Code sketch for yodlee providers synchronization

yodlee_providers_sync.rb

# lib/yodlee/api/v1/provider.rb
class Yodlee::Api::V1::Provider < Yodlee::Api::V1::Base
  # [ {id: 1, lastModified: 2013-01-02T00:39:52Z}, {id: 3, lastModified: 2013-01-02T00:39:52Z}, {id: 4, lastModified: 2013-01-02T00:39:52Z} ]
  def list_all
    caller_result = for_session.list_providers

    list = []

    caller_result.provider.map do |provider|
      partial_provider = {}
      fields.each { |f| partial_provider[f] = provider[f] }

      list << partial_provider
    end

    list
  end

  def get_details(provider_id)
    caller_result = for_session.get_provider_details(provider_id)
    caller_result['provider'].first
  end
end


# app/services/synchronize_yodlee_providers.rb
class SynchronizeYodleeProviders
  class << self
    def call!
      providers = Yodlee::Api::V1::Provider.new.list

      existing_providers = YodleeProvider.pluck(:yodlee_id, :last_modified)

      #TODO: get updated providers
      providers_to_update= providers - existing_providers

      providers_to_update.each do |provider|
        CreateOrUpdateYodleeProvider.call!(provider.id)
      end
    end
  end
end


# app/services/update_yodlee_provider
class CreateOrUpdateYodleeProvider
  class << self
    def call!(provider_id)
      provider_hash = Yodlee::Api::V1::Provider.new.get_details(provider_id: provider_id)
      yodlee_provider = YodleeProvider.find_or_initialize_by(yodlee_id: provider_id)

      yodlee_provider.update_from_camelized_hash!(provider_hash)
    end
  end
end

# app/models/yodlee_provider.rb
class YodleeProvider < ActiveRecord::Base
  def update_from_camelized_hash!(camelized_hash)
    #TODO: Implement deserialization

    save!
  end
end