ruby on rails - Cache warming with RABL for JSON templates -


OK, this post is a bit of a word before reaching the actual question, so the compressed version basically deals with caching RABL templates Rabl.render vs. API calls, cache-keys are not the same in the generated cache.

Kashmir, now wind-up ..

When I have Rab Should I expect to match cash-keys when using render? To improve the reuse of the underlying objects in a Rail API API server archive on Heroku, I have done very well with RABL using Russian doll caching. However, I still go with the archive cache, when the user is generated for the first time on request, this is a burden on experience (like 1 + second API call).

... API / v1 / activities / 26600: 

  read the cache: rabl / activity / 26600 -20140423170223588554000 // hash / d30440d18014c72014a05319af0626f7 cash generated: rabl / activity / 26600-20140423170223588554000 // hash / d30440d18014c72014a05319af0626f7 cache type: rabl / activity / 26600-20140423170223588554000 // hash / d30440d18014c72014a05319af0626f7   
  Calling for the same object ... api / v1 / activities (after the call above) I get the desired cash hit:   
  Reading cache: rabl / activity / 26600-20140423170223588554000 // hash / d30440d18014c72014a05319af0626f7 cache fetch_hit: rabl / activity / 26600-20140423170223588554000 // hash / d304 40d18014c72014a05319af0626f7 This works great! The next step is to avoid having any API call spending to generate cash before. 
 That's why I'm pursuing cash-warming techniques to generate collections before the user can reach them. A suggestion is using the  wget  API as a way to kill straight (see). But this adds a load on the Hacaku Web Dynis, so I want to do background cache warming through sidekick workers.  
 RABL provides a way to provide a template directly from the code () which definitely looks like the correct approach. This is the use case. Therefore, I intend to use an RABL engine To call (for example - a user login event).  
 So for the above API example, I call the following Rail Console and expect cash hits.  
  irb (main): 002: 0> @activity = Activity.find (26600) irb (main): 003: 0> Rabl.render (@activity, 'api / v2 / activity / show_no_root' ,: view_path = & gt; 'app / view' ,: format = & gt ;: json) Read the cache: rabl / activity / 26600-20140423170223588554000 // Hash cache generated: rabl / activity / 26600-20140423170223588554000 // hash cache type: rabl / activity / 26600-20140423170223588554000 // hash   
 Unexpectedly, I could not find a cache hit, but It is clear that cache-keys are not the same as the previous hash sign is missing. I am not sure why the cash-key will be different in this case. I'm not leaving a way to heat the cache for RABL templates.  
 UPDATE  
 The template hash that turns the hash into the previous cache key.  
  Cache digest for API / v1 / activities / _show. Rabl: d30440d18014c72014a05319af0626f7   
 Although it tells me the source of that hash, it is still unclear why its use directly from calling  Rabl :: renderer  does not happen. Due to the missing template digest hash in the cache, I was not able to use Rabl ::: key. Although by creating a sidekick worker below, I can heat the cache by calling AP as a background process, which works well.  
  class CacheWarmApi includes Sidekiq :: Worker sidekiq_options: queue = & gt; : Warmers def performance (url_helper, args, params = {}, method = 'get') if method == 'get' session = ActionDispatch :: integration :: session.new (Rails.application) session.get (session.send For example:  
  CacheWarmApi.perform_async (: api_v2_expensiveapi_url, args_array, params_hash)   
 For example: / Code>  
 I think it is too heavy of a solution, and still feels that there is a solution with Raval :: render.

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