@baileyherbert/logging

Logging

This package offers a logging solution based on a modular delivery concept. Simply create a logger instance, attach a delivery transport (such as console, file, or your own), and start logging!

Installation

npm install @baileyherbert/logging

Example

Create a logger instance. This is what we'll use to actually write output.

const logger = new Logger();

Create a console transport. This will print our output to the console. You can define a minimum log level for output. We'll use Trace here which will capture all levels of output.

logger.createConsoleTransport(LogLevel.Trace);

Create a file transport. This will send our output into a file. We'll set a minimum log level of Information to keep the logs minimal. Please note that the file transport has automatic log rotation enabled by default, but you can customize or disable this behavior.

logger.createFileTransport(LogLevel.Information, {
    fileName: 'logs/output.log'
});

Done! Now use the logger to write output to both the console and log file at once.

logger.trace('Starting example program');
logger.info('Hello world');

Both of those transports have many customization options, and you can also create your own. Check the transports guide to learn more.

Documentation

• Documentation website