Andrew Max

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Posted in How to run rails initialization code that relies on all classes being loaded?

I have some crucial application setup code that I want to run once on application spinup that requires iterating through classes of a certain type and calling a gem specific initialize method on them.

According to https://stackoverflow.com/questions/56402093/how-can-i-preload-concerns-in-a-rails-initializer-using-rails-6-zeitwerk I should not autoload constants in initializers.

So how can I run code once on application load after classes are loaded

I tried with no luck: 

    config.after_initialize do
      # do stuff
    end