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A logging module for node.js services
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What is Bunyan?

It is a simple and fast JSON logging module for node.js services. It has extensible streams system for controlling where log records go (to a stream, to a file, log file rotation, etc.)
Bunyan is a tool in the Logging Tools category of a tech stack.
Bunyan is an open source tool with 7K GitHub stars and 538 GitHub forks. Here’s a link to Bunyan's open source repository on GitHub

Who uses Bunyan?


19 developers on StackShare have stated that they use Bunyan.

Bunyan's Features

  • Elegant log method API
  • Extensible streams system for controlling where log records go (to a stream, to a file, log file rotation, etc.)
  • bunyan CLI for pretty-printing and filtering of Bunyan logs
  • simple include of log call source location (file, line, function) with src: true
  • lightweight specialization of Logger instances with log.child
  • Custom rendering of logged objects with "serializers"
  • Runtime log snooping via DTrace support
  • Support for a few runtime environments: Node.js, Browserify, Webpack, NW.js

Bunyan Alternatives & Comparisons

What are some alternatives to Bunyan?
It is an open source logging framework. With this tool – logging behavior can be controlled by editing a configuration file only without touching the application binary and can be used to store the Selenium Automation flow logs.
Castle Core
It provides common Castle Project abstractions including logging services. It also features Castle DynamicProxy a lightweight runtime proxy generator, and Castle DictionaryAdapter.
Loki is a horizontally-scalable, highly-available, multi-tenant log aggregation system inspired by Prometheus. It is designed to be very cost effective and easy to operate, as it does not index the contents of the logs, but rather a set of labels for each log stream.
Seq is a self-hosted server for structured log search, analysis, and alerting. It can be hosted on Windows or Linux/Docker, and has integrations for most popular structured logging libraries.
CocoaLumberjack is a fast & simple, yet powerful & flexible logging framework for Mac and iOS.
See all alternatives

Bunyan's Followers
15 developers follow Bunyan to keep up with related blogs and decisions.