app/serializers/re3data_serializer.rb
class Re3dataSerializer
include JSONAPI::Serializer
set_key_transform :camel_lower
set_type :re3data
attributes :re3data_id, :repositoryName, :repositoryUrl, :repositoryContacts, :description, :repositoryLanguages, :certificates, :types,
:additionalNames, :subjects, :contentTypes, :providerTypes,
:keywords, :institutions, :dataAccesses, :dataUploads, :dataUploadLicenses, :pidSystems,
:apis, :pidSystems, :software, :startDate, :endDate, :created, :updated
attribute :re3data_id do |object|
"r3d#{object.identifier["re3data"]}"
end
attribute :subjects do |object|
object.subjects.sort_by { |subject| subject["text"] }
end
attribute :created do |object|
object.created.strftime("%FT%TZ")
end
attribute :updated do |object|
object.updated.strftime("%FT%TZ")
end
end