loggerit

Typescript node package that wraps the node global console.

• Simple to use
• For Typescript

Technical notes

• Written in Typescript and compiled in ECMAScript with target version ES2015 (aka ES6)
• Node.js >= 8.0.0

Level

Six different levels with the following weight order

• TRACE: prints to stdout
• DEBUG: prints to stdout
• INFO: prints to stdout
• WARN: prints to stderr
• ERROR: prints to stderr
• FATAL: prints to stderr

And a special one

• NONE: prints nothing to nowhere

Installation

$ npm install --save loggerit

Typescript example

Import

import { Logger, Level } from 'loggerit';

INFO level

const logger: Logger = new Logger(Level.INFO);

logger.write(Level.TRACE, 'trace');
logger.write(Level.DEBUG, 'debug');
logger.write(Level.INFO, 'info');
logger.write(Level.WARN, 'warn');
logger.write(Level.ERROR, 'error');
logger.write(Level.FATAL, 'fatal');

Console result

Only INFO, WARN, ERROR and FATAL logs are written

NONE level

logger.setLevel(Level.NONE);

logger.write(Level.TRACE, 'trace');
logger.write(Level.DEBUG, 'debug');
logger.write(Level.INFO, 'info');
logger.write(Level.WARN, 'warn');
logger.write(Level.ERROR, 'error');
logger.write(Level.FATAL, 'fatal');

Console result

No logs

From string to Level type

const level: Level = (<any>Level)['INFO'];
//const level: Level = (Level as any)['INFO'];

From Level to string type

const stringLevel: string = Level[Level.INFO];