solid-ssr

solid-ssr

This library sets up node compatible middleware to handle Solid's SSR. It uses JSDOM and isolated processes to handle environment injection. See instructions below. Also provides solid-ssr/jest which is a Jest environment to render Solid when testing (probably unnecessary at this point).

This project is still in progress. Server rendering is Async and supports Suspense including lazy components. However, client side hydration only supports lazy components. Any Suspense triggering due to data fetching during rehydration will cause loading states to be entered again. Similarly while Web Components are support, the Shadow DOM isn't yet.

To use SSR on the server:

1. Install solid-js, solid-preset-solid, and solid-ssr.

2. Configure babel-preset-solid with generate option 'ssr'

"presets": [["solid", { "generate": "ssr" }]]

1. Set up server application:

const createServer = require("solid-ssr/server");
const render = createServer({ path: /* path to client entry*/ })

// under request handler
app.get("*", (req, res) => {
  const html = await render(req);
  res.send(html);
})

1. Use renderToString in client entry for SSR:

// top of entry file, must be imported before any components
import ssr from "solid-ssr"
import { renderToString } from "solid-js/dom";

ssr(async (req) => {
  // pull url off request to handle routing
  const { url } = req;
  const string = await renderToString(() => <App />);
  return render(string);
});

Remember to mark all of "solid-js", "solid-js/dom", "solid-ssr" as externals as no need to bundle these for server rendering entry.

To rehydrate on the client:

1. Configure babel-preset-solid with generate option 'hydrate'

"presets": [["solid", { "generate": "hydrate" }]]

1. Use hydrate entry:

import { hydrate } from "solid-js/dom";

hydrate(() => <App />, document.getElementById("main"));

Example

See example folder. Runs on http://localhost:8080/.

lerna run build:example --stream
lerna run start:example --stream

Demos Async server side rendering with routing using Lazy Components and Suspense. Notice how the browser skips any initial loading state as it is prerendered. useTransition smooths loading of other tabs when navigating suspending the current content for 250ms before showing any fallback. The example also includes progressive hydration although there are currently no input fields to show it off. It captures input events before hydration is complete and replays them as it hydrates when safe to, to minimize uncanny valley.