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