diff --git a/backend/server/dist/getSandboxFiles.js b/backend/server/dist/getSandboxFiles.js
new file mode 100644
index 0000000..5eec879
--- /dev/null
+++ b/backend/server/dist/getSandboxFiles.js
@@ -0,0 +1,57 @@
+"use strict";
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const getSandboxFiles = (id) => __awaiter(void 0, void 0, void 0, function* () {
+    const sandboxRes = yield fetch(`https://storage.ishaan1013.workers.dev/api?sandboxId=${id}`);
+    const sandboxData = yield sandboxRes.json();
+    const paths = sandboxData.objects.map((obj) => obj.key);
+    return processFiles(paths, id);
+});
+const processFiles = (paths, id) => {
+    const root = { id: "/", type: "folder", name: "/", children: [] };
+    paths.forEach((path) => {
+        const allParts = path.split("/");
+        if (allParts[1] !== id) {
+            console.log("invalid path!!!!");
+            return;
+        }
+        const parts = allParts.slice(2);
+        let current = root;
+        for (let i = 0; i < parts.length; i++) {
+            const part = parts[i];
+            const isFile = i === parts.length - 1 && part.includes(".");
+            const existing = current.children.find((child) => child.name === part);
+            if (existing) {
+                if (!isFile) {
+                    current = existing;
+                }
+            }
+            else {
+                if (isFile) {
+                    const file = { id: path, type: "file", name: part };
+                    current.children.push(file);
+                }
+                else {
+                    const folder = {
+                        id: path,
+                        type: "folder",
+                        name: part,
+                        children: [],
+                    };
+                    current.children.push(folder);
+                    current = folder;
+                }
+            }
+        }
+    });
+    return root.children;
+};
+exports.default = getSandboxFiles;
diff --git a/backend/server/dist/index.js b/backend/server/dist/index.js
index 71a67f8..d8eaa0f 100644
--- a/backend/server/dist/index.js
+++ b/backend/server/dist/index.js
@@ -17,6 +17,7 @@ const dotenv_1 = __importDefault(require("dotenv"));
 const http_1 = require("http");
 const socket_io_1 = require("socket.io");
 const zod_1 = require("zod");
+const getSandboxFiles_1 = __importDefault(require("./getSandboxFiles"));
 dotenv_1.default.config();
 const app = (0, express_1.default)();
 const port = process.env.PORT || 4000;
@@ -43,8 +44,8 @@ io.use((socket, next) => __awaiter(void 0, void 0, void 0, function* () {
         next(new Error("Invalid request."));
         return;
     }
-    const query = parseQuery.data;
-    const dbUser = yield fetch(`http://localhost:8787/api/user?id=${query.userId}`);
+    const { sandboxId, userId, type } = parseQuery.data;
+    const dbUser = yield fetch(`http://localhost:8787/api/user?id=${userId}`);
     const dbUserJSON = (yield dbUser.json());
     console.log("dbUserJSON:", dbUserJSON);
     if (!dbUserJSON) {
@@ -52,29 +53,23 @@ io.use((socket, next) => __awaiter(void 0, void 0, void 0, function* () {
         next(new Error("DB error."));
         return;
     }
-    const sandbox = dbUserJSON.sandbox.find((s) => s.id === query.sandboxId);
+    const sandbox = dbUserJSON.sandbox.find((s) => s.id === sandboxId);
     if (!sandbox) {
         console.log("Invalid credentials.");
         next(new Error("Invalid credentials."));
         return;
     }
-    const data = {
-        userId: query.userId,
-        sandboxId: query.sandboxId,
-        type: query.type,
-        init: sandbox.init,
+    socket.data = {
+        id: sandboxId,
+        type,
+        userId,
     };
-    socket.data = data;
     next();
 }));
 io.on("connection", (socket) => __awaiter(void 0, void 0, void 0, function* () {
     const data = socket.data;
-    console.log("init:", data.init);
-    if (!data.init) {
-        // const dbUser = await fetch(
-        //   `http://localhost:8787/sandbox/${data.sandboxId}/init`
-        // )
-    }
+    const sandboxFiles = yield (0, getSandboxFiles_1.default)(data.id);
+    // fetch all file data TODO
     // socket.emit("loaded", {
     //     rootContent: await fetchDir("/workspace", "")
     // });
diff --git a/backend/server/src/getSandboxFiles.ts b/backend/server/src/getSandboxFiles.ts
new file mode 100644
index 0000000..745bad6
--- /dev/null
+++ b/backend/server/src/getSandboxFiles.ts
@@ -0,0 +1,56 @@
+import { R2Files, Sandbox, TFile, TFolder, User } from "./types"
+
+const getSandboxFiles = async (id: string) => {
+  const sandboxRes = await fetch(
+    `https://storage.ishaan1013.workers.dev/api?sandboxId=${id}`
+  )
+  const sandboxData: R2Files = await sandboxRes.json()
+
+  const paths = sandboxData.objects.map((obj) => obj.key)
+  return processFiles(paths, id)
+}
+
+const processFiles = (paths: string[], id: string): (TFile | TFolder)[] => {
+  const root: TFolder = { id: "/", type: "folder", name: "/", children: [] }
+
+  paths.forEach((path) => {
+    const allParts = path.split("/")
+    if (allParts[1] !== id) {
+      console.log("invalid path!!!!")
+      return
+    }
+
+    const parts = allParts.slice(2)
+    let current: TFolder = root
+
+    for (let i = 0; i < parts.length; i++) {
+      const part = parts[i]
+      const isFile = i === parts.length - 1 && part.includes(".")
+      const existing = current.children.find((child) => child.name === part)
+
+      if (existing) {
+        if (!isFile) {
+          current = existing as TFolder
+        }
+      } else {
+        if (isFile) {
+          const file: TFile = { id: path, type: "file", name: part }
+          current.children.push(file)
+        } else {
+          const folder: TFolder = {
+            id: path,
+            type: "folder",
+            name: part,
+            children: [],
+          }
+          current.children.push(folder)
+          current = folder
+        }
+      }
+    }
+  })
+
+  return root.children
+}
+
+export default getSandboxFiles
diff --git a/backend/server/src/index.ts b/backend/server/src/index.ts
index 3a7809d..464e2c3 100644
--- a/backend/server/src/index.ts
+++ b/backend/server/src/index.ts
@@ -5,6 +5,7 @@ import { Server } from "socket.io"
 
 import { z } from "zod"
 import { User } from "./types"
+import getSandboxFiles from "./getSandboxFiles"
 
 dotenv.config()
 
@@ -39,11 +40,9 @@ io.use(async (socket, next) => {
     return
   }
 
-  const query = parseQuery.data
+  const { sandboxId, userId, type } = parseQuery.data
 
-  const dbUser = await fetch(
-    `http://localhost:8787/api/user?id=${query.userId}`
-  )
+  const dbUser = await fetch(`http://localhost:8787/api/user?id=${userId}`)
   const dbUserJSON = (await dbUser.json()) as User
 
   console.log("dbUserJSON:", dbUserJSON)
@@ -54,7 +53,7 @@ io.use(async (socket, next) => {
     return
   }
 
-  const sandbox = dbUserJSON.sandbox.find((s) => s.id === query.sandboxId)
+  const sandbox = dbUserJSON.sandbox.find((s) => s.id === sandboxId)
 
   if (!sandbox) {
     console.log("Invalid credentials.")
@@ -62,33 +61,25 @@ io.use(async (socket, next) => {
     return
   }
 
-  const data = {
-    userId: query.userId,
-    sandboxId: query.sandboxId,
-    type: query.type,
-    init: sandbox.init,
+  socket.data = {
+    id: sandboxId,
+    type,
+    userId,
   }
 
-  socket.data = data
-
   next()
 })
 
 io.on("connection", async (socket) => {
   const data = socket.data as {
     userId: string
-    sandboxId: string
+    id: string
     type: "node" | "react"
-    init: boolean
   }
 
-  console.log("init:", data.init)
+  const sandboxFiles = await getSandboxFiles(data.id)
 
-  if (!data.init) {
-    // const dbUser = await fetch(
-    //   `http://localhost:8787/sandbox/${data.sandboxId}/init`
-    // )
-  }
+  // fetch all file data TODO
 
   // socket.emit("loaded", {
   //     rootContent: await fetchDir("/workspace", "")
diff --git a/backend/server/src/types.ts b/backend/server/src/types.ts
index fc2851e..684c236 100644
--- a/backend/server/src/types.ts
+++ b/backend/server/src/types.ts
@@ -11,7 +11,35 @@ export type Sandbox = {
   id: string
   name: string
   type: "react" | "node"
-  init: boolean
-  bucket: string | null
   userId: string
 }
+
+export type TFolder = {
+  id: string
+  type: "folder"
+  name: string
+  children: (TFile | TFolder)[]
+}
+
+export type TFile = {
+  id: string
+  type: "file"
+  name: string
+}
+
+export type R2Files = {
+  objects: R2FileData[]
+  truncated: boolean
+  delimitedPrefixes: any[]
+}
+
+export type R2FileData = {
+  storageClass: string
+  uploaded: string
+  checksums: any
+  httpEtag: string
+  etag: string
+  size: number
+  version: string
+  key: string
+}
diff --git a/frontend/lib/types.ts b/frontend/lib/types.ts
index bc993be..82a3497 100644
--- a/frontend/lib/types.ts
+++ b/frontend/lib/types.ts
@@ -11,8 +11,6 @@ export type Sandbox = {
   id: string
   name: string
   type: "react" | "node"
-  init: boolean
-  bucket: string | null
   userId: string
 }