Complete Code Push

server.js

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+import express from 'express';
+import path from 'path';
+import { fileURLToPath } from 'url';
+import dotenv from 'dotenv';
+import cors from "cors";
+import { S3Client, ListObjectsV2Command } from "@aws-sdk/client-s3";
+
+// Load environment variables
+dotenv.config();
+
+// Set up __dirname in ESM
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+const app = express();
+const port = process.env.PORT || 3000;
+
+app.use(cors());
+
+const s3 = new S3Client({
+  region: "auto",
+  endpoint: process.env.R2_ENDPOINT,
+  credentials: {
+    accessKeyId: process.env.R2_ACCESS_KEY,
+    secretAccessKey: process.env.R2_SECRET_KEY,
+  },
+});
+
+app.get("/api/list", async (req, res) => {
+  const prefix = req.query.prefix || "";
+  const token = req.query.token;
+  const search = req.query.search?.toLowerCase();
+
+  try {
+    const response = await s3.send(
+      new ListObjectsV2Command({
+        Bucket: process.env.R2_BUCKET,
+        Prefix: prefix,
+        ContinuationToken: token,
+        Delimiter: "/",
+      })
+    );
+
+    const filteredFolders = (response.CommonPrefixes || []).filter(
+      (p) => !search || p.Prefix.toLowerCase().includes(search)
+    );
+
+    const filteredFiles = (response.Contents || [])
+      .filter((obj) => obj.Size > 0)
+      .filter((obj) => !search || obj.Key.toLowerCase().includes(search));
+
+    res.json({
+      folders: filteredFolders.map((p) => p.Prefix),
+      files: filteredFiles.map((obj) => ({
+        key: obj.Key,
+        size: obj.Size,
+        lastModified: obj.LastModified,
+      })),
+      nextToken: response.NextContinuationToken || null,
+      isTruncated: response.IsTruncated || false,
+    });
+  } catch (err) {
+    console.error(err);
+    res.status(500).json({ error: "Failed to list objects" });
+  }
+});
+
+// === STATIC FRONTEND ===
+app.use(express.static(path.join(__dirname, 'dist')));
+
+// === Fallback to index.html for client-side routing ===
+app.get('/{*splat}', (req, res) => {
+  res.sendFile(path.join(__dirname, 'dist', 'index.html'));
+});
+
+// === START SERVER ===
+app.listen(port, () => {
+  console.log(`Server running on http://localhost:${port}`);
+});