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Tauri Module Federation

Use Module Federation in Tauri apps with @module-federation/tauri and the companion Rust plugin tauri-plugin-module-federation.

Important

@module-federation/tauri rewrites remote entries to the module-federation:// protocol. Your Tauri app must register tauri-plugin-module-federation so those requests can be fetched, cached, and replayed offline.

What you get

  • A Module Federation runtime plugin for Tauri hosts.
  • A Tauri custom protocol handler that fetches and caches remote assets.
  • Offline fallback when a remote module has already been fetched once.

Package usage

import { pluginModuleFederation } from '@module-federation/rsbuild-plugin';

export default {
	plugins: [
		pluginModuleFederation({
			name: 'host',
			remotes: {
				remote: 'remote@http://localhost:3002/remoteEntry.js',
			},
			runtimePlugins: ['@module-federation/tauri'],
		}),
	],
};
tauri::Builder::default()
    .plugin(tauri_plugin_module_federation::init())
    .run(tauri::generate_context!())
    .expect("error while running tauri application");

Example apps

  • Host app: example/host on http://localhost:3001
  • Guest app: example/guest on http://localhost:3002
  • Guest app 2: example/guest-2 on http://localhost:3003
  • Start all apps from repo root with pnpm dev
  • More example details: example/README.md

Behavior

  • Remote entry URLs are rewritten from http(s)://... to module-federation://.../?fullUrl=....
  • The Tauri plugin fetches those assets over the network and stores them in the app cache dir.
  • Cache keys are derived from the remote host and request path.
  • If a later fetch fails, the cached asset is served instead.

Build checks

pnpm install
pnpm build

Repo layout

  • Rust plugin: packages/tauri-plugin
  • Runtime package: packages/tauri
  • Example apps: example/*

License

MIT