Using the Logger Module

The Logger module provides a flexible and configurable logging system for both browser and Node.js environments. This guide will demonstrate how to use the module to log messages with different log levels and styling.

Installation

To use the Logger module, first ensure you have the necessary files in your project:

• deno add jsr:@hilmarch/logger for the package Logger functionality.

Usage

Importing the Logger

To get started, import the logger instance from jsr:

import { logger } from "jsr:@hilmarch/logger";

Configuring the Logger

You can configure the logger by specifying log levels, transports, and default metadata:

import { logger } from "jsr:@hilmarch/logger";

logger.configure({
  level: "debug",
  transports: {
    console: { level: "info" },
  },
  defaultMeta: { service: "user-service" },
});

Logging Messages

The Logger provides several methods for logging messages at different levels:

• logger.info(...args: any[]): Logs informational messages.
• logger.success(...args: any[]): Logs success messages.
• logger.warn(...args: any[]): Logs warning messages.
• logger.error(...args: any[]): Logs error messages.
• logger.debug(...args: any[]): Logs debug messages.
• logger.verbose(...args: any[]): Logs verbose messages.

Example:

logger.info("This is an info message");
logger.error("This is an error message", { errorCode: 123 });

Environment Detection

The detectEnvironment() method determines if the code is running in a browser or Node.js environment, which influences how messages are styled.

Conclusion

The Logger module offers a powerful and flexible way to manage logging across different environments, with support for colorized output and different log levels. Customize the configuration and color settings as needed to fit your application's requirements.