feat(route/railway): add Railway blog configuration (#19678)

* feat(route/railway): add Railway blog configuration

* style: auto format

* feat(route/railway): update namespace for Railway Blog

* fix(route/railway): correct namespace name and URL for Railway

* Update lib/routes/railway/index.ts

Co-authored-by: Tony <TonyRL@users.noreply.github.com>

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

lib/routes/railway/index.ts

@@ -0,0 +1,73 @@
+import { Route, DataItem } from '@/types';
+
+import cache from '@/utils/cache';
+import { load } from 'cheerio';
+import { parseDate } from '@/utils/parse-date';
+import ofetch from '@/utils/ofetch';
+import { Context } from 'hono';
+
+export const route: Route = {
+    path: '/blog',
+    categories: ['blog'],
+    example: '/railway/blog',
+    url: 'blog.railway.com',
+    name: 'Blog',
+    maintainers: ['jihuayu'],
+    handler,
+};
+
+async function handler(ctx: Context) {
+    const limit = Number.parseInt(ctx.req.query('limit') || '10');
+
+    const items = await fetchArticles(limit);
+
+    return {
+        title: 'Railway articles',
+        link: 'https://blog.railway.com',
+        item: items,
+    };
+}
+
+export const fetchArticles = async (limit: number): Promise<DataItem[]> => {
+    const page = await ofetch('https://blog.railway.com/rss.xml', {
+        responseType: 'text',
+    });
+
+    const $ = load(page, { xml: true });
+
+    return Promise.all(
+        $('item')
+            .toArray()
+            .slice(0, limit)
+            .map<Promise<DataItem>>((element) => {
+                const id = $(element).find('guid').text();
+
+                return cache.tryGet(`railway:blogs:${id}`, async () => {
+                    const title = $(element).find('title').text();
+                    const pubDate = $(element).find('pubDate').text();
+                    const link = $(element).find('link').text();
+
+                    const { content } = await fetchArticleDetails(link);
+
+                    return {
+                        guid: id,
+                        title,
+                        link,
+                        pubDate: parseDate(pubDate),
+                        description: content,
+                    } as DataItem;
+                }) as Promise<DataItem>;
+            })
+    );
+};
+
+export const fetchArticleDetails = async (url: string) => {
+    const page = await ofetch(url);
+    const $ = load(page);
+
+    const $article = $('article > section ');
+
+    return {
+        content: $article.html() ?? undefined,
+    };
+};

lib/routes/railway/namespace.ts

@@ -0,0 +1,8 @@
+import type { Namespace } from '@/types';
+
+export const namespace: Namespace = {
+    name: 'Railway',
+    url: 'railway.com',
+    description: '',
+    lang: 'en',
+};