@jacraig/woodchuck NPM

WoodChuck - Logging Library

WoodChuck is a versatile logging library for TypeScript/JavaScript that simplifies the process of logging messages within your applications and is built with structured event data at its heart. It provides a flexible and extensible logging framework to help you track and understand the flow of your application.

Features

Easy Integration: Simple setup for quick integration into your projects.
Customizable Logging Levels: Define and use different logging levels to categorize and filter messages.
Extensible Plugins: Extend functionality with plugins for various output formats and destinations.
Structured Logging: Log structured event data to make it easier to analyze and understand.
Flexible Configuration: Configure the logger with a fluent interface to customize the logging experience.

Installation

npm i @jacraig/woodchuck

Usage

Configure the logger with a sink to output to.

import { Logger, ConsoleSink } from '@jacraig/woodchuck';

Logger.configure()
    .minimumLevel("Information")
    .writeTo(new ConsoleSink())
    .build();

Log messages with different levels:

Logger.verbose("This is a verbose message: {key}", { "key": "value" });
Logger.debug("This is a debug message: {key}", { "key": "value" });
Logger.information("This is an information message: {key}", { "key": "value" });
Logger.warning("This is a warning message: {key}", { "key": "value" });
Logger.error("This is an error message: {key}", { "key": "value" }, new Error("This is an error"));
Logger.fatal("This is a fatal message: {key}", { "key": "value" }, new Error("This is a fatal error"));

Customize the logger with plugins:

Logger.configure()
    .enrichWith(new UserAgentEnricher())
    .enrichWith(new UrlEnricher())
    .enrichWith(new CallerEnricher())
    .formatUsing(new DefaultFormatter())
    .minimumLevel("Information")
    .writeTo(new ConsoleSink());

Or build your own plugins:

import { LogEventEnricher, LogEvent } from '@jacraig/woodchuck';

export class MyCustomPlugin implements LogEventEnricher {
    public enrich(logEvent: LogEvent): void {
        logEvent.properties["myProperty"] = "Something, something, something, dark side";
    }
}