How to managed services and dependencies ...

gistfile1.rb

# adapted from
# http://adamniedzielski.github.io/blog/2014/11/25/my-take-on-services-in-rails/

class CreateUserAccount
  attr_reader :user

  def initialize(send_email_service: SendEmail.new, generate_token_service: GenerateToken.new)
    @send_email_service = send_email_service
    @generate_token_service = generate_token_service
  end

  def call
    save_user
    send_email
    generate_token
  end

  private

  def save_user
    # save user
    # set user attr_reader
  end

  def send_email
    @send_email_service.call(user)
  end

  def generate_token
    @generate_token_service.call(user)
  end
end

class CreateUserAccount
  class SendEmail
    def call(user)
      # send email
    end
  end
end

class CreateUserAccount
  class GenerateToken
    def initialize token_parser: TokenParser.new
      @token_parser = token_parser
    end

    def call(user)
      # do some logic
      parse_token
    end

    private

    def parse_token
      @token_parser.call
    end
  end
end

class CreateUserAccount
  class TokenParser
    def call
      # generate token for user
    end
  end
end

CreateUserAccount.new(generate_token_service: CreateUserAccount::GenerateToken.new(token_parser: CreateUserAccount::TokenParser.new)).call

Hello. Thanks for share your code.

I have one question: where you pass user params?

I think you will pass in CreateUserAccount#call(user_params), but I'm not sure.

Thanks in advance!

@betosalvador - you pass your params through the .new method. CreateUserAccount.new(user_params).call But make sure you are using the keywords.