grape_logging/lib/grape_logging/loggers/response.rb

module GrapeLogging
  module Loggers
    class Response < GrapeLogging::Loggers::Base
      def parameters(request, response)
        if response
          {
            response: serialized_response_body(response)
          }
        else
          {}
        end
      end

      private
      # In some cases, response.body is not parseable by JSON.
      # For example, if you POST on a PUT endpoint, response.body is egal to """".
      # It's strange but it's the Grape behavior...
      def serialized_response_body(response)
        begin
          response.body.map{ |body| JSON.parse(body) }
        rescue => e
          response.body
        end
      end
    end
  end
end