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Server-side rendering

Aesthetic supports server-side rendering and client-side hydration (this happens automatically). However, it does require a bit of setup.


On the server, we'll need to import and call createServerEngine() from @aesthetic/style/server to extract critical CSS with extractStyles(). In the example below, we'll use Express as our server.

import express from 'express';
import { createServerEngine, renderToStyleMarkup } from '@aesthetic/style/server';
const server = express();
server.get('/', (req, res) => {
// Instantiate an engine for the server
const engine = createServerEngine();
// Render the application and extract critical CSS with the engine
const content = engine.extractStyles(renderApplication());
// Convert the extracted styles to HTML `style` tags
const styles = renderToStyleMarkup(engine);
// Render using your preferred template engine
res.render('layout', {