Almost an exact replica of @elo7/fastify-svelte(MIT license) with the rollup config updated to work with rollup-plugin-svelte 7.1.0.

The plugin expects the following file structure:

|-> rollup.config.js
|-> server.js
|-> plugins/
| |-> fastify-svelte.js
|-> views/
| |-> Home.svelte
| |-> templates/
| | |-> Base.js

... then:

import Fastify from "fastify";
import svelteView from './plugins/fastify-svelte.js'

const fastify = Fastify({logger: true});

fastify.register(svelteView);

fastify.get('/', async (req, reply) => {
    reply.view('Home', { name: 'World' });
});


const start = async () => {
    try {
      await fastify.listen(3000)
    } catch (err) {
      fastify.log.error(err)
      process.exit(1)
    }
  }
  start()

or:

npx degit akontra/fastify-svelte myproject

cd myproject

npm install

First compile using:

rollup -c

then run with:

node server

Not that this will ever happen but:

• currently rollup emits css files in the wrong directory, can only be fixed with a script that moves the files after building. Look here,
• only pure SSR currently works, hydration isn't implemented yet even though the base.js template expects it. Check here for ideas on how to do that. You will have to implement plugins in the view engine as well, but that should not be that difficult, refer to original.

Bored, seemed cool. On a serious note, Svelte outputs small bundles and with partial hydration this might not be that stupid to use when most of the page is static and only a few small components need interactivity. Comes with nice css isolation too =).

MIT