feat: 카카오 로그아웃 API 구현 (#69)

src/main/java/com/listywave/auth/application/domain/kakao/KakaoOauthClient.java

@@ -1,6 +1,7 @@
 package com.listywave.auth.application.domain.kakao;
 
 import com.listywave.auth.infra.kakao.KakaoOauthApiClient;
+import com.listywave.auth.infra.kakao.response.KakaoLogoutResponse;
 import com.listywave.auth.infra.kakao.response.KakaoMember;
 import com.listywave.auth.infra.kakao.response.KakaoTokenResponse;
 import lombok.RequiredArgsConstructor;
@@ -30,4 +31,9 @@ public KakaoTokenResponse requestToken(String authCode) {
     public KakaoMember fetchMember(String accessToken) {
         return apiClient.fetchKakaoMember("Bearer " + accessToken);
     }
+
+    public Long logout(String oauthAccessToken) {
+        KakaoLogoutResponse response = apiClient.logout(oauthAccessToken);
+        return response.id();
+    }
 }

src/main/java/com/listywave/auth/application/service/AuthService.java

@@ -47,4 +47,10 @@ public LoginResponse login(String authCode) {
     public String createToken(Long userId) {
         return jwtManager.createToken(userId);
     }
+
+    public void logout(String accessToken) {
+        Long userId = jwtManager.read(accessToken);
+        User user = userRepository.getById(userId);
+        kakaoOauthClient.logout(user.getKakaoAccessToken());
+    }
 }

src/main/java/com/listywave/auth/infra/kakao/KakaoOauthApiClient.java

@@ -2,6 +2,7 @@
 
 import static org.springframework.http.HttpHeaders.AUTHORIZATION;
 
+import com.listywave.auth.infra.kakao.response.KakaoLogoutResponse;
 import com.listywave.auth.infra.kakao.response.KakaoMember;
 import com.listywave.auth.infra.kakao.response.KakaoTokenResponse;
 import org.springframework.util.MultiValueMap;
@@ -22,4 +23,7 @@ public interface KakaoOauthApiClient {
             contentType = "application/x-www-form-urlencoded;charset=utf-8"
     )
     KakaoMember fetchKakaoMember(@RequestHeader(name = AUTHORIZATION) String accessToken);
+
+    @PostExchange(url = "https://kapi.kakao.com/v1/user/logout")
+    KakaoLogoutResponse logout(@RequestHeader(value = AUTHORIZATION) String accessToken);
 }

src/main/java/com/listywave/auth/infra/kakao/response/KakaoLogoutResponse.java

@@ -0,0 +1,6 @@
+package com.listywave.auth.infra.kakao.response;
+
+public record KakaoLogoutResponse(
+        Long id
+) {
+}

src/main/java/com/listywave/auth/presentation/AuthController.java

@@ -1,5 +1,7 @@
 package com.listywave.auth.presentation;
 
+import static org.springframework.http.HttpHeaders.AUTHORIZATION;
+
 import com.listywave.auth.application.dto.LoginResponse;
 import com.listywave.auth.application.service.AuthService;
 import jakarta.servlet.http.HttpServletResponse;
@@ -9,6 +11,8 @@
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PatchMapping;
+import org.springframework.web.bind.annotation.RequestHeader;
 import org.springframework.web.bind.annotation.RequestParam;
 import org.springframework.web.bind.annotation.RestController;
 
@@ -38,4 +42,10 @@ ResponseEntity<LoginResponse> login(
         response.setHeader(HttpHeaders.SET_COOKIE, accessToken);
         return ResponseEntity.ok(loginResponse);
     }
+
+    @PatchMapping("/auth/kakao")
+    ResponseEntity<Void> logout(@RequestHeader(value = AUTHORIZATION) String accessToken) {
+        authService.logout(accessToken);
+        return ResponseEntity.noContent().build();
+    }
 }