module Sidetree
  module OP
    # Update operation class.
    # https://identity.foundation/sidetree/spec/#update
    class Update < Updatable
      # Parse update operation data from json string
      # @param [String] update_data update operation data(json string).
      # @return [Sidetree::OP::Update]
      # @raise [Sidetree::Error]
      def self.from_json(update_data)
        parse_json(update_data, Sidetree::OP::Type::UPDATE)
      end

      def type
        Sidetree::OP::Type::UPDATE
      end
    end
  end
end