diff --git a/frontend/app/chat/[id]/page.tsx b/frontend/app/chat/[id]/page.tsx
index 8b59bb55..7eb01776 100644
--- a/frontend/app/chat/[id]/page.tsx
+++ b/frontend/app/chat/[id]/page.tsx
@@ -1,28 +1,20 @@
 import { Separator } from "@/components/ui/separator";
-import { testData } from "../test-data";
 import { Sidebar } from "../sidebar";
 import MessageArea from "../message-area";
-import { getUserId } from "@/app/lib/session";
+import { getCurrentUserId } from "@/app/lib/session";
 import { getUser, getUsers } from "@/app/lib/actions";
 
-//async function getUsers() {
-//  return testData.users;
-//}
-
 export default async function ChatPage({
   params: { id },
 }: {
   params: { id: string };
 }) {
-  const [tmpUsers, currentUserId] = await Promise.all([
+  const [allUsers, currentUserId] = await Promise.all([
     getUsers(),
-    getUserId(),
+    getCurrentUserId(),
   ]);
-  if (!currentUserId) {
-    throw new Error("getUserId error");
-  }
-  const currentUser = await getUser(parseInt(currentUserId));
-  const users = tmpUsers.filter((user) => user.id !== parseInt(currentUserId));
+  const currentUser = await getUser(currentUserId);
+  const users = allUsers.filter((user) => user.id !== currentUserId);
   if (users.length === 0) {
     console.error("No other users exist");
     throw new Error("No other users exist");
diff --git a/frontend/app/chat/page.tsx b/frontend/app/chat/page.tsx
index 138f9b0e..ac82e573 100644
--- a/frontend/app/chat/page.tsx
+++ b/frontend/app/chat/page.tsx
@@ -1,23 +1,14 @@
 import { Separator } from "@/components/ui/separator";
-//import { testData } from "./test-data";
 import { Sidebar } from "./sidebar";
-import MessageArea from "./message-area";
-import { getUserId } from "@/app/lib/session";
 import { getUsers } from "@/app/lib/actions";
-
-//async function getUsers() {
-//  return testData.users;
-//}
+import { getCurrentUserId } from "@/app/lib/session";
 
 export default async function ChatPage() {
-  const [tmpUsers, currentUserId] = await Promise.all([
+  const [allUsers, currentUserId] = await Promise.all([
     getUsers(),
-    getUserId(),
+    getCurrentUserId(),
   ]);
-  if (!currentUserId) {
-    throw new Error("getUserId error");
-  }
-  const users = tmpUsers.filter((user) => user.id !== parseInt(currentUserId));
+  const users = allUsers.filter((user) => user.id !== currentUserId);
   return (
     <>
       <div className="overflow-auto flex-grow flex gap-4 pb-4">
diff --git a/frontend/app/client-auth-provider.tsx b/frontend/app/client-auth-provider.tsx
new file mode 100644
index 00000000..ed491fba
--- /dev/null
+++ b/frontend/app/client-auth-provider.tsx
@@ -0,0 +1,26 @@
+"use client";
+
+import { AuthContext } from "@/app/lib/client-auth";
+
+type User = {
+  id: number;
+  name: string;
+  email: string;
+  avatarURL?: string;
+  createdAt: string;
+};
+
+export type AuthProviderProps = {
+  user?: User;
+  children: React.ReactNode;
+  isLoggedIn: boolean;
+};
+
+export default function AuthProvider({
+  children,
+  user,
+  isLoggedIn,
+}: AuthProviderProps) {
+  const auth = { currentUser: user, isLoggedIn };
+  return <AuthContext.Provider value={auth}>{children}</AuthContext.Provider>;
+}
diff --git a/frontend/app/layout.tsx b/frontend/app/layout.tsx
index dc8ff107..9c1a1db5 100644
--- a/frontend/app/layout.tsx
+++ b/frontend/app/layout.tsx
@@ -2,6 +2,9 @@ import type { Metadata } from "next";
 import { Inter } from "next/font/google";
 import "./globals.css";
 
+import AuthProvider from "./client-auth-provider";
+import { getCurrentUser, isLoggedIn } from "@/app/lib/session";
+
 // components
 import { ThemeProvider } from "@/components/theme-provider";
 import { Toaster } from "@/components/ui/toaster";
@@ -16,11 +19,14 @@ export const metadata: Metadata = {
   description: "Classic Pong game",
 };
 
-export default function RootLayout({
+export default async function RootLayout({
   children,
 }: {
   children: React.ReactNode;
 }) {
+  const isAuthorized = await isLoggedIn(); // Not allow expired tokens
+  const user = await getCurrentUser(); // Allows expired tokens
+
   return (
     <html lang="en" suppressHydrationWarning>
       <body className={"overflow-hidden " + inter.className}>
@@ -30,11 +36,13 @@ export default function RootLayout({
           enableSystem
           disableTransitionOnChange
         >
-          <div className="flex flex-col px-16 h-[100vh]">
-            <Nav />
-            {children}
-          </div>
-          <Toaster />
+          <AuthProvider user={user} isLoggedIn={isAuthorized}>
+            <div className="flex flex-col px-16 h-[100vh]">
+              <Nav />
+              {children}
+            </div>
+            <Toaster />
+          </AuthProvider>
         </ThemeProvider>
       </body>
     </html>
diff --git a/frontend/app/lib/actions.ts b/frontend/app/lib/actions.ts
index 70e530f0..920ed825 100644
--- a/frontend/app/lib/actions.ts
+++ b/frontend/app/lib/actions.ts
@@ -249,3 +249,10 @@ export async function deleteRoomUser(roomId: number, userId: number) {
     return "Success";
   }
 }
+
+export async function signInAsTestUser() {
+  const email = "test@example.com";
+  const password = "password-test";
+  await signIn({ email, password });
+  redirect("/");
+}
diff --git a/frontend/app/lib/client-auth.tsx b/frontend/app/lib/client-auth.tsx
new file mode 100644
index 00000000..309394de
--- /dev/null
+++ b/frontend/app/lib/client-auth.tsx
@@ -0,0 +1,21 @@
+"use client";
+import { createContext, useContext } from "react";
+
+type User = {
+  id: number;
+  name: string;
+  email: string;
+  avatarURL?: string;
+  createdAt: string;
+};
+
+type AuthContextType = {
+  currentUser?: User;
+  isLoggedIn: boolean;
+};
+
+export const AuthContext = createContext<AuthContextType>({
+  isLoggedIn: false,
+});
+
+export const useAuthContext = () => useContext(AuthContext);
diff --git a/frontend/app/lib/session.ts b/frontend/app/lib/session.ts
index 6f5c709c..ff0fed5e 100644
--- a/frontend/app/lib/session.ts
+++ b/frontend/app/lib/session.ts
@@ -1,5 +1,6 @@
 import { cookies } from "next/headers";
 import * as jose from "jose";
+import { getUser } from "./actions";
 
 // TODO: add types
 export type Session = {};
@@ -22,10 +23,30 @@ export async function isLoggedIn() {
   return true;
 }
 
-export async function getUserId(): Promise<string | null> {
+export async function getCurrentUser(): Promise<any> {
+  try {
+    const userId = await getCurrentUserId();
+    const user = getUser(userId);
+    return user;
+  } catch (e) {
+    console.log("getCurrentUser: ", e);
+    return null;
+  }
+}
+
+// Only use this function if you are sure that the user is logged in
+export async function getCurrentUserId(): Promise<number> {
   const payload = await getAccessTokenPayload({ ignoreExpiration: true });
-  if (!payload) return null;
-  return payload.userId as string;
+  const userId = payload?.userId?.toString();
+  // If userId is not set, then return null
+  if (!userId) {
+    throw new Error("userId is not set");
+  }
+  // If invalid userId, then return null
+  if (!userId.match(/^[0-9]+$/)) {
+    throw new Error("invalid userId");
+  }
+  return parseInt(userId);
 }
 
 async function getAccessTokenPayload(options: any) {
diff --git a/frontend/app/room/[id]/page.tsx b/frontend/app/room/[id]/page.tsx
index 9c23371e..79d7f6b5 100644
--- a/frontend/app/room/[id]/page.tsx
+++ b/frontend/app/room/[id]/page.tsx
@@ -25,7 +25,7 @@
 //  );
 //}
 
-import { getUserId } from "@/app/lib/session";
+import { getCurrentUserId } from "@/app/lib/session";
 import { Separator } from "@/components/ui/separator";
 import { Sidebar } from "../sidebar";
 import { getRoom, getUsers, getUser } from "@/app/lib/actions";
@@ -44,11 +44,7 @@ export default async function Page({
 }: {
   params: { id: number };
 }) {
-  const currentUserId = await getUserId();
-  if (!currentUserId) {
-    console.error("getUserId error");
-    throw new Error("getUserId error");
-  }
+  const currentUserId = await getCurrentUserId();
   const roomInfo = await getRoom(id);
   if (!roomInfo) {
     notFound();
@@ -60,10 +56,9 @@ export default async function Page({
     .sort((a: UserRole, b: UserRole) => a.id - b.id);
 
   const myInfo = roomInfo.users.find((user: UserOnRoom) => {
-    return user.userId === parseInt(currentUserId);
+    return user.userId === currentUserId;
   });
   if (!myInfo) {
-    console.error("Not participating in room");
     throw new Error("Not participating in room");
   }
   const allUsers = await getUsers();
@@ -76,7 +71,7 @@ export default async function Page({
       role: usersRole[i].role,
     }),
   );
-  const currentUser = await getUser(parseInt(currentUserId));
+  const currentUser = await getUser(currentUserId);
   return (
     <>
       <div className="overflow-auto flex-grow flex gap-4 pb-4">
diff --git a/frontend/app/ui/direct-message/dm-sidebar.tsx b/frontend/app/ui/direct-message/dm-sidebar.tsx
index 584d9cb0..412580ee 100644
--- a/frontend/app/ui/direct-message/dm-sidebar.tsx
+++ b/frontend/app/ui/direct-message/dm-sidebar.tsx
@@ -2,7 +2,7 @@ import { Card, CardHeader, CardTitle, CardContent } from "@/components/ui/card";
 import { ScrollArea } from "@/components/ui/scroll-area";
 import { Separator } from "@/components/ui/separator";
 import { getUsers } from "@/app/lib/actions";
-import { getUserId } from "@/app/lib/session";
+import { getCurrentUserId } from "@/app/lib/session";
 import { UserButton } from "@/app/ui/direct-message/user-button";
 
 const DirectMessageSidebar = async () => {
@@ -11,12 +11,8 @@ const DirectMessageSidebar = async () => {
     console.error("getUsers Error");
     return null;
   }
-  const currentUserId = await getUserId();
-  if (!currentUserId) {
-    console.error("getUserId Error");
-    return null;
-  }
-  const users = tmpUsers.filter((user) => parseInt(currentUserId) !== user.id);
+  const currentUserId = await getCurrentUserId();
+  const users = tmpUsers.filter((user) => currentUserId !== user.id);
   return (
     <div>
       <Card className="flex flex-col h-full text-primary w-full dark:bg-[#1E1F22] bg-[#F2F3F5]">
diff --git a/frontend/app/ui/nav.tsx b/frontend/app/ui/nav.tsx
index dd23f946..dddbb99b 100644
--- a/frontend/app/ui/nav.tsx
+++ b/frontend/app/ui/nav.tsx
@@ -1,9 +1,8 @@
 import { ModeToggle } from "@/components/toggle-mode";
 import { Button } from "@/components/ui/button";
 import Link from "next/link";
-import { signIn, signOut } from "@/app/lib/actions";
+import { signInAsTestUser, signOut } from "@/app/lib/actions";
 import { isLoggedIn } from "@/app/lib/session";
-import { redirect } from "next/navigation";
 
 function AuthorizedMenu() {
   return (
@@ -20,14 +19,6 @@ function AuthorizedMenu() {
   );
 }
 
-async function signInAsTestUser() {
-  "use server";
-  const email = "test@example.com";
-  const password = "password-test";
-  await signIn({ email, password });
-  redirect("/");
-}
-
 function UnauthorizedMenu() {
   return (
     <li className="flex gap-8 items-center">
diff --git a/frontend/app/ui/profile/profile-form.tsx b/frontend/app/ui/profile/profile-form.tsx
index 2f99c5ae..7aabd54e 100644
--- a/frontend/app/ui/profile/profile-form.tsx
+++ b/frontend/app/ui/profile/profile-form.tsx
@@ -1,9 +1,11 @@
+"use client";
 import { Skeleton } from "@/components/ui/skeleton";
 import { Separator } from "@/components/ui/separator";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Stack } from "@/app/ui/layout/stack";
 import { Label } from "@/components/ui/label";
+import { useAuthContext } from "@/app/lib/client-auth";
 
 function AvatarSkeleton() {
   return <Skeleton className="rounded-full h-20 w-20" />;
@@ -23,10 +25,11 @@ function ProfileItem({ type, title, value }: ProfileItemProps) {
 export type ProfileItemProps = {
   type: string;
   title: string;
-  value: string;
+  value?: string;
 };
 
 export default function ProfileForm() {
+  const { currentUser } = useAuthContext();
   // Menu: min 100px
   // Profile : the rest
   return (
@@ -37,8 +40,8 @@ export default function ProfileForm() {
           <Separator />
         </Stack>
         <AvatarSkeleton />
-        <ProfileItem type="text" title="name" value="susami" />
-        <ProfileItem type="email" title="email" value="susami@example.com" />
+        <ProfileItem type="text" title="name" value={currentUser?.name} />
+        <ProfileItem type="email" title="email" value={currentUser?.email} />
         <div></div>
         <Button variant="outline" className="w-40">
           Save