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.\" ========================================================================
.\"
.IX Title "Scrappy::Session 3pm"
.TH Scrappy::Session 3pm "2021-01-07" "perl v5.32.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
Scrappy::Session \- Scrappy Scraper Session Handling
.SH "VERSION"
.IX Header "VERSION"
version 0.94112090
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\&    #!/usr/bin/perl
\&    use Scrappy::Session;
\&
\&    my  $session = Scrappy::Session\->new;
\&    
\&        \-f \*(Aqscraper.sess\*(Aq ?
\&        $session\->load(\*(Aqscraper.sess\*(Aq);
\&        $session\->write(\*(Aqscraper.sess\*(Aq);
\&        
\&        $session\->stash(\*(Aqfoo\*(Aq => \*(Aqbar\*(Aq);
\&        $session\->stash(\*(Aqabc\*(Aq => [(\*(Aqa\*(Aq..\*(Aqz\*(Aq)]);
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
Scrappy::Session provides YAML-Based session file handling for saving recorded
data across multiple execution using the Scrappy framework.
.SS "\s-1ATTRIBUTES\s0"
.IX Subsection "ATTRIBUTES"
The following is a list of object attributes available with every Scrappy::Session
instance.
.PP
\fIauto_save\fR
.IX Subsection "auto_save"
.PP
The auto_save attribute is a boolean that determines whether stash data is
automatically saved to the session file on update.
.PP
.Vb 1
\&    my  $session = Scrappy::Session\->new;
\&        
\&        $session\->load(\*(Aqscraper.sess\*(Aq);
\&        $session\->stash(\*(Aqfoo\*(Aq => \*(Aqbar\*(Aq);
\&        
\&        # turn auto\-saving off
\&        $session\->auto_save(0);
\&        $session\->stash(\*(Aqfoo\*(Aq => \*(Aqbar\*(Aq);
\&        $session\->write; # explicit write
.Ve
.PP
\fIfile\fR
.IX Subsection "file"
.PP
The file attribute gets/sets the filename of the current session file.
.PP
.Vb 1
\&    my  $session = Scrappy::Session\->new;
\&        
\&        $session\->load(\*(Aqscraper.sess\*(Aq);
\&        $session\->write(\*(Aqscraper.sess.bak\*(Aq);
\&        $session\->file(\*(Aqscraper.sess\*(Aq);
.Ve
.SH "METHODS"
.IX Header "METHODS"
.SS "load"
.IX Subsection "load"
The load method is used to read-in a session file, it returns its data in the
structure it was saved-in.
.PP
.Vb 2
\&    my  $session = Scrappy::Session\->new;
\&    my  $data = $session\->load(\*(Aqscraper.sess\*(Aq);
.Ve
.SS "stash"
.IX Subsection "stash"
The stash method accesses the stash object which is used to store data to be
written to the session file.
.PP
.Vb 2
\&    my  $session = Scrappy::Session\->new;
\&        $session\->load(\*(Aqscraper.sess\*(Aq);
\&        
\&        $session\->stash(\*(Aqfoo\*(Aq => \*(Aqbar\*(Aq);
\&        $session\->stash(\*(Aqabc\*(Aq => [(\*(Aqa\*(Aq..\*(Aqz\*(Aq)]);
\&        $session\->stash\->{123} = [(1..9)];
.Ve
.SS "write"
.IX Subsection "write"
The write method is used to write-out a session file, it saves the data stored
in the session stash and it returns the data written upon completion.
.PP
.Vb 1
\&    my  $session = Scrappy::Session\->new;
\&    
\&        $session\->stash(\*(Aqfoo\*(Aq => \*(Aqbar\*(Aq);
\&        $session\->stash(\*(Aqabc\*(Aq => [(\*(Aqa\*(Aq..\*(Aqz\*(Aq)]);
\&        $session\->stash\->{123} = [(1..9)];
\&    
\&    my  $data = $session\->write(\*(Aqscraper.sess\*(Aq);
.Ve
.SH "AUTHOR"
.IX Header "AUTHOR"
Al Newkirk <awncorp@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2010 by awncorp.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.