Extracting information from services, how does it work?

Question

Ruby on Rails

Hello. I want to make it so that a person enters into the field (in my application) the id of a book with goodreads and after saving, create a book in my database with a title and information, such as how many pages. Goodreads has a gem https://github.com/sosedoff/goodreads
I would like to know which way to dig in order to implement this? It after all by means of helpers is implemented?

Answer 1

No, helpers are needed only to simplify layout in views.
We connect the gem, create a minimal service:

#app/services/goodreads_service.rb
class GoodreadsService
  API_KEY = 'api-ключ' (или брать из ENV или использовать rails_config)
  API_SECRET = 'секрет'

  def initialize
    Goodreads.new(api_key: API_KEY, api_secret: API_SECRET)
  end
end

Then anywhere in the controller or model (preferably) we can call GoodreadsService.new.book('31337') and get the book by id.