Methods for excluding individual packages from bundling

I am looking to exclude specific packages from being bundled together in my application. The documentation provides guidance on how to do so:

/** @type {import('next').NextConfig} */
const nextConfig = {
  serverExternalPackages: ['package-name'],
}
 
module.exports = nextConfig

However, when I attempted to implement this, I encountered an issue:

⚠ Invalid option found in next.config.mjs file: 
⚠     The key 'serverExternalPackages' is not recognized
⚠ For more details, please refer to: https://example.com/error-messages

Even though I followed the instructions as stated:

/** @type {import('next').NextConfig} */
const nextConfig = {
  serverExternalPackages: ['package-name'],
}
 
module.exports = nextConfig

The compiler immediately raised an error upon execution.

Answer №1

It seems that the solution I attempted previously was actually found in the Nextjs documentation. It appears that the option serverExternalPackages is no longer valid for configuring Nextjs.

To exclude specific packages from being bundled on the server-side, Nextjs offers a different method for handling package exclusions: Delegating the task to webpack!

/** @type {import('next').NextConfig} */
const nextConfig = {
    webpack: (config, { isServer }) => {
        if (isServer) {
            // Exclude certain packages from the server-side bundle
            config.externals.push('muhammara', '@mapbox/node-pre-gyp');
        }
        return config;
    },
}

export default nextConfig;

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