Refactor json/xml code

app/feed.json/route.ts

@@ -1,11 +1,7 @@
 import { getPhotosCached } from '@/photo/cache';
-import {
-  BASE_URL,
-  SITE_FEEDS_ENABLED,
-  META_TITLE,
-} from '@/app/config';
+import { SITE_FEEDS_ENABLED } from '@/app/config';
 import { FEED_PHOTO_REQUEST_LIMIT } from '@/feed';
-import { formatPhotoForFeedJson } from '@/feed/json';
+import { formatFeedJson } from '@/feed/json';
 
 // Cache for 24 hours
 export const revalidate = 86_400;
@@ -16,13 +12,7 @@ export async function GET() {
       limit: FEED_PHOTO_REQUEST_LIMIT,
       sortBy: 'createdAt',
     });
-    return Response.json({
-      meta: {
-        title: META_TITLE,
-        url: BASE_URL,
-      },
-      photos: photos.map(formatPhotoForFeedJson),
-    });
+    return Response.json(formatFeedJson(photos));
   } else {
     return new Response('Feed disabled', { status: 404 });
   }

app/rss.xml/route.ts

@@ -1,13 +1,7 @@
 import { getPhotosCached } from '@/photo/cache';
-import {
-  BASE_URL,
-  META_DESCRIPTION,
-  META_TITLE,
-  SITE_FEEDS_ENABLED,
-} from '@/app/config';
+import { SITE_FEEDS_ENABLED } from '@/app/config';
 import { FEED_PHOTO_REQUEST_LIMIT } from '@/feed';
-import { createRssItems } from '@/feed/rss';
-import { ABSOLUTE_PATH_FOR_RSS_XML } from '@/app/paths';
+import { formatFeedRss } from '@/feed/rss';
 
 // Cache for 24 hours
 export const revalidate = 86_400;
@@ -19,28 +13,9 @@ export async function GET() {
       sortBy: 'createdAt',
     });
 
-    const items = createRssItems(photos);
-
-    return new Response(`<?xml version="1.0" encoding="UTF-8"?>
-      <rss version="2.0"
-        xmlns:content="http://purl.org/rss/1.0/modules/content/"
-        xmlns:atom="http://www.w3.org/2005/Atom"
-        xmlns:media="http://search.yahoo.com/mrss/"
-      >
-        <channel>
-          <title>${META_TITLE}</title>
-          <atom:link
-            href="${ABSOLUTE_PATH_FOR_RSS_XML}"
-            rel="self"
-            type="application/rss+xml"
-          />
-          <link>${BASE_URL}</link>
-          <description>${META_DESCRIPTION}</description>
-          ${items.join('\n')}
-        </channel>
-      </rss>
-    `,
-    { headers: { 'Content-Type': 'text/xml' } },
+    return new Response(
+      formatFeedRss(photos),
+      { headers: { 'Content-Type': 'text/xml' } },
     );
   } else {
     return new Response('Feed disabled', { status: 404 });

src/feed/json.ts

@@ -9,6 +9,8 @@ import {
 } from '.';
 import { formatDateFromPostgresString } from '@/utility/date';
 import { Photo } from '@/photo';
+import { BASE_URL } from '@/app/config';
+import { META_TITLE } from '@/app/config';
 
 interface FeedPhotoJson {
   id: string
@@ -21,7 +23,7 @@ interface FeedPhotoJson {
   src: Record<'small' | 'medium' | 'large', FeedMedia>
 }
 
-export const formatPhotoForFeedJson = (photo: Photo): FeedPhotoJson => ({
+const formatPhotoForFeedJson = (photo: Photo): FeedPhotoJson => ({
   ...getCoreFeedFields(photo),
   url: absolutePathForPhoto({ photo }),
   ...photo.make && { make: photo.make },
@@ -34,3 +36,11 @@ export const formatPhotoForFeedJson = (photo: Photo): FeedPhotoJson => ({
     large: generateFeedMedia(photo, FEED_PHOTO_WIDTH_LARGE),
   },
 });
+
+export const formatFeedJson = (photos: Photo[]) => ({
+  meta: {
+    title: META_TITLE,
+    url: BASE_URL,
+  },
+  photos: photos.map(formatPhotoForFeedJson),
+});

src/feed/rss.ts

@@ -6,9 +6,10 @@ import {
   generateFeedMedia,
   getCoreFeedFields,
 } from '.';
-import { absolutePathForPhoto } from '@/app/paths';
+import { ABSOLUTE_PATH_FOR_RSS_XML, absolutePathForPhoto } from '@/app/paths';
 import { formatDate } from '@/utility/date';
 import { formatStringForXml } from '@/utility/string';
+import { BASE_URL, META_DESCRIPTION, META_TITLE } from '@/app/config';
 
 interface FeedPhotoRss {
   id: string
@@ -30,11 +31,12 @@ const formatPhotoForFeedRss = (photo: Photo): FeedPhotoRss => ({
 });
 
 const feedPhotoToXml = (photo: FeedPhotoRss): string => {
-  const formattedDate = formatDate({ date: photo.pubDate, length: 'rss' });
   return `<item>
     <title>${photo.title}</title>
     <link>${photo.link}</link>
-    <pubDate>${formattedDate}</pubDate>
+    <pubDate>
+      ${formatDate({ date: photo.pubDate, length: 'rss' })}
+    </pubDate>
     <guid isPermaLink="true">${photo.link}</guid>
     ${photo.description
     ? `<description><![CDATA[${photo.description}]]></description>`
@@ -55,5 +57,22 @@ const feedPhotoToXml = (photo: FeedPhotoRss): string => {
   </item>`;
 };
 
-export const createRssItems = (photos: Photo[]) =>
-  photos.map(formatPhotoForFeedRss).map(feedPhotoToXml);
+export const formatFeedRss = (photos: Photo[]) =>
+  `<?xml version="1.0" encoding="UTF-8"?>
+   <rss version="2.0"
+     xmlns:content="http://purl.org/rss/1.0/modules/content/"
+     xmlns:atom="http://www.w3.org/2005/Atom"
+     xmlns:media="http://search.yahoo.com/mrss/"
+   >
+    <channel>
+      <title>${META_TITLE}</title>
+      <atom:link
+        href="${ABSOLUTE_PATH_FOR_RSS_XML}"
+        rel="self"
+        type="application/rss+xml"
+      />
+      <link>${BASE_URL}</link>
+      <description>${META_DESCRIPTION}</description>
+      ${photos.map(formatPhotoForFeedRss).map(feedPhotoToXml).join('\n')}
+    </channel>
+  </rss>`;