bunlogger

bunlogger

logging utilities built on Bunyan and RotateLog-Stream

Installation

$ npm install bunlogger --save

Features

1. error log and access log share the same cor_id, so you can associate the error log to the access log happened at the same time.
2. req.log is actually the bunyan logger, simply req.log.info('...') will share the same cor_id in the access log and error log.
3. elapsed show the time spent in this req.
4. Use rotatelog-stream for rotating logs.
5. Better error information for debugging.

Quick Start

express

const express = require('express');
const Bunlog = require('bunlogger');

   
var app = express();
var logger = new Bunlog();

// as a middleware
app.use(logger.connect());

// as an error handler
app.use(logger.error());

Create logger

logger is using rotatelog-stream for rotating logs.

const Logger = require('..').Logger;
const join = require('path').join;

var log = new Logger({logDir: join(__dirname, 'log')});

log.info('hi info');
log.warn('hi warn');
log.error('hi error');

Print Error

const print = require('bunlogger').printErr;

try {
  new NotExist();
} catch (er) {
  print(er)
}

cli

make sure bunyan is installed globally

$ DEBUG=* node bin/www | bunyan

Options

• name: {String},
• logDir: 'path/to/log/directory' - directory to save log files
• keep: {Number} - how many log files keep. See rotatelog-stream
• maxsize: {Number} - max filesize allowed. See rotatelog-stream
• dev: {Boolean} - Enable process.stdout for development
• streams: {Array} - additional streams for Bunyan