luispablo-multilog

multilog

Simple wrapper for multiple loggers. Initially graylog and console.

Installation

npm install --save luispablo-multilog

Usage

First, get from anywhere you want some JSON with the properties. Such JSON must be an array with objects, with each object being a logger configuration.

For example, to get one console logger and one GrayLog logger use this:

const properties = [
    {name: 'console', level: 'DEBUG'},
    {
        name: 'gelf',
        level: 'WARN',
        config: {
            fields: {facility: "example", owner: "Tom (a cat)"}, // optional; default fields for all messages
            filter: [], // optional; filters to discard a message
            broadcast: [], // optional; listeners of a message
            adapterName: 'udp', // optional; currently supported "udp" and "tcp"; default: udp
            adapterOptions: {
                protocol: 'udp4', // udp only; optional; udp adapter: udp4, udp6; default: udp4
                family: 4, // tcp only; optional; version of IP stack; default: 4
                host: '127.0.0.1', // optional; default: udp4
                port: 12201 // optional; default: 12201
            }
        }
    }
]

Logging levels

So far, we have INFO, ERROR, WARN and DEBUG. And they work as you would expect them to. You must specify the level in each logger.

Then, create a MultiLog object:

const MultiLog = require("luispablo-multilog");
 
// ...
 
const log = MultiLog(properties);

and you're ready to go!

log.info("This is an info message");
 
// ...
 
const error = {code: 5, message: "Error message"}; // This can be anything you want
log.error(error);

and that's it, for the moment.

Credits

@luispablo