Micro Frontends Architecture with Module Federation · Lezione

Configurazione e setup del progetto

Impostate un nuovo progetto da zero, configurando Webpack e Module Federation per più applicazioni.

Configurazione e setup del progetto è una lezione Micro Frontends Architecture with Module Federation gratuita su CoddyKit. Questa è la lezione 1 di 4. Puoi leggere la lezione completa qui gratuitamente — poi esercitati direttamente nel browser con un editor di codice integrato e un tutor IA disponibile 24/7. Fa parte del percorso di apprendimento Micro Frontends Architecture with Module Federation, e i tuoi progressi si sincronizzano tra il web e l'app CoddyKit. Il corso Micro Frontends Architecture with Module Federation include 4 lezioni in totale.

Parti di questa lezione non sono ancora state tradotte e vengono mostrate in inglese.

Welcome to Federated Apps!

Ready to build your first Micro Frontend application? This lesson guides you through setting up a host and a remote application using Webpack's Module Federation.

We'll start from scratch, covering project structure, basic Webpack configuration, and integrating the powerful Module Federation Plugin.

Host and Remote Apps

In Module Federation, we have two main types of applications:

Host Application: This is your main shell application that consumes (loads) components or modules from other applications. Think of it as the orchestrator.
Remote Application: This is an independent application that exposes (shares) its components or modules for others to consume.

We'll set up both in our project!

Project Folder Structure

Let's organize our project. We'll create a main directory and then sub-directories for our host and remote applications. This keeps them separate but within the same workspace for easy development.

my-federated-app/
├── host/
│   ├── src/
│   └── public/
└── remote/
    ├── src/
    └── public/

Initialize & Install Webpack

First, navigate into both host and remote directories and initialize npm. Then, install Webpack and its command-line interface (CLI) as development dependencies, along with dev server and HTML plugin.

// In host/ and remote/ directories:
npm init -y
npm install webpack webpack-cli webpack-dev-server html-webpack-plugin --save-dev
npm install react react-dom --save

Host App: Entry & HTML

The host application needs an entry point. We'll create a simple index.js file that serves as the main script for our host. This is where our application will start.

// host/src/index.js
console.log('Host application is now running!');

// host/public/index.html
<!DOCTYPE html>
<html>
  <head><title>Host App</title></head>
  <body>
    <div id="root"></div>
  </body>
</html>

Remote App: Component & Entry

Our remote application will expose a simple React component. Let's create an App.js for the component and an index.js to render it for local development. We'll assume React is already installed.

// remote/src/App.js
import React from 'react';

const App = () => {
  return (
    <div style={{ padding: '10px', border: '1px solid blue' }}>
      <h3>Remote App Component</h3>
      <p>Hello from the remote!</p>
    </div>
  );
};

export default App;

// remote/src/index.js (for local dev)
import React from 'react';
import ReactDOM from 'react-dom/client';
import App from './App';

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(<App />);

Webpack Config: Host Base

Now, let's create a basic webpack.config.js for the host. This configuration tells Webpack where to start bundling and where to output the final bundle, and sets up a dev server.

// host/webpack.config.js
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  mode: 'development',
  entry: './src/index.js',
  devServer: {
    port: 8080,
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html',
    }),
  ],
};

Webpack Config: Remote Base

Similar to the host, the remote app also needs its own Webpack configuration. We'll set up its entry point, output, dev server port, and HTML plugin.

// remote/webpack.config.js
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  mode: 'development',
  entry: './src/index.js',
  devServer: {
    port: 8081,
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: './public/index.html',
    }),
  ],
};

The ModuleFederationPlugin

This is the core of our setup! Webpack's ModuleFederationPlugin enables applications to dynamically load code from other applications. It allows you to define:

name: A unique name for your application.
remotes: Which remote applications this app consumes.
exposes: Which modules this app offers to others.
shared: Common dependencies to share.

Configuring Host with MF

Now, let's update the host's webpack.config.js to use the ModuleFederationPlugin. The host will define its own name and specify the remotes it intends to consume.

// host/webpack.config.js (with MF)
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { ModuleFederationPlugin } = require('webpack').container;

module.exports = {
  mode: 'development',
  entry: './src/index.js',
  devServer: { port: 8080 },
  plugins: [
    new ModuleFederationPlugin({
      name: 'host',
      remotes: {
        remoteApp: 'remote@http://localhost:8081/remoteEntry.js',
      },
      shared: ['react', 'react-dom'],
    }),
    new HtmlWebpackPlugin({ template: './public/index.html' }),
  ],
};

Quick Check: Module Federation

When configuring the ModuleFederationPlugin for a host application, which property is used to define the remote applications it will consume?

Recap: Project Setup Complete!

Great job! You've successfully set up the foundational project structure and configured Webpack with the Module Federation Plugin for both a host and a remote application.

We initialized npm and installed Webpack.
Configured basic Webpack for both apps.
Integrated ModuleFederationPlugin, defining host name and remotes, and remote name, filename, and exposes.

Next, we'll learn how to actually share and consume components between these applications!

Domande Frequenti

La lezione «Configurazione e setup del progetto» è gratuita?

Sì — il testo completo di «Configurazione e setup del progetto» è gratuito qui sul web. Per esercitarvi in modo interattivo (un editor di codice integrato e un tutor IA 24/7) e sbloccare il resto del corso Micro Frontends Architecture with Module Federation, passa a CoddyKit PRO. Il corso Micro Frontends Architecture with Module Federation include 4 lezioni in totale.

Cosa imparerò in «Configurazione e setup del progetto»?

Impostate un nuovo progetto da zero, configurando Webpack e Module Federation per più applicazioni. Eserciti Micro Frontends Architecture with Module Federation con codice pratico che esegui direttamente nel browser, e un tutor IA 24/7 risponde alle tue domande mentre lavori sulla lezione.

Ho bisogno di esperienza per iniziare Micro Frontends Architecture with Module Federation?

Non è richiesta alcuna esperienza precedente. Micro Frontends Architecture with Module Federation su CoddyKit è strutturato per principianti e studenti avanzati, quindi puoi iniziare da qui o dall'inizio e procedere al tuo ritmo. Questa è la lezione 1 di 4.

Quanto tempo richiede la lezione «Configurazione e setup del progetto»?

La maggior parte delle lezioni CoddyKit richiede circa 5–10 minuti. Ogni lezione è breve e interattiva, quindi fai progressi costanti e riprendi esattamente da dove hai lasciato su web e app.

Posso scrivere ed eseguire codice in questa lezione Micro Frontends Architecture with Module Federation?

Sì. Ogni lezione Micro Frontends Architecture with Module Federation include un editor di codice integrato, quindi scrivi ed esegui codice reale direttamente nel tuo browser e ricevi feedback istantaneo dall'IA — nessuna configurazione locale necessaria.

Tutte le lezioni di questo corso

Configurazione e setup del progetto
Condivisione di moduli e componenti
Creazione di una semplice app federata
Eseguire e sottoporre a debug localmente l’app federata

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