fortnox

# /app/models/customer_rep.rb
class CustomerRep
 attr_reader :name, :customer_id
 def initialize( obj )
   @name = obj.name
   @customer_id = obj.id
 end
end

# /app/models/customer.rb
class Customer < AR

  # jadajadajada

  after_save :save_fortnox

  protected
  def save_fortnox
    FortnoxAPI::Customer.update( CustomerRep.new(self) )
  end
end

kanske:

API::Fortnox.update( id, props )

Fortnox::API.update(id, CustomerRep.new(self))

API::Fortnox.update( props )

attributes.merge(:root => :invoice)