Introduction to Single-SPA

What is Single-SPA?

Single-SPA is a JavaScript framework for building micro frontends. It allows you to build applications using multiple frameworks (such as React, Angular, Vue, etc.) in a single application seamlessly.

By using Single-SPA, you can load and unload applications dynamically, enabling a more flexible and scalable architecture for web applications.

Key Concepts

Micro Frontends: Independent applications that can be developed and deployed separately.
Single-SPA: A framework to orchestrate multiple micro frontends.
Application Lifecycle: The lifecycle of applications (mount, unmount, update).
Routing: Handling routing between different micro frontends.

Installation & Setup

To get started with Single-SPA, follow these steps:

Install Single-SPA CLI globally:

npm install -g create-single-spa

Create a new Single-SPA application:

create-single-spa

Follow the prompts to set up your project.

Creating Applications

Once you have set up your project, you can create individual applications:

Use the Single-SPA CLI to create a new application:

create-single-spa

Choose the framework for your application (React, Angular, Vue).
Follow the prompts to generate your micro frontend.

Best Practices

When working with Single-SPA, consider the following best practices:

Keep micro frontends small and focused on a single responsibility.
Manage shared state carefully between micro frontends.
Use versioning for each micro frontend to avoid breaking changes.
Utilize lazy loading for performance optimization.

Note: Always test the integration of micro frontends thoroughly to ensure seamless interaction.

FAQ

What frameworks can I use with Single-SPA?

You can use any framework including React, Angular, Vue, and even vanilla JavaScript.

How does routing work in Single-SPA?

Single-SPA provides a routing mechanism that allows you to define routes for your micro frontends, enabling seamless transitions between them.

Can I use Single-SPA with an existing application?

Yes, Single-SPA can be integrated into existing applications to gradually migrate to a micro frontend architecture.