Sometimes called Appender, the handlers are the output implementations. They are the ones receiving the LogRecord of the previous part and doing something with it.
The most common implementations are:
- The FileHandler : Outputs the messages in a file.
- A MailHandler : Sends the messages by mail. This is a particular handler that should not be used for a high volume of messages but it can be used with a particular logger dedicated to sending some messages under specific circumstances.
- The ConsoleHandler to output messages into the console.
- There are more, such as JMSHandler, ElasticsearchHandler, HTTPHandler, and so on.
In any case, the handlers are sending data to a backend which can be anything, and the logging framework always ensures ...
