sidekiq_jsoner.rb

  class Sidekiq::Logger::Formatters::Jsoner < Sidekiq::Logger::Formatters::Base
    def call(severity, time, program_name, message)
      hash = {
        application: "prog-sidekiq",
        time: time.utc.to_i,
        level: severity,
        tid: tid,
        message: message
      }
      c = ctx
      hash["ctx"] = c unless c.empty?
      ::JSON.generate(hash) + "\n"
    end
  end
  Sidekiq.log_formatter = Sidekiq::Logger::Formatters::Jsoner.new