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Add per-page metadata (generateMetadata from query-index) #31

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Merged
lamontacrook merged 1 commit into from
Jul 6, 2026
Merged

Add per-page metadata (generateMetadata from query-index) #31

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9 changes: 9 additions & 0 deletions app/(site)/[[...slug]]/page.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,15 @@ import { notFound } from 'next/navigation';
import { fetchPlainHtml, EDS_ORIGIN } from '../../../lib/eds/fetch.js';
import { parseEds } from '../../../lib/eds/parse.js';
import { renderNode } from '../../../lib/eds/render.js';
import { buildMetadata } from '../../../lib/eds/metadata.js';

// Per-page <head> metadata (title, description, Open Graph) from the page's authored Metadata
// block, read via the query-index feed. Falls back to the root layout defaults when a page
// isn't indexed.
export async function generateMetadata({ params }) {
const { slug } = await params;
return buildMetadata((slug ?? []).join('/'));
}

// Pre-render every published page at build time from the EDS query-index feed (SSG). Pages
// not in the feed (or added later) still resolve on demand via ISR, since dynamicParams
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23 changes: 23 additions & 0 deletions lib/eds/metadata.js
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@@ -0,0 +1,23 @@
import { fetchQueryIndex, normalizePath } from './queryIndex.js';

// Build Next.js metadata for a page from the EDS query-index — title, description, and
// og:image, all authored via the page's Metadata block and indexed by helix-query.yaml.
// Returns {} when the page isn't in the feed (unpublished / excluded), so the root layout's
// default title/description apply.
export async function buildMetadata(pathSlug = '') {
const map = await fetchQueryIndex();
const row = map.get(normalizePath(`/${pathSlug}`));
if (!row) return {};

const meta = {};
if (row.title) meta.title = row.title;
if (row.description) meta.description = row.description;

const openGraph = {};
if (row.title) openGraph.title = row.title;
if (row.description) openGraph.description = row.description;
if (row.image) openGraph.images = [{ url: row.image }];
if (Object.keys(openGraph).length) meta.openGraph = openGraph;

return meta;
}