class Doorkeeper::Request::RefreshToken

def self.build(server)
  new(server.current_refresh_token, server.credentials, server)
end

def authorize
  request.authorize
end

def initialize(refresh_token, credentials, server)
  @refresh_token, @credentials, @server = refresh_token, credentials, server
end

def request
  @request ||= OAuth::RefreshTokenRequest.new(Doorkeeper.configuration, refresh_token, credentials, server.parameters)
end