SSR / CSR 분리를 위한 accessToken 관리 방식 httpOnly 토큰 저장 방식으로 변경

src/entities/post/api/getPosts.ts

@@ -1,4 +1,5 @@
 import { serverFetch } from "@/shared/api/fetcher.server";
+import { apiFetch } from "@/shared/api/fetcher";
 import { POST_PAGE_SIZE } from "@/entities/post/model/constants/api";
 import type { Post } from "@/entities/post/model/types/post";
 
@@ -22,7 +23,7 @@ export async function getPosts({
   if (keyword) query.append("keyword", keyword);
   if (sort) query.append("sort", sort);
 
-  const { data } = await serverFetch<{ data: Post[] }>(
+  const { data } = await apiFetch<{ data: Post[] }>(
     `/api/postings?${query.toString()}`,
     { method: "GET" },
   );

src/features/auth/ui/LoginForm/LoginForm.tsx

@@ -39,7 +39,6 @@ export const LoginForm = ({
       }>("/auth/login", {
         method: "POST",
         body: JSON.stringify({ email, password }),
-        noAuth: true,
       });
 
       setAccessToken(res.accessToken);

src/features/auth/ui/SignUpForm/SignUpForm.tsx

@@ -135,7 +135,6 @@ export const SignUpForm = ({ onSuccess, onError }: SignUpFormProps) => {
       const res = await apiFetch("/api/users/", {
         method: "POST",
         body: JSON.stringify(body),
-        noAuth: true,
       });
 
       console.log("회원가입 성공:", res);

src/shared/api/fetcher.server.ts

@@ -1,17 +1,39 @@
+import "server-only";
+
+import { cookies } from "next/headers";
+
 const BASE_URL = process.env.NEXT_PUBLIC_API_URL;
 
 export async function serverFetch<T>(
   endpoint: string,
   options?: RequestInit,
 ): Promise<T> {
+  const cookieStore = await cookies();
+  const cookieHeader = [
+    cookieStore.get("accessToken")
+      ? `accessToken=${cookieStore.get("accessToken")?.value}`
+      : "",
+    cookieStore.get("refreshToken")
+      ? `refreshToken=${cookieStore.get("refreshToken")?.value}`
+      : "",
+  ]
+    .filter(Boolean)
+    .join("; ");
+
   const res = await fetch(`${BASE_URL}${endpoint}`, {
     headers: {
       "Content-Type": "application/json",
+      Cookie: cookieHeader,
     },
     cache: "no-store",
+    credentials: "include",
     ...options,
   });
 
+  if (res.status === 401) {
+    //TODO: SSR prefetch 시 에러 핸들링 로직 추가
+  }
+
   if (!res.ok) {
     const text = await res.text();
     throw new Error(text || `Server API error: ${res.status}`);

src/shared/api/fetcher.ts

@@ -1,62 +1,35 @@
-import { useAuthStore } from "@/features/auth/model/auth.store";
-import { refreshAccessToken } from "./refresh";
 import { useModalStore } from "@/shared/model/modal.store";
 
 const BASE_URL = process.env.NEXT_PUBLIC_API_URL;
 
 export async function apiFetch<T>(
   endpoint: string,
-  options: RequestInit & { noAuth?: boolean },
+  options: RequestInit,
 ): Promise<T> {
-  const { headers, noAuth, ...restOptions } = options;
-  const { accessToken, setAccessToken, logout } = useAuthStore.getState();
+  const { headers, ...restOptions } = options;
   const { openModal, closeModal } = useModalStore.getState();
 
   const defaultHeaders: HeadersInit = {
     "Content-Type": "application/json",
   };
 
-  if (!noAuth && typeof window !== "undefined") {
-    defaultHeaders["Authorization"] = `Bearer ${accessToken}`;
-  }
-
-  let res = await fetch(`${BASE_URL}${endpoint}`, {
+  const res = await fetch(`${BASE_URL}${endpoint}`, {
     headers: { ...defaultHeaders, ...headers },
     cache: "no-store",
     credentials: "include",
     ...restOptions,
   });
 
   //AccessToken 만료 처리
-  if (res.status === 401 && !noAuth) {
-    const newToken = await refreshAccessToken();
-
-    if (newToken) {
-      setAccessToken(newToken);
-      defaultHeaders["Authorization"] = `Bearer ${newToken}`;
-
-      //동일한 경로에 요청 재시도
-      res = await fetch(`${BASE_URL}${endpoint}`, {
-        headers: { ...defaultHeaders, ...headers },
-        cache: "no-store",
-        credentials: "include",
-        ...restOptions,
-      });
-    } else {
-      logout();
-      openModal("normal", {
-        message: "세션이 만료되었습니다. 다시 로그인 해주세요.",
-        buttonText: "확인",
-        onClick: () => {
-          closeModal();
-          if (typeof window !== "undefined") {
-            location.replace("/login");
-          }
-        },
-      });
-
-      throw new Error("세션이 만료되었습니다. 다시 로그인 해주세요.");
-    }
+  if (res.status === 401) {
+    openModal("normal", {
+      message: "세션이 만료되었습니다. 다시 로그인 해주세요.",
+      buttonText: "확인",
+      onClick: () => {
+        closeModal();
+        location.replace("/login");
+      },
+    });
   }
 
   if (!res.ok) {