@ecopages/logger

A lightweight, flexible logging library. This logger supports multiple log levels and allows for easy extension and integration into any project.

Features

• Multiple Log Levels: Supports INFO, ERROR, WARN, and DEBUG log levels for granular control over logging output.
• Prefixed Messages: Allows for prefixing log messages for better identification and filtering.
• Easy to Extend: Designed with simplicity in mind, making it easy to extend or modify to fit specific requirements.

Usage

First, import the Logger class from the logger.ts file:

import { Logger } from "./path/to/logger";

Create an instance of the Logger class, optionally specifying a prefix for all log messages:

const logger = new Logger("[my-app]");

Use the logger instance to log messages at different levels:

logger.info("This is an informational message");
logger.warn("This is a warning message");
logger.error("This is an error message");
logger.debug("This is a debug message");

[my-app] This is an informational message
[my-app] This is a warning message
[my-app] This is an error message
[my-app] This is a debug message

API

Constructor

• Logger(prefix: string): Creates a new logger instance with the specified prefix.

Methods

• info(...args: any[]): Logs an informational message.
• warn(...args: any[]): Logs a warning message.
• error(...args: any[]): Logs an error message.
• debug(...args: any[]): Logs a debug message.

Extending the Logger

To extend the logger with additional functionality, you can subclass the Logger class. For example, to add a method for logging fatal errors:

class ExtendedLogger extends Logger {
  fatal(...args: any[]) {
    // Custom implementation for fatal errors
  }
}

Debugging Instructions

By default, the debugging feature is turned off. To enable it you can provide an options object to the logger constructor.

const logger = new Logger("[my-app]", { debug: true });

[my-app] This is a debug message