blog/src/pages/rss.xml.ts

import rss from '@astrojs/rss';
import {siteConfig} from '@/config';
import sanitizeHtml from 'sanitize-html';
import MarkdownIt from 'markdown-it';
import {getSortedPosts} from "@utils/content-utils.ts";
const parser = new MarkdownIt();

export async function GET(context: any) {
  const blog = await getSortedPosts();
  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>`,
  });
}