What are some examples of logging in Ruby?

What are some examples of logging in Ruby?

In Ruby, you can use the built-in Logger class. For example, you can create a logger like this:

require 'logger'

logger = Logger.new(STDOUT)
logger.info('This is an info message')
logger.error('This is an error message')

This will log messages to the standard output.

Can I log to a file instead of STDOUT?

Yes, you can log to a file by specifying a file path when creating the Logger instance:

logger = Logger.new('logfile.log')
logger.warn('This is a warning message')

This will write the log messages to 'logfile.log'.

How can I set the logging level?

You can set the logging level using the level method. For example:

logger.level = Logger::WARN

This will only log messages that are warnings or errors.

Are there any other logging libraries I should consider?

Yes, there are several popular libraries like Log4r and Semantic Logger that offer more features and flexibility.