app/controllers/user_callouts_controller.rb


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class UserCalloutsController < ApplicationController
  def create
    if check_feature_name && ensure_callout
      respond_to do |format|
        format.json { head :ok }
      end
    else
      respond_to do |format|
        format.json { head :bad_request }
      end
    end
  end

  private

  def check_feature_name
    UserCallout.feature_names.keys.include?(callout_param)
  end

  def ensure_callout
    current_user.callouts.find_or_create_by(feature_name: callout_param)
  end

  def callout_param
    params.require(:feature_name)
  end
end