How do I use the Ruby logging gem effectively?

How do I use the Ruby logging gem effectively?

To use the Ruby logging gem effectively, start by installing it with gem install logger. Then, you can create a logger instance in your application.

What are the different log levels I can use?

The Ruby logging gem supports several log levels: DEBUG, INFO, WARN, ERROR, and FATAL. You can set the level based on the importance of the messages.

Can I log to a file instead of the console?

Yes, you can log to a file by specifying the file path when creating the logger instance, like this: Logger.new('logfile.log').

How can I format the log messages?

You can format log messages by using the formatter method. For example, you can set a custom format like this: logger.formatter = proc { |severity, datetime, progname, msg| "#{datetime}: #{msg} " }.