Welcome to the world of micro-frontends! In this guide, we’ll explore how to set up a single-spa application that imports registered applications from NPM packages and manages authentication features such as login. For those keen to dive deeper, we’ve crafted a user-friendly step-by-step tutorial that you can follow easily.

Understanding Single-Spa

Single-Spa is a framework for building micro-frontends. Think of it as a symphony orchestra where each instrument (or application) plays its own part, but together they create a beautiful melody. Each application, written in a different framework (like React, Vue, or Angular), communicates and collaborates harmoniously under a single umbrella.

Motivation Behind the Project

This application serves as a demo of how you can utilize single-spa by splitting code with NPM packages. It integrates several applications seamlessly while providing a smooth login experience. Want to see it in action? Check out the live demo here.

Setting Up Your Application

To get started, follow these essential steps:

• Install Dependencies: Run npm install in your terminal.
• Run the Application: Execute npm run serve.
• Access the Application: Open http://localhost:8080 in your browser.

Understanding the Code Structure

The application relies on several files, each fulfilling a vital role:

• package.json: Contains metadata and scripts for the project.
• root-application.js: The heart of your single-spa application where all registered applications are initialized.
• server.js: Sets up the backend using Express to serve your application.
• webpack.config.js: Configures Webpack for module bundling and asset management.

Diving Deep into The Code

Let’s break down the root-application.js into a delightful analogy. Imagine this code as a conductor guiding an orchestra:

• The conductor’s baton is like singleSpa.registerApplication, managing when to bring each instrument (application) into play based on the audience’s (URL’s) demands.
• Just as some instruments only play certain parts of a symphony, each application is conditionally loaded. For instance, the login application only shows when the user is not authenticated.
• The harmony between apps ensures a smooth transition, akin to changing musical sections in a concert without missing a beat, achieved by functions like showWhenAnyOf and showWhenPrefix.

singleSpa.registerApplication(
  'login',
  () => import('single-spa-auth-app'),
  showWhenAnyOf(['login'])
);

Troubleshooting Common Issues

If you run into any snags while following this guide, here are some troubleshooting tips:

• Application Not Loading: Ensure you have run npm install successfully, and check your console for any errors.
• Login Fails: The demo login credentials are hardcoded as User: admin Password: 12345. Ensure you are using them correctly.
• Check the Server Configuration: Make sure your server is running if you are using the production build.

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Conclusion

At fxis.ai, we believe that advancements like these are crucial for the future of AI, enabling more efficient solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.