Introduction

Micro Frontends is an architectural style that extends the concepts of microservices to the frontend. It allows for the development of web applications as a composition of independent, self-contained frontend applications.

Key Concepts

• Independent Deployability: Each micro frontend can be deployed independently.
• Technology Agnostic: Different teams can use different technologies.
• Team Autonomy: Teams are responsible for their own services.
• Shared Infrastructure: Common libraries and tools can be shared.

Architecture

The architecture of micro frontends can be understood in three layers:

1. Shell: The main application that hosts the micro frontends.
2. Micro Frontends: Independent applications that are integrated into the shell.
3. Communication: Mechanisms for interaction between micro frontends.

Flowchart of Micro Frontends Architecture

graph TD;
                A[Shell Application] --> B[Micro Frontend 1];
                A --> C[Micro Frontend 2];
                B --> D[Shared Components];
                C --> D;
            

Implementation

Here’s a basic example of how to implement a micro frontend architecture using React:

import React from 'react';
                import ReactDOM from 'react-dom';

                const App = () => {
                    return (
                        

                            
Micro Frontend Example
                            
                            
                        
                    );
                };

                const MicroFrontend1 = () => 
Micro Frontend 1
;
                const MicroFrontend2 = () => 
Micro Frontend 2
;

                ReactDOM.render(, document.getElementById('root'));

Best Practices

• Define clear contracts between micro frontends.
• Use a shared design system to maintain UI consistency.
• Monitor performance and errors at the shell level.
• Implement proper routing and state management.

FAQ