How to enable http2 protocol in nuxtjs

Enabling HTTP/2 in Nuxt.js can enhance website loading speed and performance due to features such as multiplexing, server push, and header compression. To enable HTTP/2 in your Nuxt.js project, follow these steps:

Step 1: Ensure HTTPS is Enabled

HTTP/2 requires HTTPS, so ensure your website is configured with HTTPS. This typically involves obtaining an SSL certificate and setting it up on the server.

Step 2: Utilize the Node.js HTTP/2 Module

As Nuxt.js is a framework built on Node.js, you can directly leverage the built-in http2 module of Node.js to enable HTTP/2.

Example Code:

javascript
const http2 = require('http2');
const fs = require('fs');
const { Nuxt, Builder } = require('nuxt');
const isProd = process.env.NODE_ENV === 'production';

// Read the SSL certificate
const options = {
  key: fs.readFileSync('./server.key'),
  cert: fs.readFileSync('./server.cert')
};

// Configure and start Nuxt.js
async function start() {
  const config = require('./nuxt.config.js');
  const nuxt = new Nuxt(config);
  if (!isProd) {
    const builder = new Builder(nuxt);
    await builder.build();
  }
  else {
    await nuxt.ready();
  }

  // Create the HTTP/2 server
  const server = http2.createSecureServer(options, (req, res) => {
    if (req.url === '/_nuxt') {
      return new Promise((resolve, reject) => {
        nuxt.render(req, res, promise => {
          promise.then(resolve).catch(reject);
        });
      });
    }
  });

  // Listen on port
  server.listen(3000, () => {
    console.log('Server listening on https://localhost:3000');
  });
}

start();

Step 3: Configure and Test

After setting up the HTTP/2 server, thoroughly test all website functionalities in the development environment to ensure proper operation. Verify that static files, API calls, and page rendering work as expected.

Step 4: Deploy to Production

Once testing is complete, deploy your application to the production environment. Ensure that the production server supports HTTP/2.

Notes

• Make sure to update your Nuxt.js and Node.js to the latest versions for optimal compatibility and performance.
• Thoroughly verify the SSL certificate configuration, as incorrect settings can result in the website being inaccessible.

By following these steps, you can effectively enable HTTP/2 in your Nuxt.js project, improving website performance and user experience.