Logging Appender

Logging appenders are used to process the log information. For example, the default appender sends the log to System.debug.

The default appender supports a prefix pattern, which can customize the prefix of the message.

[
    {
        "patterns": [ "test" ],
        "level": "Debug",
        "appenders": [
            {
                "name": "Log.DefaultAppender",
                "options": {
                    "prefixPattern": "%t - %m - %l - %c - "
                }
            }
        ]
    }
]

And your logger debugs some messages.

logger.debug('message');

The output will be like 'CurrentClassName - CurrentMethodName - CurrentLineNumber - CurrentColumnNumber - message'.