npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2026 – Pkg Stats / Ryan Hefner

dromeda

v1.0.0

Published

A NodeJS circuit breaker implementation using Opossum

Readme

✨ Features

  • ▶️ Easy start — just install and start using
  • 📒 Completely documented
  • 💾 Extremely lightweight and concise implementation

What is circuit breaker?

The circuit breaker is a relatively simple design pattern. It's all based on the idea that you package protected function calls inside a circuit breaker object. This object will be responsible for monitoring possible failures.

The idea is an inspiration from the electric circuit breakers. When there is an instability in the electrical system, all electrical energy is automatically turned off by the circuit breaker. Thinking on the same, it's possible to apply the same idea to software architecture.

What is an act?

Act is the method you want to execute and tends to be prone to failures.

Demonstration

If you want to see the implementation working, run the following command after cloning the repository and install the dependencias:

npm start

States

  • CLOSED (Default state)
  • OPEN
  • HALF_OPEN

Methods

  • getCurrentState()
  • updateState(newState)
  • executeAct(act, timePreferences, isHalfOpen)

📝 License

This project is licensed under the MIT license

✨ Designed by Gabriel Marinho. Follow me on GitHub!