@platform/react.ssr/lib/server/routes.resource.mjs

A lightweight SSR (server-side-rendering) system for react apps bundled with ParcelJS and hosted on S3.

import { parse as parseUrl } from 'url';
import { fs } from './common';
const CACHE = { 'Cache-Control': `s-maxage=5, stale-while-revalidate` };
export function init(args) {
    const { router, getManifest } = args;
    router.get('*', async (req) => {
        const manifest = await getManifest();
        if (!manifest.ok) {
            const status = manifest.status;
            const message = 'Manifest could not be loaded.';
            return { status, data: { status, message } };
        }
        const host = req.headers.host;
        const hostname = (host || '').split(':')[0];
        const site = manifest.site.byHost(hostname);
        if (!site) {
            const status = 404;
            const message = `A site definition for the domain '${hostname}' does not exist in the manifest.`;
            return { status, data: { status, message } };
        }
        const url = parseUrl(req.url || '', false);
        const route = site.route(url.pathname || '');
        const ext = fs.extname(url.pathname || '');
        if (route && !ext) {
            const entry = await route.entry();
            if (entry.ok) {
                return {
                    headers: CACHE,
                    data: entry.html,
                };
            }
            else {
                const { status, url } = entry;
                const message = `Failed to get entry HTML from CDN.`;
                return {
                    status,
                    headers: CACHE,
                    data: { status, message, url },
                };
            }
        }
        const location = site.redirectUrl(url.pathname || '');
        if (location) {
            return {
                status: 307,
                data: location,
            };
        }
        return undefined;
    });
}