Rails.cache.write('temp',Date.today,:expires_in => 60.seconds)

config.action_controller.perform_caching = true

config.cache_store = :memory_store

if expires_in > 0 && !options[:raw]
    # Set the memcache expire a few minutes in the future to support race condition ttls on read
    expires_in += 5.minutes
end

output_json = Rails.cache.fetch('temp',expires_in: 1.minute,race_condition_ttl:3) do
  my_expansive_operation().to_json
end