dynamic_singleton_methods

🔒 Securing dynamic singletons with define_singleton_method

Use define_singleton_method to add methods to individual objects safely, encapsulating behavior without modifying classes or using eval.

api_client = Object.new
api_client.define_singleton_method(:fetch_data) do |endpoint|
  HTTP.get("https://api.example.com/#{endpoint}")
end

api_client.fetch_data('users')