Caching in Rails

[Nicholas Henry]

Are there any examples of caching in Rails using ROAR? Specifically, I'm looking for something similar to what active_model_serializers[1] provides/provided.

[1] https://github.com/rails-api/active_model_serializers#caching

Thank you,

Nicholas

[Nick Sutterer]

You mean client-side caching? It should be actually really simple. Could you explain what exactly you're after? Is that on client or server-side?

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[Nicholas Henry]

Hello Nick,

I'm after the same sort of caching you get with a server-side template. Basically, able to cache the generated JSON based on a cache key or an expiration date. From active_model_serializers, what is the equivalent in ROAR for this:

class PostSerializer < ActiveModel::Serializer
  cached  # enables caching for this serializer

  attributes :title, :body

  def cache_key
    [object, scope]
  end
end

Other references:

http://robots.thoughtbot.com/fast-json-apis-in-rails-with-key-based-caches-and

Thank you for your help,

Nicholas

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[Glenn Goodrich]

Any answer on this?

[Nick Sutterer]

This is a feature relatively simple to implement and will be done exactly the way we do it in Cells: https://github.com/apotonick/cells#caching

I am contemplating something like

```ruby

module SongRepresenter

  include ..

  caches do [id, title] end

```

In roar-rails, this will go directly to the Rails' cache store.

We don't need this feature in our products right now, so if anyone is keen on sponsoring this I'll hack it in the next days. https://pledgie.com/campaigns/16068

Cheers,

Nick