Micro Frontend Frameworks in Action

2.1 Background

In this case study, we explore how a large e-commerce platform adopted micro frontends to improve scalability and maintainability. The platform had multiple teams, each responsible for different functionalities such as product catalog, checkout, and user profiles.

2.2 Key Challenges

• Difficulty in integrating multiple technologies.
• Slow development cycles due to dependencies.
• Inconsistent user experience across different parts of the application.

4.1 Define Micro Frontend Boundaries

Identify distinct modules in your application that can be developed independently.

4.2 Choose a Framework

Select a micro frontend framework that meets your project requirements.

4.3 Configure the Build System

Set up your build system to handle multiple micro frontends. Here's an example using Webpack 5 with Module Federation:

const ModuleFederationPlugin = require("webpack/lib/container/ModuleFederationPlugin");

module.exports = {
    plugins: [
        new ModuleFederationPlugin({
            name: "app1",
            filename: "remoteEntry.js",
            exposes: {
                './Component': './src/Component',
            },
            shared: { react: { singleton: true }, "react-dom": { singleton: true } },
        }),
    ],
};
            

4.4 Develop and Deploy

Each team develops their respective micro frontend independently and deploys it to the chosen environment.

4.5 Integrate Micro Frontends

Finally, integrate these micro frontends into the host application. Here's a simple example:

import React from 'react';
import { mount } from 'app1/Component';

const App = () => {
    const ref = React.useRef(null);
    React.useEffect(() => {
        mount(ref.current);
    }, []);
    return 
;
};

export default App;