@kazeblockchain/kazejs/src/logging.js

Javascript libraries for Kaze wallet

import loglevel from 'loglevel'
import prefix from 'loglevel-plugin-prefix/lib/loglevel-plugin-prefix'

prefix.reg(loglevel)
loglevel.setDefaultLevel('silent')

loglevel.setAll = (lvl) => {
  Object.keys(loglevel.getLoggers()).map(key => {
    const lg = loglevel.getLogger(key)
    lg.setLevel(lvl)
  })
}

const fn = (level, logger) => {
  const timestamp = new Date().toUTCString()
  level = level.toUpperCase()
  const name = logger
  return `[${timestamp}] (${name}) ${level}: `
}

export default (label) => {
  const logger = loglevel.getLogger(label)
  prefix.apply(logger, { format: fn })
  return logger
}
export const logger = loglevel