if defined?(Sidekiq)
  module Sidekiq
    module Middleware
      module Server
        class UniqueJobs
          def call(*args)
            yield
          ensure
            json = Sidekiq.dump_json(args[1])
            hash = Digest::MD5.hexdigest(json)
            Sidekiq.redis {|conn| conn.del(hash) }
          end
        end
      end
    end
  end
end