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# frozen_string_literal: true
module ActivityPub
# Serializer for the `Object` ActivityStreams model.
# Reference: https://www.w3.org/TR/activitystreams-core/#object
class ObjectSerializer < ::BaseSerializer
MissingIdentifierError = Class.new(StandardError)
MissingTypeError = Class.new(StandardError)
def represent(resource, opts = {}, entity_class = nil)
serialized = super(resource, opts, entity_class)
response = wrap(serialized, opts)
validate_response(HashWithIndifferentAccess.new(response), opts)
end
private
def wrap(serialized, _opts)
{ :@context => "https://www.w3.org/ns/activitystreams" }.merge(serialized)
end
def validate_response(response, _opts)
unless response[:id].present?
raise MissingIdentifierError, "The serializer does not provide the mandatory 'id' field."
end
unless response[:type].present?
raise MissingTypeError, "The serializer does not provide the mandatory 'type' field."
end
response
end
end
end
|
