@neodx/log ​

Powerful lightweight logger for new level of experience.

• Tiny and simple. < 1kb! without extra configuration
• Fast enough. No extra overhead, no hidden magic
• Customizable. You can replace most of the parts with your own
• Isomorphic. Automatically works in Node.js and browsers
• Typed. Written in TypeScript, with full type support
• Well featured. JSON logs, pretty console logs, error handling, and more
• Built-in HTTP frameworks ⛓️express, koa, Node core http loggers are supported out of the box

Installation ​

yard add @neodx/log

npm install @neodx/log

pnpm add @neodx/log

Getting Started ​

Let's start from the simplest example:

const log = createLogger();

log.info('Hello, world!'); // [my-app] Hello, world!
log.info({ object: 'property' }, 'Template %s', 'string'); // Template string { object: 'property' }
log.debug('Some additional information...'); // nothing, because debug level is disabled

const childLog = log.child('example');
const needToGoDeeper = childLog.child('next one', {
  level: 'debug'
});

childLog.warn('Hello, world!'); // [example] Hello, world!
needToGoDeeper.debug('debug is enabled here'); // [example › next one] debug is enabled here

Here we created a default logger, tried to log some messages, and created a child logger with a different level.