app/serializers/audio_serializer.rb
class AudioSerializer < ActiveModel::Serializer
attributes :url,
:size,
:duration,
:codec,
:bitrate,
:sample_rate,
:status,
:analysed_at,
:error_message,
:error_count
def status
object.status.to_s
end
def analysed_at
object.analysed_at&.to_formatted_s
end
end