Getting started

Conventions

• All services are subclasses of Servactory::Base and are located in the app/services directory. It is common practice to create and inherit from ApplicationService::Base, which is a subclass of Servactory::Base.
• Name services by what they do, not by what they accept. Use verbs in names. For example, UsersService::Create instead of UsersService::Creation.

Installation

Add this to Gemfile:

gem "servactory"

And execute:

bundle install

Preparation

As a first step, it is recommended to prepare the base class for further inheritance.

ApplicationService::Errors

app/services/application_service/errors.rb

module ApplicationService
  module Errors
    class InputError < Servactory::Errors::InputError; end
    class OutputError < Servactory::Errors::OutputError; end
    class InternalError < Servactory::Errors::InternalError; end

    class Failure < Servactory::Errors::Failure; end
  end
end

ApplicationService::Base

app/services/application_service/base.rb

module ApplicationService
  class Base < Servactory::Base
    configuration do
      input_error_class ApplicationService::Errors::InputError
      output_error_class ApplicationService::Errors::OutputError
      internal_error_class ApplicationService::Errors::InternalError

      failure_class ApplicationService::Errors::Failure
    end
  end
end