ActiveModel::Serializer not being called when rendering json?

json serialization ruby-on-rails-4 active-model-serializers

I had a similar problem on Rails3 and I had to add this line into the app initializer folder

ActionController::API.send(:include, ActionController::Serialization)

Check if you have to do something similar with yours like

ActionController:: Metal.send(:include, ActionController::Serialization)

json serialization ruby-on-rails-4 active-model-serializers

include ActionController::Serialization

in ApplicationController

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