basic dynamic sitemap implementation

src/routes/sitemap.txt.js

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+import Article from '../models/article.js';
+import Category from '../models/category.js';
+
+/**
+ * generates a simple .txt sitemap with all articles and categories.
+ */
+export async function get(req, res)
+{
+    // include static, publicly visible pages here
+    let routes = [
+        'https://howfeed.biz/',
+        'https://howfeed.biz/contact',
+        'https://howfeed.biz/search',
+    ];
+
+    const articles = await Article.find();
+    const categories = await Category.find();
+    for (let article of articles) {
+        routes.push(`https://howfeed.biz/a/${article.slug}`);
+    }
+    for (let category of categories) {
+        routes.push(`https://howfeed.biz/c/${category.slug}`);
+    }
+
+    res.writeHead(200, {
+        'Content-Type': 'text/plain'
+    });
+    res.end(routes.join('\n'));
+}