Awesome Logger

A simple logger that does what it needs to do.

What does it do?

It logs your logs, warning, errors, and all other text messages to the console and, depending on the log level, to a file.

Why awesome?

Because I'm awesome. And also because the name simple-logger which I had originally thought of was already taken. But mostly the awesome thing.

Basic usage

Install the module using npm:

npm install awesome-logger

Require the logger like this:

log = require('awesome-logger')()

Then use it in your code like this:

log('This is a notice')

Log options

The first parameter is the string to log. Simple.

The second parameter is a number indicating the log level.

• 0: Info (default value, just like a regular console.log)
• 1: Success (prints in green)
• 2: Warning (prints in orange)
• 3: Non-critical error (prints in red)
• 4: Critical error (prints in bold red on white)

log('Hello world') // prints: Hello world
log('Hello world', 1) // prints (green text): Hello world
log('Hello world', 2) // prints (orange text): [WARN] Hello world
log('Hello world', 3) // prints (red text): [ERROR] Hello world
log('Hello world', 4) // prints (bold red text): [CRITICAL] Hello world

These error numbers aren't just for display purposes, they also define if the log should be logged to a file. By default, log levels 2 and higher (warnings and errors) get logged to a file. But you can configure this.

Also, log levels 2 and up add prefixes [WARN], [ERROR] and [CRITICAL] to the logs (so you don't have to)

Configuration

To create the logger, call a function. Leaving all parameters empty will use the default settings, but you can of course configure the logger to do what you want:

require('awesome-logger')(report_level, directory, disable_colours)

• Report_level: from which level should the logs be written to a file? In production, the default of 2 is usually the best choice. But for development you might want to set this to 0 to log everything to file.
• Directory: The directory in which your logs will be stored. In this directory, one log file will be created per day. Defaults to __dirname/logs/
• Disable_colours: Defaults to false. Set to true if you want to disable the use of colours in the console.

All parameters are optional.