NodeJS中的Google App Engine登录

Question

I can't find much on logging onto Google App Engine using Flexible environment and NodeJS.

As the docs says , one is able to write its own logging messages using the standard stdout and stderr . But this is simple logging, and I would like to have something a little bit more refined.

In particular, the Log Views in Google Cloud Platform Console allows the user to filter logs on their severity levels:

1. Critical
2. Error
3. Warning
4. Info
5. Debug
6. Any log level

I would like to find a way to use those levels in my applications, so that I can read logs much better.

By default, if I print to stdout using console.log() the logs will only appear if I filter by "Any log level", and I have no option to select a severity level.

I have tried to use winston-gae as reported on the docs , but without any success. Maybe I have configured it wrong?

To be more clear, I would like to be able to do something like this in Python ( source ):

import logging
import webapp2
class MainPage(webapp2.RequestHandler):
    def get(self):
        logging.debug('This is a debug message')
        logging.info('This is an info message')
        logging.warning('This is a warning message')
        logging.error('This is an error message')
        logging.critical('This is a critical message')
        self.response.out.write('Logging example.')

app = webapp2.WSGIApplication([
    ('/', MainPage)
], debug=True)

Answer 1

我建议您查看Google Cloud Node.js客户端库，它可以帮助您调用Stackdriver Logging API以便记录结构化日志条目： https : //github.com/GoogleCloudPlatform/google-cloud-node#google- stackdriver-logging-beta