NAME

Stash::REST - Add Requests into stash. Then, Extends with Class::Trigger!

SYNOPSIS

    use Stash::REST;
    use JSON;

    $obj = Stash::REST->new(
        do_request => sub {
            my $req = shift;

            # in case of testings

            my ($res, $c) = ctx_request($req);
            return $res;

            # in case of using LWP
            $req->uri( 'http://your-api.com' );
            return LWP::UserAgent->new->request($req);

        },
        decode_response => sub {
            my $res = shift;
            return decode_json($res->content);
        }
    );

    # you can write/read stash anytime
    $obj->stash('foo') # returns undef

    $obj->stash->{'foo'} = 3;

    $obj->stash('foo') # returns 3


    $obj->rest_post(
        '/zuzus',
        name  => 'add zuzu', # you can send fields for your custom on extensions.
        list  => 1,
        stash => 'easyname',
        prepare_request => sub {
            is(ref $_[0], 'HTTP::Request', 'HTTP::Request recived on prepare_request');
            $run++;
        },
        [ name => 'foo', ]
    );
    is($run, '2', '2 executions of prepare_request');

    $obj->rest_put(
        $obj->stash('easyname.url'),
        name => 'update zuzu',
        [ new_option => 'new value' ]
    );

    $obj->rest_reload('easyname');

    $obj->stash_ctx(
        'easyname.get',
        sub {
            my ($me) = @_;

            is( $me->{name}, 'AAAAAAAAA', 'name updated!' );
        }
    );

    # reload expecting a different code.
    $obj->rest_reload( 'easyname', code => 404 );

    $obj->rest_reload_list('easyname');

    # HEAD return $res instead of parsed response
    my $res = $obj->rest_head(
        $obj->stash('easyname.url'),
    );
    is($res->headers->header('foo'), '1', 'header is present');

    $obj->stash->{'easyname'} # parsed response for POST /zuzus
    $obj->stash->{'easyname.id'} # HashRef->{id} if exists, from POST response.
    $obj->stash->{'easyname.get'} # parsed response of GET /zuzus/1 (from Location)
    $obj->stash->{'easyname.url'} # 'zuzus/1'

    if list => 1 is passed:
    $obj->stash->{'easyname.list'} # parsed response for GET '/zuzus'
    $obj->stash->{'easyname.list-url'} # '/zuzus'


    # this
    $obj->stash_ctx(
        'easyname.get',
        sub {
            my ($me) = @_;
        }
    );

    # equivalent to
    my $me = $c->stash->{'easyname.get'};

    # can be useful for testing/context isolation
    $obj->stash_ctx(
        'easyname.list',
        sub {
            my ($me) = @_;

            ok( $me = delete $me->{zuzus}, 'zuzu list exists' );

            is( @$me, 1, '1 zuzu' );

            is( $me->[0]{name}, 'foo', 'listing ok' );
        }
    );


    $obj->rest_delete( $obj->stash('easyname.url') );

DESCRIPTION

Stash::REST helps you use HTTP::Request::Common to create requests and put responses into a stash for further user.

The main objective is to encapsulate the most used HTTP methods and expected response codes for future extensions and analysis by other modules, using the callbacks Class::Trigger.

METHODS

new

    Stash::REST->new(
        do_request => sub {
            ...
        },
        decode_response => sub {
            ...
        }
    );

rest_get

Same as:

    $self->rest_post(
        $url,
        code => 200,
        %conf,
        method => 'GET',
        $data
    );

rest_put

Same as:

    $self->rest_post(
        $url,
        code => ( exists $conf{is_fail} ? 400 : 202 ),
        %conf,
        method => 'PUT',
        $data
    );

rest_head

Same as:

    $self->rest_post(
        $url,
        code => 200,
        %conf,
        method => 'HEAD',
        $data
    );

rest_delete

Same as:

    $self->rest_post(
        $url,
        code => 204,
        %conf,
        method => 'DELETE',
        $data
    );

_capture_args

This is a private method. It parse and validate params for rest_post and above methods.

    my ($self, $url, $data, %conf) = &_capture_args(@_);

    So, @_ must have a items like this:

        $self, # (required) self object
        $url,  # (required) a string. If ARRAY $url will return a join '/', @$url
        %conf, # (optional) configuration hash (AKA list). Odd number will cause problems.
        $data  # (optional) ArrayRef, send on body as application/x-www-form-urlencoded data

    # $data can be also sent as $conf{data} = []

rest_post

This is the main method, and accept some options on %conf.

Defaults options

is_fail => 0,

This test if $res->is_success must be true or false. Die with confess if not archived.

code => is_fail ? 400 : 201,

This test if $res->code equivalent to expected. Die with confess if not archived.

Optional options:

stash => 'foobar'

Load parsed response on $obj-stash->{foobar} > and some others fields

$obj-stash->{foobar.id} > if response code is 201 and parsed response contains ->{id} $obj-stash->{foobar.url} > if response code is 201 and header contains Location (confess if missed)

list => 1,

If true, Location header will be looked and a GET on Location will occur and parsed data will be stashed on $obj-stash->{foobar.list} > and list-url on $obj-stash->{foobar.list-url} >

stash_ctx

    $obj->stash_ctx(
        'easyname.get',
        sub {
            my ($me) = @_;
        }
    );


    Get an stash-name and run a CodeRef with the stash as first @_

rest_reload

Reload the GET easyname.url and put on stash.

    $obj->rest_reload( 'easyname' );

    # reload expecting a different code.
    $obj->rest_reload( 'easyname', code => 404 );

When response is 404, some stash{easyname} is cleared.

rest_reload_list

Reload the GET easyname.list-url and put on stash.

    $obj->rest_reload_list('easyname');

This response code must be 200 OK.

stash

Copy from old Catalyst.pm, but $t->stash('foo') = $t->stash->{'foo'}

Returns a hashref to the stash, which may be used to store data and pass it between components during a test. You can also set hash keys by passing arguments. Unlike catalyst, it's never cleared, so, it lasts until object this destroy.

    $t->stash->{foo} = $bar;
    $t->stash( { moose => 'majestic', qux => 0 } );
    $t->stash( bar => 1, gorch => 2 ); # equivalent to passing a hashref

Tests Coverage

I'm always trying to improve those numbers. Improve branch number is a very time-consuming task. There is a room for test all checking and defaults on tests.

    ---------------------------- ------ ------ ------ ------ ------ ------ ------
    File                           stmt   bran   cond    sub    pod   time  total
    ---------------------------- ------ ------ ------ ------ ------ ------ ------
    blib/lib/Stash/REST.pm         94.9   73.1   81.4  100.0    0.0  100.0   84.6
    Total                          94.9   73.1   81.4  100.0    0.0  100.0   84.6
    ---------------------------- ------ ------ ------ ------ ------ ------ ------

Class::Trigger names

Updated @ Stash-REST 0.04

    $ grep  '$self->call_trigger' lib/Stash/REST.pm  | perl -ne '$_ =~ s/^\s+//; $_ =~ s/self-/self0_04-/; print' | sort | uniq

    Trigger / variables:

    $self0_04->call_trigger('after_stash_ctx', $staname, \@ret);
    $self0_04->call_trigger('before_rest_delete', \$url, \$data, \%conf);
    $self0_04->call_trigger('before_rest_get', \$url, \$data, \%conf);
    $self0_04->call_trigger('before_rest_head', \$url, \$data, \%conf);
    $self0_04->call_trigger('before_rest_post', \$url, \$data, \%conf);
    $self0_04->call_trigger('before_rest_put', \$url, \$data, \%conf);
    $self0_04->call_trigger('before_stash_ctx', $staname);
    $self0_04->call_trigger('item_loaded', $stashkey, \%conf);
    $self0_04->call_trigger('list_loaded', $stashkey, \%conf);
    $self0_04->call_trigger('process_request', \$req, \%conf);
    $self0_04->call_trigger('process_response', \$req, \$res, \%conf);
    $self0_04->call_trigger('process_response_success', \$req, \$res, \%conf);
    $self0_04->call_trigger('response_decoded', \$req, \$res, \$obj, \%conf);
    $self0_04->call_trigger('stash_added', $stashkey, \%conf);
    $self0_04->call_trigger('stash_removed', $stashkey, \%conf);

Updated @ Stash-REST 0.03

    $ grep  '$self->call_trigger' lib/Stash/REST.pm  | perl -ne '$_ =~ s/^\s+//; $_ =~ s/self-/self0_03-/; print' | sort | uniq

    Trigger / variables:

    $self0_03->call_trigger('after_stash_ctx', $staname, \@ret);
    $self0_03->call_trigger('before_rest_delete', \$url, \$data, \%conf);
    $self0_03->call_trigger('before_rest_get', \$url, \$data, \%conf);
    $self0_03->call_trigger('before_rest_head', \$url, \$data, \%conf);
    $self0_03->call_trigger('before_rest_post', \$url, \$data, \%conf);
    $self0_03->call_trigger('before_rest_put', \$url, \$data, \%conf);
    $self0_03->call_trigger('before_stash_ctx', $staname);
    $self0_03->call_trigger('item_loaded', $stashkey, \%conf);
    $self0_03->call_trigger('list_loaded', $stashkey, \%conf);
    $self0_03->call_trigger('process_request', \$req, \%conf);
    $self0_03->call_trigger('process_response', \$req, \$res, \%conf);
    $self0_03->call_trigger('response_decoded', \$req, \$res, \$obj, \%conf);
    $self0_03->call_trigger('stash_added', $stashkey, \%conf);
    $self0_03->call_trigger('stash_removed', $stashkey, \%conf);

AUTHOR

Renato CRON <rentocron@cpan.org>

COPYRIGHT

Copyright 2015- Renato CRON

Thanks to http://eokoe.com

LICENSE

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

SEE ALSO

Stash::REST::TestMore, Class::Trigger