change some files

app/api/cdn/upload/route.ts

@@ -0,0 +1,93 @@
+import { NextResponse } from "next/server";
+
+export const runtime = "nodejs";
+
+export async function POST(req: Request) {
+  try {
+    // 1) env check
+    const uploadUrl = process.env.CDN_UPLOAD_URL;
+    const token = process.env.CDN_SERVICE_TOKEN;
+
+    if (!uploadUrl) {
+      return NextResponse.json(
+        { error: "Missing env: CDN_UPLOAD_URL" },
+        { status: 500 },
+      );
+    }
+    if (!token) {
+      return NextResponse.json(
+        { error: "Missing env: CDN_SERVICE_TOKEN" },
+        { status: 500 },
+      );
+    }
+
+    // 2) read multipart
+    const incoming = await req.formData();
+    const file = incoming.get("file");
+
+    if (!file) {
+      return NextResponse.json(
+        { error: "file is required (field name must be 'file')" },
+        { status: 400 },
+      );
+    }
+
+    // In Next route handlers, this should be a Web File
+    if (!(file instanceof File)) {
+      return NextResponse.json(
+        {
+          error: "Invalid file type",
+          receivedType: Object.prototype.toString.call(file),
+        },
+        { status: 400 },
+      );
+    }
+
+    // 3) forward to CDN
+    const fd = new FormData();
+    fd.append("file", file, file.name);
+
+    const cdnRes = await fetch(uploadUrl, {
+      method: "POST",
+      headers: {
+        Authorization: `Bearer ${token}`,
+      },
+      body: fd,
+    });
+
+    const contentType = cdnRes.headers.get("content-type") || "";
+    const isJson = contentType.includes("application/json");
+
+    const payload = isJson ? await cdnRes.json() : await cdnRes.text();
+
+    if (!cdnRes.ok) {
+      return NextResponse.json(
+        {
+          error: "CDN upload failed",
+          status: cdnRes.status,
+          payload,
+        },
+        { status: cdnRes.status },
+      );
+    }
+
+    return NextResponse.json(payload);
+  } catch (e: unknown) {
+    // 4) robust error serialization (no toString on undefined)
+    let details = "unknown error";
+    if (e instanceof Error) details = e.message;
+    else if (typeof e === "string") details = e;
+    else {
+      try {
+        details = JSON.stringify(e);
+      } catch {
+        details = "non-serializable error";
+      }
+    }
+
+    return NextResponse.json(
+      { error: "Unexpected error", details },
+      { status: 500 },
+    );
+  }
+}