✨ refactor: update environment variable usage and add caching

app/api/email/route.tsx

@@ -11,8 +11,8 @@ export async function POST(request: NextRequest) {
     };
     const { email, name, message } = body;
 
-    const user = process.env.NEXT_PUBLIC_MY_EMAIL ?? "";
-    const pass = process.env.NEXT_PUBLIC_MY_PASSWORD ?? "";
+    const user = process.env.MY_EMAIL ?? "";
+    const pass = process.env.MY_PASSWORD ?? "";
 
     if (!user || !pass) {
         console.error("Missing email/password environment variables");

app/api/fetchAllProjects/route.tsx

@@ -1,25 +1,54 @@
 import { NextResponse } from "next/server";
+import http from "http";
+import fetch from "node-fetch";
+import NodeCache from "node-cache";
 
 export const runtime = "nodejs"; // Force Node runtime
 
-const GHOST_API_URL = process.env.NEXT_PUBLIC_GHOST_API_URL;
-const GHOST_API_KEY = process.env.NEXT_PUBLIC_GHOST_API_KEY;
+const GHOST_API_URL = process.env.GHOST_API_URL;
+const GHOST_API_KEY = process.env.GHOST_API_KEY;
+const cache = new NodeCache({ stdTTL: 300 }); // Cache für 5 Minuten
+
+type GhostPost = {
+  slug: string;
+  id: string;
+  title: string;
+  feature_image: string;
+  visibility: string;
+  published_at: string;
+  updated_at: string;
+  html: string;
+  reading_time: number;
+  meta_description: string;
+};
+
+type GhostPostsResponse = {
+  posts: Array<GhostPost>;
+};
 
 export async function GET() {
+  const cacheKey = "ghostPosts";
+  const cachedPosts = cache.get<GhostPostsResponse>(cacheKey);
+
+  if (cachedPosts) {
+    return NextResponse.json(cachedPosts);
+  }
+
   try {
+    const agent = new http.Agent({ keepAlive: true });
     const response = await fetch(
       `${GHOST_API_URL}/ghost/api/content/posts/?key=${GHOST_API_KEY}&limit=all`,
+      { agent: agent as unknown as undefined }
     );
-    if (!response.ok) {
-      console.error(`Failed to fetch posts: ${response.statusText}`);
-      return NextResponse.json([]);
-    }
-    const posts = await response.json();
+    const posts: GhostPostsResponse = await response.json() as GhostPostsResponse;
 
     if (!posts || !posts.posts) {
       console.error("Invalid posts data");
       return NextResponse.json([]);
     }
+
+    cache.set(cacheKey, posts); // Daten im Cache speichern
+
     return NextResponse.json(posts);
   } catch (error) {
     console.error("Failed to fetch posts from Ghost:", error);

app/api/fetchProject/route.tsx

@@ -2,8 +2,8 @@ import { NextResponse } from "next/server";
 
 export const runtime = "nodejs"; // Force Node runtime
 
-const GHOST_API_URL = process.env.NEXT_PUBLIC_GHOST_API_URL;
-const GHOST_API_KEY = process.env.NEXT_PUBLIC_GHOST_API_KEY;
+const GHOST_API_URL = process.env.GHOST_API_URL;
+const GHOST_API_KEY = process.env.GHOST_API_KEY;
 
 export async function GET(request: Request) {
   const { searchParams } = new URL(request.url);