# Astro

> Build a fast Astro site on Kanorio content, with static or server rendering, rebuilds on publish, SEO files and edge redirects.

> Markdown version of https://kanorio.com/en/developers/guides/astro. Append `.md` to any developer docs URL for this format. Index: https://kanorio.com/llms.txt · MCP: https://app.kanorio.com/api/mcp

Astro ships no JavaScript by default, which makes it a good fit for brand sites and blogs. Read Kanorio content with `fetch` in the component frontmatter, at build time for static sites or per request with a server adapter.

## 1. Environment variable

```bash
# .env
PUBLIC_KANORIO_SITE_URL="https://s-xxxxxxxxxxxx.kanorio.com"
```

Use the permanent system URL from [Site settings › Developer](https://app.kanorio.com/settings/developer).

## 2. List a collection

```astro
---
// src/pages/projects.astro
const SITE_URL = import.meta.env.PUBLIC_KANORIO_SITE_URL;
const res = await fetch(`${SITE_URL}/api/v1/collections/projects/items?sort=-publishedAt&limit=20`);
const { data, assets } = await res.json();
---

<section>
  <h1>Projects</h1>
  {data.map((item) => {
    const cover = assets[item.fieldData.cover];
    return (
      <article>
        {cover && <img src={cover.url} alt={cover.alt ?? ""} width={cover.width} height={cover.height} loading="lazy" />}
        <h2>{item.fieldData.title}</h2>
        <p>{item.fieldData.summary}</p>
      </article>
    );
  })}
</section>
```

## 3. Blog posts

For a static build, `getStaticPaths` walks every page of the blog with `nextCursor`:

```astro
---
// src/pages/blog/[slug].astro
const SITE_URL = import.meta.env.PUBLIC_KANORIO_SITE_URL;

export async function getStaticPaths() {
  const siteUrl = import.meta.env.PUBLIC_KANORIO_SITE_URL;
  const slugs = [];
  let cursor = null;
  do {
    const url = new URL(`${siteUrl}/api/v1/collections/blog/items`);
    url.searchParams.set("fields", "title");
    url.searchParams.set("limit", "100");
    if (cursor) url.searchParams.set("cursor", cursor);
    const page = await (await fetch(url)).json();
    slugs.push(...page.data.map((post) => post.slug));
    cursor = page.hasMore ? page.nextCursor : null;
  } while (cursor);
  return slugs.map((slug) => ({ params: { slug } }));
}

const { slug } = Astro.params;
const res = await fetch(`${SITE_URL}/api/v1/collections/blog/items/${encodeURIComponent(slug)}?expand=authors,categories&formats=html`);
if (!res.ok) return Astro.redirect("/404");
const { item, assets } = await res.json();
const cover = item.fieldData.cover_image ? assets[item.fieldData.cover_image] : null;
---

<article>
  <h1>{item.fieldData.title}</h1>
  {cover && <img src={cover.url} alt={cover.alt ?? ""} />}
  {item.toc?.length > 0 && (
    <nav aria-label="Contents">
      <ul>{item.toc.map((h) => <li data-level={h.level}><a href={`#${h.id}`}>{h.label}</a></li>)}</ul>
    </nav>
  )}
  <div class="prose" set:html={item.contentHtml} />
</article>
```

## 4. Forms and updates

- **Forms.** Use `<kanorio-form>` from Elements, or the challenge and submit endpoints described in [Forms](https://kanorio.com/en/developers/guides/forms). Add your domain to the allowed origins.
- **Static builds.** Create a deploy hook on your host and add it as a webhook under [Site settings › Webhooks](https://app.kanorio.com/settings/webhooks), subscribed to the collection and page events. Every publish triggers a rebuild.
- **Server rendering.** With `@astrojs/cloudflare` or `@astrojs/node`, read on each request and cache by the `X-Kanorio-Cache-Tags` response header; a webhook handler built with `createRevalidateHandler` purges the tags in `data.cacheTags` (the same vocabulary, see [Webhooks](https://kanorio.com/en/developers/webhooks#refresh-your-front-ends-cache)).

## 5. SEO files

Astro has no proxy rewrites, and redirects would send crawlers to another domain. Serve the files from endpoints instead. `seoRewrites` returns the source URL for each path:

```ts
// src/lib/kanorio-seo.ts
import { seoRewrites } from "@kanorio/sdk";

const targets = seoRewrites({ siteUrl: import.meta.env.PUBLIC_KANORIO_SITE_URL, framework: "astro" });

export async function proxySeoFile(path: string): Promise<Response> {
  const res = await fetch(targets[path]);
  return new Response(res.body, {
    status: res.status,
    headers: { "Content-Type": res.headers.get("Content-Type") ?? "text/plain; charset=utf-8" },
  });
}
```

```ts
// src/pages/robots.txt.ts, and the same for sitemap.xml, llms.txt, llms-full.txt and feed.xml
import { proxySeoFile } from "../lib/kanorio-seo";

export const GET = () => proxySeoFile("/robots.txt");
```

Add JSON-LD to each page with `fetchDeliveryJsonLd`:

```astro
---
import { fetchDeliveryJsonLd } from "@kanorio/sdk";

const jsonLd = await fetchDeliveryJsonLd({ siteUrl: import.meta.env.PUBLIC_KANORIO_SITE_URL, path: Astro.url.pathname });
---
{jsonLd && <script type="application/ld+json" set:html={jsonLd.scriptJson} />}
```

## 6. Redirects and crawler rules

With a server adapter, apply the dashboard's redirects and AI crawler rules, and serve the IndexNow key file, in middleware:

```ts
// src/middleware.ts
import { defineMiddleware } from "astro:middleware";
import { createKanorioMiddleware } from "@kanorio/sdk/edge";

const kanorioEdge = createKanorioMiddleware({ siteUrl: import.meta.env.PUBLIC_KANORIO_SITE_URL });

export const onRequest = defineMiddleware(async (context, next) => {
  const ctx = context.locals.runtime?.ctx; // Cloudflare adapter only
  const response = await kanorioEdge.handleRequest(context.request, {
    waitUntil: ctx ? (promise) => ctx.waitUntil(promise) : undefined,
  });
  return response ?? next();
});
```

Static builds cannot run middleware. Configure redirects on your host, and forward `/{key}.txt` to `https://{site}/api/v1/seo/indexnow-key.txt`. The middleware matches whole paths only; add wildcard redirects to `redirects` in `astro.config`.

## 7. Analytics

Load the Elements script once in your layout and add the analytics element:

```html
<script type="module" src="https://cdn.kanorio.com/elements/v1/kanorio-elements.js"></script>
<kanorio-analytics site-url="https://s-xxxxxxxxxxxx.kanorio.com"></kanorio-analytics>
```

Pageviews, referrers, campaign parameters and visits from AI assistants then appear in the dashboard's analytics.