lgjs

Updating from v2 to v3

No significant changes will be needed to your code. Some functions are now private (e.g. ensure).

What is lgjs?

lgjs is a Node.js log framework! It's designed to produce machine-readable logs that can be later parsed and read.

How do I use it?

It's very easy!

import lgjs from 'lgjs';
// OR
import { Logger } from 'lgjs';

Then, make an instance of Logger:

//                 Name your logger!
//                      vvvvv
let logger = new Logger('main', {
    /* options */
});

To log, use the functions on Logger!

//                            (Optional) location
//                                  vvv
logger.info('Hello, World!', 'HelloWorldHandler');

How do I read the raw log data?

If you have to, you can read the raw data.

Data is formatted like this, in an array:

{
    "message": "My error message",
    "type": "The type of log",
    "stack": ["the", "stack", "trace", "to", "the", "log"],
    "time": 0, // Date.now() timestamp of time
    "sender": {
        "facility": "Logger name",
        "describer": "Optional, the location argument"
    }
}

Parsing log data

Log data can be parsed by the Parser export.

import { Parser } from 'lgjs';

Now, create a Parser:

const parser = new Parser({
    /* options */
});

Options:

| Key | Optional | Default | Description | | ------------ | -------- | -------- | -------------------------------------------------------------------------- | | dir | Yes | ./logs | The directory to read logs from, avoid trailing slashes. | | separator | Yes | '' | Separate log files with this string, newlines will be added automatically. | | verbose | Yes | false | console.log() verbose output while parsing? | | showStacks | Yes | false | Show stack traces to every log? |

Parsing logs

Once you've set up a Parser, you can parse logs like this:

parser.parse();

Check out our docs!