node-bunyan | a simple and fast JSON logging module for node.js services

$ npm install browserify bunyan


var bunyan = require('bunyan');
var log = bunyan.createLogger({name: 'play', level: 'debug'});
log.trace('this one does not emit');
log.debug('hi on debug');   // console.log
log.info('hi on info');     // console.in  

/*
 * Example of a MuteByEnvVars Bunyan stream to mute log records matching some
 * envvars. I.e. as a way to do:
 *      https://github.com/trentm/node-bunyan/issues/175
 *      https://github.com/trentm/node-bunyan/pull/176
 * outside of core.
 *
   

#!/usr/bin/env node
/**
 *  was a request to have
 * bunyan core support logging some levels to one stream and others to another,
 * *not* limited by bunyan's current support that a stream `level` implies
 * "that level and higher".
 *
 * Let's do th  

var bunyan = require('./'),
    safeCycles = bunyan.safeCycles;
var util = require('util');


function SpecificLevelStream(levels, stream) {
    var self = this;
    this.levels = {};
    levels.forEach(function (lvl) {
        self.levels[bunyan.res  

var colors = require('colors');
var bunyan = require('bunyan');

function MyRawStream() {}
MyRawStream.prototype.write = function (rec) {
    console.log('[%s] %s: %s',
        rec.time.toISOString(),
        bunyan.nameFromLevel[rec.level

const bunyan = require('bunyan')
const serializers = {
  valuesWithIds: vals => vals.map(v => v.value)
}
const logger = bunyan.createLogger({ name: 'root', level: 'error' })

const valuesWithIds = [{ id: 1, value: 'a' }, { id: 1, val

var bunyan = require('bunyan');

function modifiedStream(filePath) {
  return {
    write: log => {
      log.level = bunyan.nameFromLevel[log.level];
      log.time = new Date().valueOf();
      log._timeStamp = new Date().toISOString(

const bunyan = require( "bunyan" ),
      stream = require( "stream" );

class MyStream extends stream.Writable {

    /**
     * When we have a record from bunyan
     */
    write( record ) {
            console.log( "-----> ", record