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Dancer2::Core::Role::Serializer(3) User Contributed Perl Documentation Dancer2::Core::Role::Serializer(3)


Dancer2::Core::Role::Serializer - Role for Serializer engines


version 1.1.0


Any class that consumes this role will be able to be used as a serializer under Dancer2.

In order to implement this role, the consumer must implement the methods "serialize" and "deserialize", and should define the "content_type" attribute value.



The content type of the object after being serialized. For example, a JSON serializer would have a application/json content type defined.


serialize($content, [\%options])

The serialize method need to be implemented by the consumer. It receives the serializer class object and a reference to the object to be serialized. Should return the object after being serialized, in the content type defined by the "content_type" attribute.

A third optional argument is a hash reference of options to the serializer.

The serialize method must return bytes and therefore has to handle any encoding.

deserialize($content, [\%options])

The inverse method of "serialize". Receives the serializer class object and a string that should be deserialized. The method should return a reference to the deserialized Perl data structure.

A third optional argument is a hash reference of options to the serializer.

The deserialize method receives encoded bytes and must therefore handle any decoding required.


The serializer configuration variable tells Dancer2 which engine to use.

You can change it either in your config.yml file:

    #Set JSON engine
    serializer: "JSON"
    # Prettify JSON output
          pretty: 1

To know which engines are availables please see "Serializers" in Dancer2::Manual


Dancer Core Developers


This software is copyright (c) 2023 by Alexis Sukrieh.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

2023-12-14 perl v5.40.0