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.\" ========================================================================
.\"
.IX Title "Dancer2::Core::Role::Headers 3pm"
.TH Dancer2::Core::Role::Headers 3pm "2014-10-15" "perl v5.20.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Dancer2::Core::Role::Headers \- Role for handling headers
.SH "VERSION"
.IX Header "VERSION"
version 0.152000
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
When a class consumes this role, it gets a \f(CW\*(C`headers\*(C'\fR attribute and all the
helper methods to manipulate it.
.PP
This logic is contained in this role in order to reuse the code between
Dancer2::Core::Response and Dancer2::Core::Request objects.
.SH "ATTRIBUTES"
.IX Header "ATTRIBUTES"
.SS "headers"
.IX Subsection "headers"
The attribute that store the headers in a HTTP::Headers object.
.PP
That attribute coerces from ArrayRef and defaults to an empty HTTP::Headers
instance.
.SH "METHODS"
.IX Header "METHODS"
.SS "header($name)"
.IX Subsection "header($name)"
Return the value of the given header, if present. If the header has multiple
values, returns the list of values if called in list context, the first one
if in scalar context.
.SS "push_header"
.IX Subsection "push_header"
Add the header no matter if it already exists or not.
.PP
.Vb 1
\&    $self\->push_header( \*(AqX\-Wing\*(Aq => \*(Aq1\*(Aq );
.Ve
.PP
It can also be called with multiple values to add many times the same header
with different values:
.PP
.Vb 1
\&    $self\->push_header( \*(AqX\-Wing\*(Aq => 1, 2, 3 );
.Ve
.SS "headers_to_array"
.IX Subsection "headers_to_array"
Convert the \f(CW\*(C`headers\*(C'\fR attribute to an ArrayRef.
.SH "AUTHOR"
.IX Header "AUTHOR"
Dancer Core Developers
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2014 by Alexis Sukrieh.
.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.