Up application companion library for Node and the browser, providing out of the box solutions for authentication, logging, messaging and more.
$ npm install up
Up supports structured logging in the form of JSON written to stdout, the rest is handled by Up. To make this process a bit cleaner, up.js provides a Logger as shown here:
const { Logger } = require('up')
const log = new Logger()
log.error('user login attempt failed', { user: 'tobi' })
log.info('user login', { user: 'tobi' })
log.info('user logout', { user: 'tobi' })The following severity levels are available:
debuginfowarnerrorfatal
