[Docs Site] Add product and area specific changelog feeds (#20990)

Author: KianNH

src/pages/changelog/rss/[area].xml.ts

@@ -0,0 +1,61 @@
+import rss from "@astrojs/rss";
+import { getCollection } from "astro:content";
+import { getChangelogs, getRSSItems } from "~/util/changelog";
+import { slug } from "github-slugger";
+
+import type {
+	APIRoute,
+	InferGetStaticPropsType,
+	InferGetStaticParamsType,
+	GetStaticPaths,
+} from "astro";
+
+export const getStaticPaths = (async () => {
+	const products = await getCollection("products", (e) =>
+		Boolean(e.data.product.group),
+	);
+
+	const areas = Object.entries(
+		Object.groupBy(products, (p) => p.data.product.group),
+	);
+
+	return areas.map(([area, products]) => {
+		if (!products)
+			throw new Error(`[Changelog] No products attributed to "${area}"`);
+
+		return {
+			params: {
+				area: slug(area),
+			},
+			props: {
+				title: area,
+				products,
+			},
+		};
+	});
+}) satisfies GetStaticPaths;
+
+type Props = InferGetStaticPropsType<typeof getStaticPaths>;
+type Params = InferGetStaticParamsType<typeof getStaticPaths>;
+
+export const GET: APIRoute<Props, Params> = async ({ props, locals }) => {
+	const { title, products } = props;
+
+	const notes = await getChangelogs({
+		filter: (e) => {
+			return e.data.products.some((x) => products.some((y) => x.id === y.id));
+		},
+	});
+
+	const items = await getRSSItems({
+		notes,
+		locals,
+	});
+
+	return rss({
+		title: `Cloudflare changelogs | ${title}`,
+		description: `Cloudflare changelogs for ${title} products`,
+		site: "https://developers.cloudflare.com/changelog/",
+		items,
+	});
+};

src/pages/changelog/rss/[product].xml.ts

@@ -0,0 +1,54 @@
+import rss from "@astrojs/rss";
+import { getCollection } from "astro:content";
+import { getChangelogs, getRSSItems } from "~/util/changelog";
+
+import type {
+	APIRoute,
+	InferGetStaticPropsType,
+	InferGetStaticParamsType,
+	GetStaticPaths,
+} from "astro";
+
+export const getStaticPaths = (async () => {
+	const products = await getCollection("products");
+
+	return products.map((product) => {
+		return {
+			params: {
+				product: product.id,
+			},
+			props: {
+				product,
+			},
+		};
+	});
+}) satisfies GetStaticPaths;
+
+type Props = InferGetStaticPropsType<typeof getStaticPaths>;
+type Params = InferGetStaticParamsType<typeof getStaticPaths>;
+
+export const GET: APIRoute<Props, Params> = async ({
+	params,
+	props,
+	locals,
+}) => {
+	const { data } = props.product;
+
+	const notes = await getChangelogs({
+		filter: (e) => {
+			return e.data.products.some(({ id }) => id === params.product);
+		},
+	});
+
+	const items = await getRSSItems({
+		notes,
+		locals,
+	});
+
+	return rss({
+		title: `Cloudflare changelogs | ${data.name}`,
+		description: `Cloudflare changelogs for ${data.name}`,
+		site: "https://developers.cloudflare.com/changelog/",
+		items,
+	});
+};