Frameworks for Decomposition Strategies in Micro Frontends

Introduction

Micro frontends allow teams to develop, deploy, and scale parts of a frontend application independently. Choosing the right decomposition strategy and framework is crucial for maintaining a modular architecture.

Key Concepts

What are Micro Frontends?

Micro frontends are an architectural style that allows independent teams to develop frontend applications with their own stack.

Decomposition Strategies

Vertical Decomposition: Split by feature or business domain.
Horizontal Decomposition: Split by technical layers like UI, Business Logic, and Data Access.

Decomposition Strategies

Note: The choice of strategy should align with team structures and project requirements.

Vertical Decomposition

This strategy focuses on creating independent applications based on specific features.

Horizontal Decomposition

This strategy divides the application into independent layers, allowing for more focused team responsibilities.

Frameworks

Single-SPA

Single-SPA is a framework for building micro frontends that allows multiple frameworks to work together.


                import { registerApplication, start } from 'single-spa';

                registerApplication(
                    'app1',
                    () => import('./app1/main.js'),
                    () => true
                );

                start();

Module Federation

Webpack 5 introduced Module Federation, enabling dynamic module loading between applications.


                // webpack.config.js
                module.exports = {
                    output: {
                        publicPath: 'auto',
                    },
                    experiments: {
                        outputModule: true,
                    },
                    plugins: [
                        new ModuleFederationPlugin({
                            name: 'app1',
                            filename: 'remoteEntry.js',
                            exposes: {
                                './Component': './src/Component',
                            },
                        }),
                    ],
                };

Best Practices

Choose a consistent communication protocol between micro frontends.
Use shared libraries cautiously to avoid version conflicts.
Establish clear ownership for each micro frontend.
Ensure that each micro frontend can be deployed independently.

FAQ

What is the main advantage of using micro frontends?

The main advantage is the ability for teams to work independently, leading to faster development cycles and better scalability.

Can I use different frameworks for different micro frontends?

Yes, this is one of the core benefits of micro frontends; you can choose the best framework for each part of your application.

What challenges do micro frontends introduce?

Some challenges include increased complexity in deployment, the need for cross-team communication, and potential performance issues if not managed properly.