Subsequent.js and Micro Frontends Integration

This system permits other services and products to be advanced, deployed, and scaled independently through other groups. The good fortune of this architectural taste has impressed a equivalent method on the planet of frontend building: micro frontends.

What Are Micro Frontends?

Micro frontends prolong the rules of microservices to the frontend. The speculation is to decompose a internet software’s UI into smaller, semi-independent “micro” packages that paintings loosely in combination. Each and every workforce owns a selected function or a part of the software, with complete regulate over their area, from the database to the person interface.

This method brings a number of advantages:

  • Scalability: Other portions of the frontend will also be scaled independently.
  • Autonomy: Groups can increase, deploy, and replace their micro frontends independently.
  • Era Agnostic: Each and every micro frontend can probably use other frameworks or libraries.
  • Resilience: Isolation between micro frontends can save you cascading disasters.

Demanding situations With Micro Frontends

Whilst micro frontends be offering a large number of advantages, in addition they introduce demanding situations comparable to:

  • Integration: Making sure that all of the disparate portions of the applying paintings seamlessly in combination.
  • Constant UX: Keeping up a constant person enjoy throughout other micro frontends.
  • Efficiency: Keeping off efficiency bottlenecks that may happen because of a couple of micro frontends loading at the identical web page.
  • Shared Dependencies: Managing dependencies which are shared throughout micro frontends with out duplication.

Subsequent.js and Micro Frontends

Subsequent.js, a well-liked React framework, is understood for its simplicity and traditional over-configuration method. It helps server-side rendering static website online technology, and, extra importantly, it’s versatile sufficient to combine with a micro frontend structure.

Here is a fundamental instance of the way you must arrange a micro frontend structure the usage of Subsequent.js:

1. Set Up the Major Software Shell

Create a Subsequent.js software that can act because the “shell” or “container” software. This software will take care of the combination of the micro frontends.

npx create-next-app main-shell
cd main-shell
npm run dev

2. Create Micro Frontends

Generate separate Subsequent.js packages for each and every micro frontend. For instance, when you’ve got a product web page and a checkout activity, each and every of those generally is a separate app.

npx create-next-app product-page
npx create-next-app checkout-process

3. Serve Micro Frontends as Standalone Packages

Each and every micro frontend will have to have the ability to run independently. You’ll do so through deploying each and every app to its area or subdomain:

4. Combine Micro Frontends Into the Major Shell

To combine the micro frontends into the principle shell, you’ll be able to use iframe; server-side contains, or JavaScript ways like Internet Parts or module federation.

A easy client-side integration the usage of JavaScript may seem like this:

// In the principle shell software's part
const MicroFrontend = ({ title, host }) => {
  useEffect(() => {
    const scriptId = `micro-frontend-script-${title}`;

    const renderMicroFrontend = () => {
      window[`render${name}`](`${title}-container`, window.historical past);

    if (report.getElementById(scriptId)) {
      go back;

      .then(res => res.json())
      .then(manifest => {
        const script = report.createElement('script');
        script.identification = scriptId;
        script.crossOrigin = '';
        script.src = `${host}${manifest['main.js']}`;
        script.onload = renderMicroFrontend;

    go back () => {
      window[`unmount${name}`] && window[`unmount${name}`](`${title}-container`);
  }, [name, host]);

  go back <div identification={`${title}-container`} />;

const ProductPage = () => (
  <MicroFrontend title="ProductPage" host="" />

const CheckoutProcess = () => (
  <MicroFrontend title="CheckoutProcess" host="" />

// For your leading shell's pages the place you need to incorporate the micro frontend
export default serve as House() {
  go back (
      <h1>Welcome to the Major Shell</h1>
      <ProductPage />
      <CheckoutProcess />

This can be a simplified instance, and in a real-world state of affairs, you’ll wish to cope with cross-origin problems, arrange a extra tough verbal exchange channel between the principle shell and micro frontends (possibly the usage of Customized Occasions or a state control library), and take care of loading and mistake states extra gracefully.


Micro frontends constitute an important shift in frontend building, promising extra flexibility and scalability. When built-in with a framework like Subsequent.js, it supplies a structured but versatile trail to develop advanced internet packages. Alternatively, it is advisable weigh the complexity and desires of your mission, as micro frontends don’t seem to be a silver bullet and may now not swimsuit each and every workforce or software.

In apply, a hit implementation calls for a excellent working out of each the advantages and the prospective pitfalls, in addition to a disciplined option to design, building, and deployment. With cautious making plans and execution, micro frontends can assist groups construct large-scale packages extra manageably and sustainably.

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