qiankun（乾坤）

In Chinese traditional culture qian means heaven and kun stands for earth, so qiankun is the universe.

An implementation of Micro Frontends, based on single-spa, but made it production-ready.

🤔 Motivation

As we know what micro-frontends aims for:

Techniques, strategies and recipes for building a modern web app with multiple teams using different JavaScript frameworks. — Micro Frontends

Modularity is very important for large application. By breaking down a large system into individual sub-applications, we can achieve good divide-and-conquer between products and when necessary combination, especially for enterprise applications that usually involve multi-team collaboration. But if you're trying to implement such a micro frontends architecture system by yourself, you're likely to run into some tricky problems:

• In what form do sub applications publish static resources?
• How does the main application integrate individual sub-applications?
• How do you ensure that sub-applications are independent of each other (development independent, deployment independent) and runtime isolated?
• Performance issues? What about public dependencies?
• And so on...

After solving these common problems of micro frontends, we extracted the kernel of our solution after a lot of internal online application testing and polishing, and then named it qiankun.

Probably the most complete micro-frontends solution you ever met🧐.

📦 Installation

$ yarn add qiankun  # or npm i qiankun -S

📖 Documentation

https://qiankun.umijs.org/

💿 Getting started

This repo contains an examples folder with a sample Shell app and multiple mounted Micro FE apps. To run this app, first clone qiankun:

$ git clone https://github.com/umijs/qiankun.git
$ cd qiankun

Now run the yarn scripts to install and run the examples project:

$ yarn install
$ yarn examples:install
$ yarn examples:start

Visit https://localhost:7099.

✨ Features

• 📦 Based On single-spa
• 📱 Technology Agnostic
• 💪 HTML Entry Access Mode
• 🛡 Style Isolation
• 🧳 JS Sandbox
• ⚡ Prefetch Assets
• 🔌 Umi Plugin Integration

🎯 Roadmap

• [x] Parcel apps integration (multiple sub apps displayed at the same time, but only one uses router at most)
• [x] Communication development kits between master and sub apps
• [ ] Custom side effects hijacker
• [ ] Nested Microfrontends

❓ FAQ

https://qiankun.umijs.org/faq/

👬 Community

https://qiankun.umijs.org/#community

🎁 Acknowledgements

• single-spa What an awesome meta-framework for micro-frontends!
• import-html-entry An assets loader which supports html entry.