created atom feed

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# local env files
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local

index.js

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+const express = require("express");
+const app = express();
+const { createClient } = require("contentful");
+const marked = require("marked");
+
+marked.setOptions({
+  renderer: new marked.Renderer(),
+  pedantic: false,
+  gfm: true,
+  breaks: false,
+  sanitize: false,
+  smartLists: true,
+  smartypants: false,
+  xhtml: true,
+});
+
+app.use(express.json());
+
+const client = createClient({
+  space: process.env.CONTENTFUL_SPACE_ID,
+  accessToken: process.env.CONTENTFUL_ACCESS_KEY,
+});
+
+const posts = async () => {
+  try {
+    let res = await client.getEntries({ content_type: "rehber" });
+    return res;
+  } catch (err) {
+    console.log(err);
+  }
+};
+
+const fetchPosts = async () => {
+  let res = await posts();
+  return res.items;
+};
+
+async function buildRssItems() {
+  const items = await fetchPosts();
+  return items
+    .map((item) => {
+      const text = `${marked(item.fields.rehber)}`;
+      const summary = item.fields.description;
+      const link = `https://teknolojirehberleri.xyz/rehber/${item.fields.slug}`;
+      const title = item.fields.title;
+
+      return `
+        <entry>
+        <title>${title}</title>
+	<link href="${link}" />
+        <id>${link}</id>
+        <updated>${item.sys.updatedAt}</updated>
+        <summary>${summary}</summary>
+	<content type="xhtml">${text}</content>
+	</entry>
+        `;
+    })
+    .join("");
+}
+
+app.get("/rss", async (req, res) => {
+  const rssFeed = `<?xml version="1.0" encoding="utf-8"?>
+  <feed xmlns="http://www.w3.org/2005/Atom">
+    <title>teknolojirehberleri.xyz</title>
+    <link href="https://teknolojirehberleri.xyz" />
+    ${await buildRssItems()}
+  </feed>`;
+
+  res.type("application/atom+xml");
+  res.send(rssFeed);
+});
+
+const port = process.env.port || 3002;
+app.listen(port, () => console.log(`Listening on port ${port}...`));

package.json

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+{
+  "name": "fetch-contentful-rss",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "node index.js",
+    "devstart": "nodemon index.js"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "contentful": "^8.5.0",
+    "express": "^4.17.1",
+    "marked": "^3.0.0"
+  }
+}