \%variables, $operation_name, \%transport_options); + $response = $graphql->execute($query, \%variables, \%transport_options); + + Execute a request on a GraphQL server, and get a response. + + By default, the response will either be a hashref with the following + structure or a Future that resolves to such a hashref, depending on the + transport and how it is configured. + + { + data => { + field1 => {...}, # or [...] + ... + }, + errors => [ + { message => 'some error message blah blah blah' }, + ... + ], + } + + Note: Setting the "unpack" attribute affects the response shape. + +ERROR HANDLING + + There are two different styles for handling errors. + + If "unpack" is 0 (off), every response -- whether success or failure -- + is enveloped like this: + + { + data => {...}, + errors => [...], + } + + where data might be missing or undef if errors occurred (though not + necessarily) and errors will be missing if the response completed + without error. + + It is up to you to check for errors in the response, so your code might + look like this: + + my $response = $graphql->execute(...); + if (my $errors = $response->{errors}) { + # handle $errors + } + else { + my $data = $response->{data}; + # do something with $data + } + + If unpack is 1 (on), then "execute" will return just the data if there + were no errors, otherwise it will throw an exception. So your code + would instead look like this: + + my $data = eval { $graphql->execute(...) }; + if (my $error = $@) { + # handle errors + } + else { + # do something with $data + } + + Or if you want to handle errors in a different stack frame, your code + is simply this: + + my $data = $graphql->execute(...); + # do something with $data + + Both styles map to Future responses intuitively. If unpack is 0, the + response always resolves to the envelope structure. If unpack is 1, + successful responses will resolve to just the data and errors will + fail/reject. + +SEE ALSO + + * graphql - CLI program + + * GraphQL - Perl implementation of a GraphQL server + + * https://graphql.org/ - GraphQL project website + +BUGS + + Please report any bugs or feature requests on the bugtracker website + https://github.com/chazmcgarvey/graphql-client/issues + + When submitting a bug or request, please include a test-file or a patch + to an existing test-file that illustrates the bug or desired feature. + +AUTHOR + + Charles McGarvey + +COPYRIGHT AND LICENSE + + This software is copyright (c) 2020 by Charles McGarvey. + + This is free software; you can redistribute it and/or modify it under + the same terms as the Perl 5 programming language system itself. + diff --git a/bin/graphql b/bin/graphql new file mode 100755 index 0000000..31c48ae --- /dev/null +++ b/bin/graphql @@ -0,0 +1,536 @@ +#! perl +# PODNAME: graphql +# ABSTRACT: Command-line GraphQL client + +# FATPACK - Do not remove this line. + +use warnings; +use strict; + +use Getopt::Long; +use GraphQL::Client; +use JSON::MaybeXS; + +our $VERSION = '0.600'; # VERSION + +my $version; +my $help; +my $manual; +my $url; +my $transport = {}; +my $query = '-'; +my $variables = {}; +my $operation_name; +my $format = 'json:pretty'; +my $unpack = 0; +my $outfile; +GetOptions( + 'version' => \$version, + 'help|h|?' => \$help, + 'manual|man' => \$manual, + 'url|u=s' => \$url, + 'query|mutation=s' => \$query, + 'variables|vars|V=s' => \$variables, + 'variable|var|d=s%' => \$variables, + 'operation-name|n=s' => \$operation_name, + 'transport|t=s%' => \$transport, + 'format|f=s' => \$format, + 'unpack!' => \$unpack, + 'output|o=s' => \$outfile, +) or pod2usage(2); + +if ($version) { + print "graphql $VERSION\n"; + exit 0; +} +if ($help) { + pod2usage(-exitval => 0, -verbose => 99, -sections => [qw(NAME SYNOPSIS OPTIONS)]); +} +if ($manual) { + pod2usage(-exitval => 0, -verbose => 2); +} + +$url = shift if !$url; +$query = shift if !$query || $query eq '-'; + +if (!$url) { + print STDERR "The or --url option argument is required.\n"; + pod2usage(2); +} + +$transport = expand_vars($transport); + +if (ref $variables) { + $variables = expand_vars($variables); +} +else { + $variables = JSON::MaybeXS->new->decode($variables); +} + +my $client = GraphQL::Client->new(url => $url); + +eval { $client->transport }; +if (my $err = $@) { + warn $err if $ENV{GRAPHQL_CLIENT_DEBUG}; + print STDERR "Could not construct a transport for URL: $url\n"; + print STDERR "Is this URL correct?\n"; + pod2usage(2); +} + +if (!$query || $query eq '-') { + print STDERR "Interactive mode engaged! Waiting for a query on ...\n" + if -t STDIN; ## no critic (InputOutput::ProhibitInteractiveTest) + $query = do { local $/; <> }; +} + +my $resp = $client->execute($query, $variables, $operation_name, $transport); +my $err = $resp->{errors}; +$unpack = 0 if $err; +my $data = $unpack ? $resp->{data} : $resp; + +if ($outfile) { + open(my $out, '>', $outfile) or die "Open $outfile failed: $!"; + *STDOUT = $out; +} + +print_data($data, $format); + +exit($unpack && $err ? 1 : 0); + +sub print_data { + my ($data, $format) = @_; + $format = lc($format || 'json:pretty'); + if ($format eq 'json' || $format eq 'json:pretty') { + my %opts = (canonical => 1, utf8 => 1); + $opts{pretty} = 1 if $format eq 'json:pretty'; + print JSON::MaybeXS->new(%opts)->encode($data); + } + elsif ($format eq 'yaml') { + eval { require YAML } or die "Missing dependency: YAML\n"; + print YAML::Dump($data); + } + elsif ($format eq 'csv' || $format eq 'tsv' || $format eq 'table') { + my $sep = $format eq 'tsv' ? "\t" : ','; + + my $unpacked = $data; + $unpacked = $data->{data} if !$unpack && !$err; + + # check the response to see if it can be formatted + my @columns; + my $rows = []; + if (keys %$unpacked == 1) { + my ($val) = values %$unpacked; + if (ref $val eq 'ARRAY') { + my $first = $val->[0]; + if ($first && ref $first eq 'HASH') { + @columns = sort keys %$first; + $rows = [ + map { [@{$_}{@columns}] } @$val + ]; + } + elsif ($first) { + @columns = keys %$unpacked; + $rows = [map { [$_] } @$val]; + } + } + } + + if (@columns) { + if ($format eq 'table') { + eval { require Text::Table::Any } or die "Missing dependency: Text::Table::Any\n"; + my $table = Text::Table::Any::table( + header_row => 1, + rows => [[@columns], @$rows], + backend => $ENV{PERL_TEXT_TABLE}, + ); + print $table; + } + else { + eval { require Text::CSV } or die "Missing dependency: Text::CSV\n"; + my $csv = Text::CSV->new({binary => 1, sep => $sep, eol => $/}); + $csv->print(*STDOUT, [@columns]); + for my $row (@$rows) { + $csv->print(*STDOUT, $row); + } + } + } + else { + print_data($data); + print STDERR sprintf("Error: Response could not be formatted as %s.\n", uc($format)); + exit 3; + } + } + elsif ($format eq 'perl') { + eval { require Data::Dumper } or die "Missing dependency: Data::Dumper\n"; + print Data::Dumper::Dumper($data); + } + else { + print STDERR "Error: Format not supported: $format\n"; + print_data($data); + exit 3; + } +} + +sub expand_vars { + my $vars = shift; + + my %out; + while (my ($key, $value) = each %$vars) { + my $var = $value; + my @segments = split(/\./, $key); + for my $segment (reverse @segments) { + my $saved = $var; + if ($segment =~ /^(\d+)$/) { + $var = []; + $var->[$segment] = $saved; + } + else { + $var = {}; + $var->{$segment} = $saved; + } + } + %out = (%out, %$var); + } + + return \%out; +} + +sub pod2usage { + eval { require Pod::Usage }; + if ($@) { + my $ref = $VERSION eq '999.999' ? 'master' : "v$VERSION"; + my $exit = (@_ == 1 && $_[0] =~ /^\d+$/ && $_[0]) // + (@_ % 2 == 0 && {@_}->{'-exitval'}) // 2; + print STDERR < [ [--variables JSON] | [--variable KEY=VALUE]... ] + [--operation-name NAME] [--transport KEY=VALUE]... + [--[no-]unpack] [--format json|json:pretty|yaml|perl|csv|tsv|table] + [--output FILE] + + graphql --version|--help|--manual + +=head1 DESCRIPTION + +C is a command-line program for executing queries and mutations on +a L server. + +=head1 INSTALL + +There are several ways to install F to your system. + +=head2 from CPAN + +You can install F using L: + + cpanm GraphQL::Client + +=head2 from GitHub + +You can also choose to download F as a self-contained executable: + + curl -OL https://raw.githubusercontent.com/chazmcgarvey/graphql-client/solo/graphql + chmod +x graphql + +To hack on the code, clone the repo instead: + + git clone https://github.com/chazmcgarvey/graphql-client.git + cd graphql-client + make bootstrap # installs dependencies; requires cpanm + +=head1 OPTIONS + +=head2 C<--url URL> + +The URL of the GraphQL server endpoint. + +If no C<--url> option is given, the first argument is assumed to be the URL. + +This option is required. + +Alias: C<-u> + +=head2 C<--query STR> + +The query or mutation to execute. + +If no C<--query> option is given, the next argument (after URL) is assumed to be the query. + +If the value is "-" (which is the default), the query will be read from C. + +See: L + +Alias: C<--mutation> + +=head2 C<--variables JSON> + +Provide the variables as a JSON object. + +Aliases: C<--vars>, C<-V> + +=head2 C<--variable KEY=VALUE> + +An alternative way to provide variables. Repeat this option to provide multiple variables. + +If used in combination with L, this option is silently ignored. + +See: L + +Aliases: C<--var>, C<-d> + +=head2 C<--operation-name NAME> + +Inform the server which query/mutation to execute. + +Alias: C<-n> + +=head2 C<--output FILE> + +Write the response to a file instead of STDOUT. + +Alias: C<-o> + +=head2 C<--transport KEY=VALUE> + +Key-value pairs for configuring the transport (usually HTTP). + +Alias: C<-t> + +=head2 C<--format STR> + +Specify the output format to use. See L. + +Alias: C<-f> + +=head2 C<--unpack> + +Enables unpack mode. + +By default, the response structure is printed as-is from the server, and the program exits 0. + +When unpack mode is enabled, if the response completes with no errors, only the data section of +the response is printed and the program exits 0. If the response has errors, the whole response +structure is printed as-is and the program exits 1. + +See L. + +=head1 FORMAT + +The argument for L can be one of: + +=over 4 + +=item * + +C - Comma-separated values (requires L) + +=item * + +C - Human-readable JSON (default) + +=item * + +C - JSON + +=item * + +C - Perl code (requires L) + +=item * + +C - Table (requires L) + +=item * + +C - Tab-separated values (requires L) + +=item * + +C - YAML (requires L) + +=back + +The C, C, and C
formats will only work if the response has a particular shape: + + { + "data" : { + "onefield" : [ + { + "key" : "value", + ... + }, + ... + ] + } + } + +or + + { + "data" : { + "onefield" : [ + "value", + ... + ] + } + } + +If the response cannot be formatted, the default format will be used instead, an error message will +be printed to STDERR, and the program will exit 3. + +Table formatting can be done by one of several different modules, each with its own features and +bugs. The default module is L, but this can be overridden using the +C environment variable if desired, like this: + + PERL_TEXT_TABLE=Text::Table::HTML graphql ... -f table + +The list of supported modules is at L. + +=head1 EXAMPLES + +Different ways to provide the query/mutation to execute: + + graphql http://myserver/graphql {hello} + + echo {hello} | graphql http://myserver/graphql + + graphql http://myserver/graphql < {hello} + > END + + graphql http://myserver/graphql + Interactive mode engaged! Waiting for a query on ... + {hello} + ^D + +Execute a query with variables: + + graphql http://myserver/graphql < query HeroNameAndFriends($episode: Episode) { + > hero(episode: $episode) { + > name + > friends { + > name + > } + > } + > } + > END + + graphql http://myserver/graphql --vars '{"episode":"JEDI"}' + +Configure the transport: + + graphql http://myserver/graphql {hello} -t headers.authorization='Basic s3cr3t' + +This example shows the effect of L: + + graphql http://myserver/graphql {hello} + + # Output: + { + "data" : { + "hello" : "Hello world!" + } + } + + graphql http://myserver/graphql {hello} --unpack + + # Output: + { + "hello" : "Hello world!" + } + +=head1 ENVIRONMENT + +Some environment variables affect the way C behaves: + +=over 4 + +=item * + +C - Set to 1 to print diagnostic messages to STDERR. + +=item * + +C - Set the HTTP user agent string. + +=item * + +C - Set table format backend; see L. + +=back + +=head1 EXIT STATUS + +Here is a consolidated summary of what exit statuses mean: + +=over 4 + +=item * + +C<0> - Success + +=item * + +C<1> - Client or server errors + +=item * + +C<2> - Option usage is wrong + +=item * + +C<3> - Could not format the response as requested + +=back + +=head1 BUGS + +Please report any bugs or feature requests on the bugtracker website +L + +When submitting a bug or request, please include a test-file or a +patch to an existing test-file that illustrates the bug or desired +feature. + +=head1 AUTHOR + +Charles McGarvey + +=head1 COPYRIGHT AND LICENSE + +This software is copyright (c) 2020 by Charles McGarvey. + +This is free software; you can redistribute it and/or modify it under +the same terms as the Perl 5 programming language system itself. + +=cut diff --git a/lib/GraphQL/Client.pm b/lib/GraphQL/Client.pm new file mode 100644 index 0000000..2f844fe --- /dev/null +++ b/lib/GraphQL/Client.pm @@ -0,0 +1,370 @@ +package GraphQL::Client; +# ABSTRACT: A GraphQL client + +use warnings; +use strict; + +use Module::Load qw(load); +use Scalar::Util qw(reftype); +use namespace::clean; + +our $VERSION = '0.600'; # VERSION + +sub _croak { require Carp; goto &Carp::croak } +sub _throw { GraphQL::Client::Error->throw(@_) } + +sub new { + my $class = shift; + bless {@_}, $class; +} + +sub execute { + my $self = shift; + my ($query, $variables, $operation_name, $options) = @_; + + if ((reftype($operation_name) || '') eq 'HASH') { + $options = $operation_name; + $operation_name = undef; + } + + my $request = { + query => $query, + ($variables && %$variables) ? (variables => $variables) : (), + $operation_name ? (operationName => $operation_name) : (), + }; + + return $self->_handle_result($self->transport->execute($request, $options)); +} + +sub _handle_result { + my $self = shift; + my ($result) = @_; + + my $handle_result = sub { + my $result = shift; + my $resp = $result->{response}; + if (my $exception = $result->{error}) { + unshift @{$resp->{errors}}, { + message => "$exception", + }; + } + if ($self->unpack) { + if ($resp->{errors}) { + _throw $resp->{errors}[0]{message}, { + type => 'graphql', + response => $resp, + details => $result->{details}, + }; + } + return $resp->{data}; + } + return $resp; + }; + + if (eval { $result->isa('Future') }) { + return $result->transform( + done => sub { + my $result = shift; + my $resp = eval { $handle_result->($result) }; + if (my $err = $@) { + Future::Exception->throw("$err", $err->{type}, $err->{response}, $err->{details}); + } + return $resp; + }, + ); + } + else { + return $handle_result->($result); + } +} + +sub url { + my $self = shift; + $self->{url}; +} + +sub class { + my $self = shift; + $self->{class}; +} + +sub transport { + my $self = shift; + $self->{transport} //= do { + my $class = $self->_transport_class; + eval { load $class }; + if ((my $err = $@) || !$class->can('execute')) { + $err ||= "Loaded $class, but it doesn't look like a proper transport.\n"; + warn $err if $ENV{GRAPHQL_CLIENT_DEBUG}; + _croak "Failed to load transport for \"${class}\""; + } + $class->new(%$self); + }; +} + +sub unpack { + my $self = shift; + $self->{unpack} //= 0; +} + +sub _url_protocol { + my $self = shift; + + my $url = $self->url; + my ($protocol) = $url =~ /^([^+:]+)/; + + return $protocol; +} + +sub _transport_class { + my $self = shift; + + return _expand_class($self->{class}) if $self->{class}; + + my $protocol = $self->_url_protocol; + _croak 'Failed to determine transport from URL' if !$protocol; + + my $class = lc($protocol); + $class =~ s/[^a-z]/_/g; + + return _expand_class($class); +} + +sub _expand_class { + my $class = shift; + $class = "GraphQL::Client::$class" unless $class =~ s/^\+//; + $class; +} + +{ + package GraphQL::Client::Error; + + use warnings; + use strict; + + use overload '""' => \&error, fallback => 1; + + sub new { bless {%{$_[2] || {}}, error => $_[1] || 'Something happened'}, $_[0] } + + sub error { "$_[0]->{error}" } + sub type { "$_[0]->{type}" } + + sub throw { + my $self = shift; + die $self if ref $self; + die $self->new(@_); + } +} + +1; + +__END__ + +=pod + +=encoding UTF-8 + +=head1 NAME + +GraphQL::Client - A GraphQL client + +=head1 VERSION + +version 0.600 + +=head1 SYNOPSIS + + my $graphql = GraphQL::Client->new(url => 'http://localhost:4000/graphql'); + + # Example: Hello world! + + my $response = $graphql->execute('{hello}'); + + # Example: Kitchen sink + + my $query = q[ + query GetHuman { + human(id: $human_id) { + name + height + } + } + ]; + my $variables = { + human_id => 1000, + }; + my $operation_name = 'GetHuman'; + my $transport_options = { + headers => { + authorization => 'Bearer s3cr3t', + }, + }; + my $response = $graphql->execute($query, $variables, $operation_name, $transport_options); + + # Example: Asynchronous with Mojo::UserAgent (promisify requires Future::Mojo) + + my $ua = Mojo::UserAgent->new; + my $graphql = GraphQL::Client->new(ua => $ua, url => 'http://localhost:4000/graphql'); + + my $future = $graphql->execute('{hello}'); + + $future->promisify->then(sub { + my $response = shift; + ... + }); + +=head1 DESCRIPTION + +C provides a simple way to execute L queries and +mutations on a server. + +This module is the programmatic interface. There is also a L. + +GraphQL servers are usually served over HTTP. The provided transport, L, lets +you plug in your own user agent, so this client works naturally with L, +L, and more. You can also use L middleware. + +=head1 ATTRIBUTES + +=head2 url + +The URL of a GraphQL endpoint, e.g. C<"http://myapiserver/graphql">. + +=head2 class + +The package name of a transport. + +By default this is automatically determined from the protocol portion of the L. + +=head2 transport + +The transport object. + +By default this is automatically constructed based on the L. + +=head2 unpack + +Whether or not to "unpack" the response, which enables a different style for error-handling. + +Default is 0. + +See L. + +=head1 METHODS + +=head2 new + + $graphql = GraphQL::Client->new(%attributes); + +Construct a new client. + +=head2 execute + + $response = $graphql->execute($query); + $response = $graphql->execute($query, \%variables); + $response = $graphql->execute($query, \%variables, $operation_name); + $response = $graphql->execute($query, \%variables, $operation_name, \%transport_options); + $response = $graphql->execute($query, \%variables, \%transport_options); + +Execute a request on a GraphQL server, and get a response. + +By default, the response will either be a hashref with the following structure or a L that +resolves to such a hashref, depending on the transport and how it is configured. + + { + data => { + field1 => {...}, # or [...] + ... + }, + errors => [ + { message => 'some error message blah blah blah' }, + ... + ], + } + +Note: Setting the L attribute affects the response shape. + +=head1 ERROR HANDLING + +There are two different styles for handling errors. + +If L is 0 (off), every response -- whether success or failure -- is enveloped like this: + + { + data => {...}, + errors => [...], + } + +where C might be missing or undef if errors occurred (though not necessarily) and C +will be missing if the response completed without error. + +It is up to you to check for errors in the response, so your code might look like this: + + my $response = $graphql->execute(...); + if (my $errors = $response->{errors}) { + # handle $errors + } + else { + my $data = $response->{data}; + # do something with $data + } + +If C is 1 (on), then L will return just the data if there were no errors, +otherwise it will throw an exception. So your code would instead look like this: + + my $data = eval { $graphql->execute(...) }; + if (my $error = $@) { + # handle errors + } + else { + # do something with $data + } + +Or if you want to handle errors in a different stack frame, your code is simply this: + + my $data = $graphql->execute(...); + # do something with $data + +Both styles map to L responses intuitively. If C is 0, the response always resolves +to the envelope structure. If C is 1, successful responses will resolve to just the data and +errors will fail/reject. + +=head1 SEE ALSO + +=over 4 + +=item * + +L - CLI program + +=item * + +L - Perl implementation of a GraphQL server + +=item * + +L - GraphQL project website + +=back + +=head1 BUGS + +Please report any bugs or feature requests on the bugtracker website +L + +When submitting a bug or request, please include a test-file or a +patch to an existing test-file that illustrates the bug or desired +feature. + +=head1 AUTHOR + +Charles McGarvey + +=head1 COPYRIGHT AND LICENSE + +This software is copyright (c) 2020 by Charles McGarvey. + +This is free software; you can redistribute it and/or modify it under +the same terms as the Perl 5 programming language system itself. + +=cut diff --git a/lib/GraphQL/Client/http.pm b/lib/GraphQL/Client/http.pm new file mode 100644 index 0000000..7adf4a4 --- /dev/null +++ b/lib/GraphQL/Client/http.pm @@ -0,0 +1,326 @@ +package GraphQL::Client::http; +# ABSTRACT: GraphQL over HTTP + +use 5.010; +use warnings; +use strict; + +use HTTP::AnyUA::Util qw(www_form_urlencode); +use HTTP::AnyUA; +use namespace::clean; + +our $VERSION = '0.600'; # VERSION + +sub _croak { require Carp; goto &Carp::croak } + +sub new { + my $class = shift; + my $self = @_ % 2 == 0 ? {@_} : $_[0]; + bless $self, $class; +} + +sub execute { + my $self = shift; + my ($request, $options) = @_; + + my $url = delete $options->{url} || $self->url; + my $method = delete $options->{method} || $self->method; + + $request && ref($request) eq 'HASH' or _croak q{Usage: $http->execute(\%request)}; + $request->{query} or _croak q{Request must have a query}; + $url or _croak q{URL must be provided}; + + my $data = {%$request}; + + if ($method eq 'GET' || $method eq 'HEAD') { + $data->{variables} = $self->json->encode($data->{variables}) if $data->{variables}; + my $params = www_form_urlencode($data); + my $sep = $url =~ /^[^#]+\?/ ? '&' : '?'; + $url =~ s/#/${sep}${params}#/ or $url .= "${sep}${params}"; + } + else { + my $encoded_data = $self->json->encode($data); + $options->{content} = $encoded_data; + $options->{headers}{'content-length'} = length $encoded_data; + $options->{headers}{'content-type'} = 'application/json'; + } + + return $self->_handle_response($self->any_ua->request($method, $url, $options)); +} + +sub _handle_response { + my $self = shift; + my ($resp) = @_; + + if (eval { $resp->isa('Future') }) { + return $resp->followed_by(sub { + my $f = shift; + + if (my ($exception, $category, @other) = $f->failure) { + if (ref $exception eq 'HASH') { + my $resp = $exception; + return Future->done($self->_handle_error($resp)); + } + + return Future->done({ + error => $exception, + response => undef, + details => { + exception_details => [$category, @other], + }, + }); + } + + my $resp = $f->get; + return Future->done($self->_handle_success($resp)); + }); + } + else { + return $self->_handle_error($resp) if !$resp->{success}; + return $self->_handle_success($resp); + } +} + +sub _handle_error { + my $self = shift; + my ($resp) = @_; + + my $data = eval { $self->json->decode($resp->{content}) }; + my $content = $resp->{content} // 'No content'; + my $reason = $resp->{reason} // ''; + my $message = "HTTP transport returned $resp->{status} ($reason): $content"; + + return { + error => $message, + response => $data, + details => { + http_response => $resp, + }, + }; +} + +sub _handle_success { + my $self = shift; + my ($resp) = @_; + + my $data = eval { $self->json->decode($resp->{content}) }; + if (my $exception = $@) { + return { + error => "HTTP transport failed to decode response: $exception", + response => undef, + details => { + http_response => $resp, + }, + }; + } + + return { + response => $data, + details => { + http_response => $resp, + }, + }; +} + +sub ua { + my $self = shift; + $self->{ua} //= do { + require HTTP::Tiny; + HTTP::Tiny->new( + agent => $ENV{GRAPHQL_CLIENT_HTTP_USER_AGENT} // "perl-graphql-client/$VERSION", + ); + }; +} + +sub any_ua { + my $self = shift; + $self->{any_ua} //= HTTP::AnyUA->new(ua => $self->ua); +} + +sub url { + my $self = shift; + $self->{url}; +} + +sub method { + my $self = shift; + $self->{method} // 'POST'; +} + +sub json { + my $self = shift; + $self->{json} //= do { + require JSON::MaybeXS; + JSON::MaybeXS->new(utf8 => 1); + }; +} + +1; + +__END__ + +=pod + +=encoding UTF-8 + +=head1 NAME + +GraphQL::Client::http - GraphQL over HTTP + +=head1 VERSION + +version 0.600 + +=head1 SYNOPSIS + + my $transport = GraphQL::Client::http->new( + url => 'http://localhost:5000/graphql', + method => 'POST', + ); + + my $request = { + query => 'query Greet($name: String) { hello(name: $name) }', + operationName => 'Greet', + variables => { name => 'Bob' }, + }; + my $options = { + headers => { + authorization => 'Bearer s3cr3t', + }, + }; + my $response = $client->execute($request, $options); + +=head1 DESCRIPTION + +You probably shouldn't use this directly. Instead use L. + +C is a GraphQL transport for HTTP. GraphQL is not required to be transported +via HTTP, but this is definitely the most common way. + +This also serves as a reference implementation for C transports. + +=head1 ATTRIBUTES + +=head2 ua + +A user agent, such as: + +=over 4 + +=item * + +instance of a L (this is the default if no user agent is provided) + +=item * + +instance of a L + +=item * + +the string C<"AnyEvent::HTTP"> + +=item * + +and more... + +=back + +See L. + +=head2 any_ua + +The L instance. Can be used to apply middleware if desired. + +=head2 url + +The http URL of a GraphQL endpoint, e.g. C<"http://myapiserver/graphql">. + +=head2 method + +The HTTP method to use when querying the GraphQL server. Can be one of: + +=over 4 + +=item * + +C + +=item * + +C (default) + +=back + +GraphQL servers should be able to handle both, but you can set this explicitly to one or the other +if you're dealing with a server that is opinionated. You can also provide a different HTTP method, +but anything other than C and C are less likely to work. + +=head2 json + +The L (or compatible) object used for encoding and decoding data structures to and from +the GraphQL server. + +Defaults to a L. + +=head1 METHODS + +=head2 new + + $transport = GraphQL::Client::http->new(%attributes); + +Construct a new GraphQL HTTP transport. + +See L. + +=head2 execute + + $response = $client->execute(\%request); + $response = $client->execute(\%request, \%options); + +Get a response from the GraphQL server. + +The C<%data> structure must have a C key whose value is the query or mutation string. It may +optionally have a C hashref and an C string. + +The C<%options> structure is optional and may contain options passed through to the user agent. The +only useful options are C (which should have a hashref value) and C and C to +override the attributes of the same names. + +The response will either be a hashref with the following structure or a L that resolves to +such a hashref: + + { + response => { # decoded response (may be undef if an error occurred) + data => {...}, + errors => [...], + }, + error => 'Something happened', # may be ommitted if no error occurred + details => { # optional information which may aide troubleshooting + }, + } + +=head1 SEE ALSO + +L + +=head1 BUGS + +Please report any bugs or feature requests on the bugtracker website +L + +When submitting a bug or request, please include a test-file or a +patch to an existing test-file that illustrates the bug or desired +feature. + +=head1 AUTHOR + +Charles McGarvey + +=head1 COPYRIGHT AND LICENSE + +This software is copyright (c) 2020 by Charles McGarvey. + +This is free software; you can redistribute it and/or modify it under +the same terms as the Perl 5 programming language system itself. + +=cut diff --git a/lib/GraphQL/Client/https.pm b/lib/GraphQL/Client/https.pm new file mode 100644 index 0000000..6467664 --- /dev/null +++ b/lib/GraphQL/Client/https.pm @@ -0,0 +1,60 @@ +package GraphQL::Client::https; +# ABSTRACT: GraphQL over HTTPS + +use warnings; +use strict; + +use parent 'GraphQL::Client::http'; + +our $VERSION = '0.600'; # VERSION + +sub new { + my $class = shift; + GraphQL::Client::http->new(@_); +} + +1; + +__END__ + +=pod + +=encoding UTF-8 + +=head1 NAME + +GraphQL::Client::https - GraphQL over HTTPS + +=head1 VERSION + +version 0.600 + +=head1 DESCRIPTION + +This is the same as L. + +=head1 SEE ALSO + +L + +=head1 BUGS + +Please report any bugs or feature requests on the bugtracker website +L + +When submitting a bug or request, please include a test-file or a +patch to an existing test-file that illustrates the bug or desired +feature. + +=head1 AUTHOR + +Charles McGarvey + +=head1 COPYRIGHT AND LICENSE + +This software is copyright (c) 2020 by Charles McGarvey. + +This is free software; you can redistribute it and/or modify it under +the same terms as the Perl 5 programming language system itself. + +=cut diff --git a/t/00-compile.t b/t/00-compile.t new file mode 100644 index 0000000..676ed70 --- /dev/null +++ b/t/00-compile.t @@ -0,0 +1,99 @@ +use 5.006; +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::Compile 2.058 + +use Test::More; + +plan tests => 4 + ($ENV{AUTHOR_TESTING} ? 1 : 0); + +my @module_files = ( + 'GraphQL/Client.pm', + 'GraphQL/Client/http.pm', + 'GraphQL/Client/https.pm' +); + +my @scripts = ( + 'bin/graphql' +); + +# no fake home requested + +my @switches = ( + -d 'blib' ? '-Mblib' : '-Ilib', +); + +use File::Spec; +use IPC::Open3; +use IO::Handle; + +open my $stdin, '<', File::Spec->devnull or die "can't open devnull: $!"; + +my @warnings; +for my $lib (@module_files) +{ + # see L + my $stderr = IO::Handle->new; + + diag('Running: ', join(', ', map { my $str = $_; $str =~ s/'/\\'/g; q{'} . $str . q{'} } + $^X, @switches, '-e', "require q[$lib]")) + if $ENV{PERL_COMPILE_TEST_DEBUG}; + + my $pid = open3($stdin, '>&STDERR', $stderr, $^X, @switches, '-e', "require q[$lib]"); + binmode $stderr, ':crlf' if $^O eq 'MSWin32'; + my @_warnings = <$stderr>; + waitpid($pid, 0); + is($?, 0, "$lib loaded ok"); + + shift @_warnings if @_warnings and $_warnings[0] =~ /^Using .*\bblib/ + and not eval { +require blib; blib->VERSION('1.01') }; + + if (@_warnings) + { + warn @_warnings; + push @warnings, @_warnings; + } +} + +foreach my $file (@scripts) +{ SKIP: { + open my $fh, '<', $file or warn("Unable to open $file: $!"), next; + my $line = <$fh>; + + close $fh and skip("$file isn't perl", 1) unless $line =~ /^#!\s*(?:\S*perl\S*)((?:\s+-\w*)*)(?:\s*#.*)?$/; + @switches = (@switches, split(' ', $1)) if $1; + + close $fh and skip("$file uses -T; not testable with PERL5LIB", 1) + if grep { $_ eq '-T' } @switches and $ENV{PERL5LIB}; + + my $stderr = IO::Handle->new; + + diag('Running: ', join(', ', map { my $str = $_; $str =~ s/'/\\'/g; q{'} . $str . q{'} } + $^X, @switches, '-c', $file)) + if $ENV{PERL_COMPILE_TEST_DEBUG}; + + my $pid = open3($stdin, '>&STDERR', $stderr, $^X, @switches, '-c', $file); + binmode $stderr, ':crlf' if $^O eq 'MSWin32'; + my @_warnings = <$stderr>; + waitpid($pid, 0); + is($?, 0, "$file compiled ok"); + + shift @_warnings if @_warnings and $_warnings[0] =~ /^Using .*\bblib/ + and not eval { +require blib; blib->VERSION('1.01') }; + + # in older perls, -c output is simply the file portion of the path being tested + if (@_warnings = grep { !/\bsyntax OK$/ } + grep { chomp; $_ ne (File::Spec->splitpath($file))[2] } @_warnings) + { + warn @_warnings; + push @warnings, @_warnings; + } +} } + + + +is(scalar(@warnings), 0, 'no warnings found') + or diag 'got warnings: ', ( Test::More->can('explain') ? Test::More::explain(\@warnings) : join("\n", '', @warnings) ) if $ENV{AUTHOR_TESTING}; + + diff --git a/t/00-report-prereqs.dd b/t/00-report-prereqs.dd new file mode 100644 index 0000000..8ec21f8 --- /dev/null +++ b/t/00-report-prereqs.dd @@ -0,0 +1,91 @@ +do { my $x = { + 'configure' => { + 'requires' => { + 'ExtUtils::MakeMaker' => '0' + } + }, + 'develop' => { + 'recommends' => { + 'App::FatPacker' => '0', + 'CPAN::Meta' => '0', + 'Capture::Tiny' => '0', + 'Config' => '0', + 'File::pushd' => '0', + 'Getopt::Long' => '0', + 'MetaCPAN::API' => '0', + 'Module::CoreList' => '0', + 'Path::Tiny' => '0', + 'Perl::Strip' => '0' + }, + 'requires' => { + 'Dist::Zilla' => '5', + 'Dist::Zilla::Plugin::ConsistentVersionTest' => '0', + 'Dist::Zilla::Plugin::Prereqs' => '0', + 'Dist::Zilla::Plugin::RemovePhasedPrereqs' => '0', + 'Dist::Zilla::Plugin::Run::Release' => '0', + 'Dist::Zilla::PluginBundle::Author::CCM' => '0', + 'Dist::Zilla::PluginBundle::Filter' => '0', + 'Pod::Coverage::TrustPod' => '0', + 'Software::License::Perl_5' => '0', + 'Test::CPAN::Changes' => '0.19', + 'Test::CPAN::Meta' => '0', + 'Test::CleanNamespaces' => '0.15', + 'Test::ConsistentVersion' => '0', + 'Test::EOL' => '0', + 'Test::MinimumVersion' => '0', + 'Test::More' => '0.96', + 'Test::NoTabs' => '0', + 'Test::Perl::Critic' => '0', + 'Test::Pod' => '1.41', + 'Test::Pod::Coverage' => '1.08', + 'Test::Portability::Files' => '0' + } + }, + 'runtime' => { + 'recommends' => { + 'HTTP::Tiny' => '0', + 'Pod::Usage' => '0' + }, + 'requires' => { + 'Carp' => '0', + 'Getopt::Long' => '0', + 'HTTP::AnyUA' => '0', + 'HTTP::AnyUA::Util' => '0', + 'JSON::MaybeXS' => '0', + 'Module::Load' => '0', + 'Scalar::Util' => '0', + 'namespace::clean' => '0', + 'overload' => '0', + 'parent' => '0', + 'perl' => '5.010', + 'strict' => '0', + 'warnings' => '0' + }, + 'suggests' => { + 'Data::Dumper' => '0', + 'Text::CSV' => '0', + 'Text::Table::Any' => '0', + 'YAML' => '0' + } + }, + 'test' => { + 'recommends' => { + 'CPAN::Meta' => '2.120900' + }, + 'requires' => { + 'ExtUtils::MakeMaker' => '0', + 'File::Spec' => '0', + 'FindBin' => '0', + 'Future' => '0', + 'HTTP::AnyUA::Backend' => '0', + 'IO::Handle' => '0', + 'IPC::Open3' => '0', + 'Test::Deep' => '0', + 'Test::Exception' => '0', + 'Test::More' => '0', + 'lib' => '0' + } + } + }; + $x; + } \ No newline at end of file diff --git a/t/00-report-prereqs.t b/t/00-report-prereqs.t new file mode 100644 index 0000000..c72183a --- /dev/null +++ b/t/00-report-prereqs.t @@ -0,0 +1,193 @@ +#!perl + +use strict; +use warnings; + +# This test was generated by Dist::Zilla::Plugin::Test::ReportPrereqs 0.027 + +use Test::More tests => 1; + +use ExtUtils::MakeMaker; +use File::Spec; + +# from $version::LAX +my $lax_version_re = + qr/(?: undef | (?: (?:[0-9]+) (?: \. | (?:\.[0-9]+) (?:_[0-9]+)? )? + | + (?:\.[0-9]+) (?:_[0-9]+)? + ) | (?: + v (?:[0-9]+) (?: (?:\.[0-9]+)+ (?:_[0-9]+)? )? + | + (?:[0-9]+)? (?:\.[0-9]+){2,} (?:_[0-9]+)? + ) + )/x; + +# hide optional CPAN::Meta modules from prereq scanner +# and check if they are available +my $cpan_meta = "CPAN::Meta"; +my $cpan_meta_pre = "CPAN::Meta::Prereqs"; +my $HAS_CPAN_META = eval "require $cpan_meta; $cpan_meta->VERSION('2.120900')" && eval "require $cpan_meta_pre"; ## no critic + +# Verify requirements? +my $DO_VERIFY_PREREQS = 1; + +sub _max { + my $max = shift; + $max = ( $_ > $max ) ? $_ : $max for @_; + return $max; +} + +sub _merge_prereqs { + my ($collector, $prereqs) = @_; + + # CPAN::Meta::Prereqs object + if (ref $collector eq $cpan_meta_pre) { + return $collector->with_merged_prereqs( + CPAN::Meta::Prereqs->new( $prereqs ) + ); + } + + # Raw hashrefs + for my $phase ( keys %$prereqs ) { + for my $type ( keys %{ $prereqs->{$phase} } ) { + for my $module ( keys %{ $prereqs->{$phase}{$type} } ) { + $collector->{$phase}{$type}{$module} = $prereqs->{$phase}{$type}{$module}; + } + } + } + + return $collector; +} + +my @include = qw( + +); + +my @exclude = qw( + +); + +# Add static prereqs to the included modules list +my $static_prereqs = do './t/00-report-prereqs.dd'; + +# Merge all prereqs (either with ::Prereqs or a hashref) +my $full_prereqs = _merge_prereqs( + ( $HAS_CPAN_META ? $cpan_meta_pre->new : {} ), + $static_prereqs +); + +# Add dynamic prereqs to the included modules list (if we can) +my ($source) = grep { -f } 'MYMETA.json', 'MYMETA.yml'; +my $cpan_meta_error; +if ( $source && $HAS_CPAN_META + && (my $meta = eval { CPAN::Meta->load_file($source) } ) +) { + $full_prereqs = _merge_prereqs($full_prereqs, $meta->prereqs); +} +else { + $cpan_meta_error = $@; # capture error from CPAN::Meta->load_file($source) + $source = 'static metadata'; +} + +my @full_reports; +my @dep_errors; +my $req_hash = $HAS_CPAN_META ? $full_prereqs->as_string_hash : $full_prereqs; + +# Add static includes into a fake section +for my $mod (@include) { + $req_hash->{other}{modules}{$mod} = 0; +} + +for my $phase ( qw(configure build test runtime develop other) ) { + next unless $req_hash->{$phase}; + next if ($phase eq 'develop' and not $ENV{AUTHOR_TESTING}); + + for my $type ( qw(requires recommends suggests conflicts modules) ) { + next unless $req_hash->{$phase}{$type}; + + my $title = ucfirst($phase).' '.ucfirst($type); + my @reports = [qw/Module Want Have/]; + + for my $mod ( sort keys %{ $req_hash->{$phase}{$type} } ) { + next if $mod eq 'perl'; + next if grep { $_ eq $mod } @exclude; + + my $file = $mod; + $file =~ s{::}{/}g; + $file .= ".pm"; + my ($prefix) = grep { -e File::Spec->catfile($_, $file) } @INC; + + my $want = $req_hash->{$phase}{$type}{$mod}; + $want = "undef" unless defined $want; + $want = "any" if !$want && $want == 0; + + my $req_string = $want eq 'any' ? 'any version required' : "version '$want' required"; + + if ($prefix) { + my $have = MM->parse_version( File::Spec->catfile($prefix, $file) ); + $have = "undef" unless defined $have; + push @reports, [$mod, $want, $have]; + + if ( $DO_VERIFY_PREREQS && $HAS_CPAN_META && $type eq 'requires' ) { + if ( $have !~ /\A$lax_version_re\z/ ) { + push @dep_errors, "$mod version '$have' cannot be parsed ($req_string)"; + } + elsif ( ! $full_prereqs->requirements_for( $phase, $type )->accepts_module( $mod => $have ) ) { + push @dep_errors, "$mod version '$have' is not in required range '$want'"; + } + } + } + else { + push @reports, [$mod, $want, "missing"]; + + if ( $DO_VERIFY_PREREQS && $type eq 'requires' ) { + push @dep_errors, "$mod is not installed ($req_string)"; + } + } + } + + if ( @reports ) { + push @full_reports, "=== $title ===\n\n"; + + my $ml = _max( map { length $_->[0] } @reports ); + my $wl = _max( map { length $_->[1] } @reports ); + my $hl = _max( map { length $_->[2] } @reports ); + + if ($type eq 'modules') { + splice @reports, 1, 0, ["-" x $ml, "", "-" x $hl]; + push @full_reports, map { sprintf(" %*s %*s\n", -$ml, $_->[0], $hl, $_->[2]) } @reports; + } + else { + splice @reports, 1, 0, ["-" x $ml, "-" x $wl, "-" x $hl]; + push @full_reports, map { sprintf(" %*s %*s %*s\n", -$ml, $_->[0], $wl, $_->[1], $hl, $_->[2]) } @reports; + } + + push @full_reports, "\n"; + } + } +} + +if ( @full_reports ) { + diag "\nVersions for all modules listed in $source (including optional ones):\n\n", @full_reports; +} + +if ( $cpan_meta_error || @dep_errors ) { + diag "\n*** WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING ***\n"; +} + +if ( $cpan_meta_error ) { + my ($orig_source) = grep { -f } 'MYMETA.json', 'MYMETA.yml'; + diag "\nCPAN::Meta->load_file('$orig_source') failed with: $cpan_meta_error\n"; +} + +if ( @dep_errors ) { + diag join("\n", + "\nThe following REQUIRED prerequisites were not satisfied:\n", + @dep_errors, + "\n" + ); +} + +pass; + +# vim: ts=4 sts=4 sw=4 et: diff --git a/t/client.t b/t/client.t new file mode 100755 index 0000000..4775b70 --- /dev/null +++ b/t/client.t @@ -0,0 +1,165 @@ +#!/usr/bin/env perl + +use warnings; +use strict; + +use FindBin '$Bin'; +use lib "$Bin/lib"; + +use Test::Exception; +use Test::More; + +use Future; +use GraphQL::Client; +use MockTransport; + +subtest 'transport' => sub { + my $client = GraphQL::Client->new(class => 'http'); + isa_ok($client->transport, 'GraphQL::Client::http', 'decide transport from class'); + + $client = GraphQL::Client->new(url => 'https://localhost:4000/graphql'); + isa_ok($client->transport, 'GraphQL::Client::http', 'decide transport from url'); + + $client = GraphQL::Client->new(class => 'not a real class'); + is($client->class, 'not a real class', 'class constructor works'); + throws_ok { $client->transport } qr/^Failed to load transport/, 'throws if invalid transport'; +}; + +subtest 'request to transport' => sub { + my $mock = MockTransport->new; + my $client = GraphQL::Client->new(transport => $mock); + + $client->execute('{hello}'); + my $req = ($mock->requests)[-1]; + is_deeply($req->[0], { + query => '{hello}', + }, 'query is passed to transport'); + + $client->execute('{hello}', {foo => 'bar'}); + $req = ($mock->requests)[-1]; + is_deeply($req->[0], { + query => '{hello}', + variables => {foo => 'bar'}, + }, 'vars passed to transport'); + + $client->execute('{hello}', {foo => 'bar'}, 'opname'); + $req = ($mock->requests)[-1]; + is_deeply($req->[0], { + query => '{hello}', + variables => {foo => 'bar'}, + operationName => 'opname', + }, 'operationName passed to transport'); + + $client->execute('{hello}', {foo => 'bar'}, 'opname', {baz => 'qux'}); + $req = ($mock->requests)[-1]; + is_deeply($req->[1], { + baz => 'qux', + }, 'transport options passed to transport'); + + $client->execute('{hello}', {foo => 'bar'}, {baz => 'qux'}); + $req = ($mock->requests)[-1]; + is_deeply($req->[1], { + baz => 'qux', + }, 'operation name can be ommitted with transport options'); +}; + +subtest 'success response' => sub { + my $mock = MockTransport->new; + my $client = GraphQL::Client->new(transport => $mock); + + $mock->response({ + response => { + data => { + hello => 'Hello world!', + }, + }, + }); + my $resp = $client->execute('{hello}'); + is_deeply($resp, { + data => {hello => 'Hello world!'}, + }, 'response is packed') or diag explain $resp; + { + local $client->{unpack} = 1; + my $resp = $client->execute('{hello}'); + is_deeply($resp, { + hello => 'Hello world!', + }, 'success response is unpacked') or diag explain $resp; + }; + + $mock->response(Future->done({ + response => { + data => { + hello => 'Hello world!', + }, + }, + })); + my $f = $client->execute('{hello}'); + is_deeply($f->get, { + data => {hello => 'Hello world!'}, + }, 'future response is packed') or diag explain $f->get; + { + local $client->{unpack} = 1; + my $f = $client->execute('{hello}'); + is_deeply($f->get, { + hello => 'Hello world!', + }, 'future success response is unpacked') or diag explain $f->get; + }; +}; + +subtest 'response with errors' => sub { + my $mock = MockTransport->new; + my $client = GraphQL::Client->new(transport => $mock); + + $mock->response({ + response => { + data => { + hello => 'Hello world!', + }, + errors => [ + { + message => 'Uh oh', + }, + ], + }, + }); + my $resp = $client->execute('{hello}'); + is_deeply($resp, { + data => {hello => 'Hello world!'}, + errors => [{message => 'Uh oh'}], + }, 'response is packed') or diag explain $resp; + { + local $client->{unpack} = 1; + throws_ok { $client->execute('{hello}') } qr/^Uh oh$/, 'error response thrown'; + my $err = $@; + is($err->error, 'Uh oh', 'error message is from first error'); + is($err->type, 'graphql', 'error type is "graphql"'); + my $resp = $err->{response}; + is_deeply($resp, { + data => {hello => 'Hello world!'}, + errors => [{message => 'Uh oh'}], + }, 'error includes the response') or diag explain $resp; + }; + + $mock->response({ + response => undef, + error => 'Transport error', + details => { + foo => 'bar', + }, + }); + $resp = $client->execute('{hello}'); + is_deeply($resp, { + errors => [{message => 'Transport error'}], + }, 'unpacked response munges error into response') or diag explain $resp; + { + local $client->{unpack} = 1; + throws_ok { $client->execute('{hello}') } qr/^Transport error$/, 'error response thrown'; + my $err = $@; + my $resp = $err->{response}; + is_deeply($resp, { + errors => [{message => 'Transport error'}], + }, 'error includes the constructed response') or diag explain $resp; + }; +}; + +done_testing; diff --git a/t/http.t b/t/http.t new file mode 100755 index 0000000..61a9ccf --- /dev/null +++ b/t/http.t @@ -0,0 +1,217 @@ +#!/usr/bin/env perl + +use warnings; +use strict; + +use FindBin '$Bin'; +use lib "$Bin/lib"; + +use Test::Deep; +use Test::Exception; +use Test::More; + +use Future; +use GraphQL::Client::http; + +HTTP::AnyUA->register_backend(MockUA => '+MockUA'); + +my $URL = 'http://localhost:4000/graphql'; + +subtest 'attributes' => sub { + my $http = GraphQL::Client::http->new; + + is($http->method, 'POST', 'default method is POST'); + is($http->url, undef, 'default url is undefined'); + + $http = GraphQL::Client::http->new(method => 'HEAD', url => $URL); + + is($http->method, 'HEAD', 'method getter returns correctly'); + is($http->url, $URL, 'url getter returns correctly'); +}; + +subtest 'bad arguments to execute' => sub { + my $http = GraphQL::Client::http->new(ua => 'MockUA'); + my $mock = $http->any_ua->backend; + + throws_ok { + $http->execute('blah'); + } qr/^Usage:/, 'first argument must be a hashref'; + + throws_ok { + $http->execute({}); + } qr/^Request must have a query/, 'request must have a query'; + + throws_ok { + $http->execute({query => '{hello}'}); + } qr/^URL must be provided/, 'request must have a URL'; +}; + +subtest 'POST request' => sub { + my $http = GraphQL::Client::http->new(ua => 'MockUA', url => $URL); + my $mock = $http->any_ua->backend; + + my $resp = $http->execute({ + query => '{hello}', + }); + my $req = ($mock->requests)[-1]; + + is($req->[0], 'POST', 'method is POST'); + is($req->[2]{content}, '{"query":"{hello}"}', 'encoded body as JSON'); + is($req->[2]{headers}{'content-type'}, 'application/json', 'set content-type to json'); +}; + +subtest 'GET request' => sub { + my $http = GraphQL::Client::http->new(ua => 'MockUA', url => $URL); + my $mock = $http->any_ua->backend; + + $http->execute({ + query => '{hello}', + }, { + method => 'GET', + }); + my $req = ($mock->requests)[-1]; + + is($req->[0], 'GET', 'method is GET'); + is($req->[1], "$URL?query=%7Bhello%7D", 'encoded query in params'); + is($req->[2]{content}, undef, 'no content'); + + $http->execute({ + query => '{hello}', + }, { + method => 'GET', + url => "$URL?foo=bar", + }); + $req = ($mock->requests)[-1]; + + is($req->[1], "$URL?foo=bar&query=%7Bhello%7D", 'encoded query in params with existing param'); +}; + +subtest 'plain response' => sub { + my $http = GraphQL::Client::http->new(ua => 'MockUA', url => $URL); + my $mock = $http->any_ua->backend; + + $mock->response({ + content => '{"data":{"foo":"bar"}}', + reason => 'OK', + status => 200, + success => 1, + }); + my $r = $http->execute({query => '{hello}'}); + my $expected = { + response => { + data => {foo => 'bar'}, + }, + details => { + http_response => $mock->response, + }, + }; + is_deeply($r, $expected, 'success response') or diag explain $r; + + $mock->response({ + content => '{"data":{"foo":"bar"},"errors":[{"message":"uh oh"}]}', + reason => 'OK', + status => 200, + success => 1, + }); + $r = $http->execute({query => '{hello}'}); + $expected = { + response => { + data => {foo => 'bar'}, + errors => [{message => 'uh oh'}], + }, + details => { + http_response => $mock->response, + }, + }; + is_deeply($r, $expected, 'response with graphql errors') or diag explain $r; + + $mock->response({ + content => 'The agent failed', + reason => 'Internal Exception', + status => 599, + success => '', + }); + my $resp = $http->execute({query => '{hello}'}); + $expected = { + error => 'HTTP transport returned 599 (Internal Exception): The agent failed', + response => undef, + details => { + http_response => $mock->response, + }, + }; + is_deeply($resp, $expected, 'response with http error') or diag explain $resp; + + $mock->response({ + content => 'not json', + reason => 'OK', + status => 200, + success => 1, + }); + $r = $http->execute({query => '{hello}'}); + $expected = { + error => re('^HTTP transport failed to decode response:'), + response => undef, + details => { + http_response => $mock->response, + }, + }; + cmp_deeply($r, $expected, 'response with invalid response') or diag explain $r; +}; + +subtest 'future response' => sub { + my $http = GraphQL::Client::http->new(ua => 'MockUA', url => $URL); + my $mock = $http->any_ua->backend; + + $mock->response(Future->done({ + content => '{"data":{"foo":"bar"}}', + reason => 'OK', + status => 200, + success => 1, + })); + my $f = $http->execute({query => '{hello}'}); + my $expected = { + response => { + data => {foo => 'bar'}, + }, + details => { + http_response => $mock->response->get, + }, + }; + is_deeply($f->get, $expected, 'success response') or diag explain $f->get; + + $mock->response(Future->done({ + content => '{"data":{"foo":"bar"},"errors":[{"message":"uh oh"}]}', + reason => 'OK', + status => 200, + success => 1, + })); + $f = $http->execute({query => '{hello}'}); + $expected = { + response => { + data => {foo => 'bar'}, + errors => [{message => 'uh oh'}], + }, + details => { + http_response => $mock->response->get, + }, + }; + is_deeply($f->get, $expected, 'response with graphql errors') or diag explain $f->get; + + $mock->response(Future->fail({ + content => 'The agent failed', + reason => 'Internal Exception', + status => 599, + success => '', + })); + $expected = { + error => 'HTTP transport returned 599 (Internal Exception): The agent failed', + response => undef, + details => { + http_response => ($mock->response->failure)[0], + }, + }; + $f = $http->execute({query => '{hello}'}); + is_deeply($f->get, $expected, 'response with http error') or diag explain $f->get; +}; + +done_testing; diff --git a/t/https.t b/t/https.t new file mode 100755 index 0000000..c125a50 --- /dev/null +++ b/t/https.t @@ -0,0 +1,13 @@ +#!/usr/bin/env perl + +use warnings; +use strict; + +use Test::More; + +use GraphQL::Client::https; + +isa_ok('GraphQL::Client::https', 'GraphQL::Client::http'); +can_ok('GraphQL::Client::https', qw(new execute)); + +done_testing; diff --git a/t/lib/MockTransport.pm b/t/lib/MockTransport.pm new file mode 100644 index 0000000..7e4159f --- /dev/null +++ b/t/lib/MockTransport.pm @@ -0,0 +1,38 @@ +package MockTransport; +# ABSTRACT: A backend for testing HTTP::AnyUA + +use warnings; +use strict; + +sub new { bless {}, shift } + +=method response + + $response = $backend->response; + $response = $backend->response($response); + +Get and set the response hashref or L that this backend will always respond with. + +=cut + +sub response { @_ == 2 ? $_[0]->{response} = pop : $_[0]->{response} } + +=method requests + + @requests = $backend->requests; + +Get the requests the backend has handled so far. + +=cut + +sub requests { @{$_[0]->{requests} || []} } + +sub execute { + my $self = shift; + + push @{$self->{requests} ||= []}, [@_]; + + return $self->response; +} + +1; diff --git a/t/lib/MockUA.pm b/t/lib/MockUA.pm new file mode 100644 index 0000000..3ee2d70 --- /dev/null +++ b/t/lib/MockUA.pm @@ -0,0 +1,48 @@ +package MockUA; +# ABSTRACT: HTTP::AnyUA backend for testing GraphQL::Client::http + +use warnings; +use strict; + +use Scalar::Util qw(blessed); +use namespace::clean; + +use parent 'HTTP::AnyUA::Backend'; + +=method response + + $response = $backend->response; + $response = $backend->response($response); + +Get and set the response hashref or L that this backend will always respond with. + +=cut + +sub response { @_ == 2 ? $_[0]->{response} = pop : $_[0]->{response} } + +=method requests + + @requests = $backend->requests; + +Get the requests the backend has handled so far. + +=cut + +sub requests { @{$_[0]->{requests} || []} } + +sub response_is_future { blessed($_[0]->{response}) && $_[0]->{response}->isa('Future') } + +sub request { + my $self = shift; + + push @{$self->{requests} ||= []}, [@_]; + + return $self->response || { + success => '', + status => 599, + reason => 'Internal Exception', + content => "No response mocked.\n", + }; +} + +1; diff --git a/xt/author/clean-namespaces.t b/xt/author/clean-namespaces.t new file mode 100644 index 0000000..36387da --- /dev/null +++ b/xt/author/clean-namespaces.t @@ -0,0 +1,11 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::CleanNamespaces 0.006 + +use Test::More 0.94; +use Test::CleanNamespaces 0.15; + +subtest all_namespaces_clean => sub { all_namespaces_clean() }; + +done_testing; diff --git a/xt/author/critic.t b/xt/author/critic.t new file mode 100644 index 0000000..80ccdad --- /dev/null +++ b/xt/author/critic.t @@ -0,0 +1,7 @@ +#!perl + +use strict; +use warnings; + +use Test::Perl::Critic (-profile => "perlcritic.rc") x!! -e "perlcritic.rc"; +all_critic_ok(); diff --git a/xt/author/eol.t b/xt/author/eol.t new file mode 100644 index 0000000..aae18ba --- /dev/null +++ b/xt/author/eol.t @@ -0,0 +1,36 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::EOL 0.19 + +use Test::More 0.88; +use Test::EOL; + +my @files = ( + 'bin/graphql', + 'lib/GraphQL/Client.pm', + 'lib/GraphQL/Client/http.pm', + 'lib/GraphQL/Client/https.pm', + 't/00-compile.t', + 't/00-report-prereqs.dd', + 't/00-report-prereqs.t', + 't/client.t', + 't/http.t', + 't/https.t', + 't/lib/MockTransport.pm', + 't/lib/MockUA.pm', + 'xt/author/clean-namespaces.t', + 'xt/author/critic.t', + 'xt/author/eol.t', + 'xt/author/minimum-version.t', + 'xt/author/no-tabs.t', + 'xt/author/pod-coverage.t', + 'xt/author/pod-syntax.t', + 'xt/author/portability.t', + 'xt/release/consistent-version.t', + 'xt/release/cpan-changes.t', + 'xt/release/distmeta.t' +); + +eol_unix_ok($_, { trailing_whitespace => 1 }) foreach @files; +done_testing; diff --git a/xt/author/minimum-version.t b/xt/author/minimum-version.t new file mode 100644 index 0000000..277e084 --- /dev/null +++ b/xt/author/minimum-version.t @@ -0,0 +1,6 @@ +use strict; +use warnings; + +use Test::More; +use Test::MinimumVersion; +all_minimum_version_ok( qq{5.10.1} ); diff --git a/xt/author/no-tabs.t b/xt/author/no-tabs.t new file mode 100644 index 0000000..f70f55c --- /dev/null +++ b/xt/author/no-tabs.t @@ -0,0 +1,36 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::NoTabs 0.15 + +use Test::More 0.88; +use Test::NoTabs; + +my @files = ( + 'bin/graphql', + 'lib/GraphQL/Client.pm', + 'lib/GraphQL/Client/http.pm', + 'lib/GraphQL/Client/https.pm', + 't/00-compile.t', + 't/00-report-prereqs.dd', + 't/00-report-prereqs.t', + 't/client.t', + 't/http.t', + 't/https.t', + 't/lib/MockTransport.pm', + 't/lib/MockUA.pm', + 'xt/author/clean-namespaces.t', + 'xt/author/critic.t', + 'xt/author/eol.t', + 'xt/author/minimum-version.t', + 'xt/author/no-tabs.t', + 'xt/author/pod-coverage.t', + 'xt/author/pod-syntax.t', + 'xt/author/portability.t', + 'xt/release/consistent-version.t', + 'xt/release/cpan-changes.t', + 'xt/release/distmeta.t' +); + +notabs_ok($_) foreach @files; +done_testing; diff --git a/xt/author/pod-coverage.t b/xt/author/pod-coverage.t new file mode 100644 index 0000000..66b3b64 --- /dev/null +++ b/xt/author/pod-coverage.t @@ -0,0 +1,7 @@ +#!perl +# This file was automatically generated by Dist::Zilla::Plugin::PodCoverageTests. + +use Test::Pod::Coverage 1.08; +use Pod::Coverage::TrustPod; + +all_pod_coverage_ok({ coverage_class => 'Pod::Coverage::TrustPod' }); diff --git a/xt/author/pod-syntax.t b/xt/author/pod-syntax.t new file mode 100644 index 0000000..e563e5d --- /dev/null +++ b/xt/author/pod-syntax.t @@ -0,0 +1,7 @@ +#!perl +# This file was automatically generated by Dist::Zilla::Plugin::PodSyntaxTests. +use strict; use warnings; +use Test::More; +use Test::Pod 1.41; + +all_pod_files_ok(); diff --git a/xt/author/portability.t b/xt/author/portability.t new file mode 100644 index 0000000..c531252 --- /dev/null +++ b/xt/author/portability.t @@ -0,0 +1,10 @@ +use strict; +use warnings; + +use Test::More; + +eval 'use Test::Portability::Files'; +plan skip_all => 'Test::Portability::Files required for testing portability' + if $@; + +run_tests(); diff --git a/xt/release/consistent-version.t b/xt/release/consistent-version.t new file mode 100644 index 0000000..7f200c5 --- /dev/null +++ b/xt/release/consistent-version.t @@ -0,0 +1,10 @@ +use strict; +use warnings; + +use Test::More; + +eval "use Test::ConsistentVersion"; +plan skip_all => "Test::ConsistentVersion required for this test" + if $@; + +Test::ConsistentVersion::check_consistent_versions(); diff --git a/xt/release/cpan-changes.t b/xt/release/cpan-changes.t new file mode 100644 index 0000000..286005a --- /dev/null +++ b/xt/release/cpan-changes.t @@ -0,0 +1,10 @@ +use strict; +use warnings; + +# this test was generated with Dist::Zilla::Plugin::Test::CPAN::Changes 0.012 + +use Test::More 0.96 tests => 1; +use Test::CPAN::Changes; +subtest 'changes_ok' => sub { + changes_file_ok('Changes'); +}; diff --git a/xt/release/distmeta.t b/xt/release/distmeta.t new file mode 100644 index 0000000..c2280dc --- /dev/null +++ b/xt/release/distmeta.t @@ -0,0 +1,6 @@ +#!perl +# This file was automatically generated by Dist::Zilla::Plugin::MetaTests. + +use Test::CPAN::Meta; + +meta_yaml_ok();