app/controller/concerns files - Simple Rails API server - TDD

response and exception_handler .rb

#app/controller/concerns/response.rb
module Response
  def json_response(object, status = :ok)
    render json: object, status: status
  end
end

#app/controller/concerns/exception_handler.rb
module ExceptionHandler
  # provides the more graceful `included` method
  extend ActiveSupport::Concern

  included do
    rescue_from ActiveRecord::RecordNotFound do |e|
      json_response({ message: e.message }, :not_found)
    end

    rescue_from ActiveRecord::RecordInvalid do |e|
      json_response({ message: e.message }, :unprocessable_entity)
    end
  end
end