2011-09-08-alternative-tornado-logging.py

    def log_request(self, handler):

        log = logging.getLogger('demo')
        log.setLevel(logging.DEBUG)
        log.addHandler(MongoHandler.to(db='mongolog', collection='log', host='db.example.com'))

        if handler.get_status() < 400:
            log_method = log.info
        elif handler.get_status() < 500:
            log_method = log.warn
        else:
            log_method = log.error

        request_time = 1000.0 * handler.request.request_time()
        log_message = '%d %s %.2fms' % (handler.get_status(), handler._request_summary(), request_time)
        log_method(log_message)