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README.md

Curryable

## What is a command object?

An object (noun) that acts as a container for a function (verb).

Design goals

  • Objects should be immutable
  • Object should act like a function
  • Arguments to the object can be curried
  • Objects should be inspectable. Inspection should reveal
    • the class
    • which arguments have been curried, and their values
class SignUpUser
  def initialize(user_creator:, attributes:, email_api:, crm_api:)
    @user_creator = user_creator
    @attributes = attributes
    @email_api = email_api
    @crm_api = crm_api
  end

  attr_reader :user_creator, :attributes, :email_api, :crm_api
  private     :user_creator, :attributes, :email_api, :crm_api

  def call
    create_user_record
    send_confirmation_email
    add_user_to_crm
  end
end

signup_service = Curryable.new(SignUpUser).call(
  user_creator: User,
  email_api: EmailAPI.new(EMAIL_AUTH_TOKEN),
  crm_api: CRMAPI.new(CRM_AUTH_TOKEN),
)

signup_service.inspect
# => #<Curryable<SignUpUser>:0x839fa96b9467e0 user_creator:User, email_api:#<EmailAPI>, crm_api:#<CRMAPI>, attributes:>

signup_service.call(
  attributes: user_attrs,
)

TODO

  • Contributing guide
  • List of features we would actively encourage
  • Code of conduct
  • Github badges
  • Travis
  • Code climate
  • Define supported Ruby versions and implementations
  • Test against all of them