blog.devcomp.xyz/src/pages/rss.xml.ts

import { getCollection } from "astro:content";
import { siteConfig } from "@/config";
import rss from "@astrojs/rss";
import MarkdownIt from "markdown-it";
import sanitizeHtml from "sanitize-html";
const parser = new MarkdownIt();

export async function GET(context: any) {
  const blog = await getCollection("posts");
  return rss({
    title: siteConfig.title,
    description: siteConfig.subtitle || "No description",
    site: context.site,
    items: blog.map(post => ({
      title: post.data.title,
      pubDate: post.data.published,
      description: post.data.description,
      link: `/posts/${post.slug}/`,
      content: sanitizeHtml(parser.render(post.body), {
        allowedTags: sanitizeHtml.defaults.allowedTags.concat(["img"]),
      }),
    })),
    customData: `<language>${siteConfig.lang}</language>`,
  });
}