How can I set up logging in my Flask app using logging configuration?

How can I set up logging in my Flask app using logging configuration?

You can set up logging in your Flask app by creating a logging configuration file or using a dictionary to define your logging settings. Would you like a code example?

Yes, please provide a code example for a basic logging configuration.

Here's a simple example:

import logging
from flask import Flask

app = Flask(__name__)

logging.config.fileConfig('logging.conf')

@app.route('/')
def hello():
    app.logger.info('Hello, World!')
    return 'Hello, World!'

if __name__ == '__main__':
    app.run()

You would also need a logging.conf file to define your logging settings.

What should be included in the logging.conf file?

Your logging.conf file should include handlers, formatters, and loggers. Here's a basic example:

[loggers]
keys=root,flask

[handlers]
keys=consoleHandler

[formatters]
keys=defaultFormatter

[logger_root]
level=DEBUG
handlers=consoleHandler

[logger_flask]
level=DEBUG
handlers=consoleHandler
qualname=flask

[handler_consoleHandler]
class=StreamHandler
level=DEBUG
formatter=defaultFormatter
args=

[formatter_defaultFormatter]
format=%(asctime)s - %(name)s - %(levelname)s - %(message)s