[VACGOM-146] feat: 소셜 로그인 예외 응답 추가

src/main/kotlin/kr/co/vacgom/api/auth/oauth/kakao/KakaoOAuthStrategy.kt

@@ -1,7 +1,11 @@
 package kr.co.vacgom.api.auth.oauth.kakao
 
+import feign.FeignException
 import kr.co.vacgom.api.auth.oauth.OAuthStrategy
 import kr.co.vacgom.api.auth.oauth.dto.SocialAuthInfo
+import kr.co.vacgom.api.global.exception.error.BusinessException
+import kr.co.vacgom.api.global.exception.error.GlobalError
+import kr.co.vacgom.api.user.exception.AuthError
 import kr.co.vacgom.api.user.presentation.dto.LoginDto
 import org.springframework.stereotype.Component
 
@@ -12,8 +16,15 @@ class KakaoOAuthStrategy(
 ): OAuthStrategy {
 
     override fun getUserInfo(request: LoginDto.Request.Social): SocialAuthInfo {
-        val kakaoUserInfo = kakaoFeignClient.getUserInfo(BEARER_PREFIX + request.accessToken)
-        return SocialAuthInfo(kakaoUserInfo.id)
+        return runCatching {
+            val kakaoUserInfo = kakaoFeignClient.getUserInfo(BEARER_PREFIX + request.accessToken)
+            SocialAuthInfo(kakaoUserInfo.id)
+        }.onFailure {
+            when (it) {
+                is FeignException.Unauthorized -> throw BusinessException(AuthError.FEIGN_UNAUTHORIZED)
+                else -> throw BusinessException(GlobalError.INTERNAL_SERVER_ERROR)
+            }
+        }.getOrThrow()
     }
 
     override fun revokeUser(socialId: String) {

src/main/kotlin/kr/co/vacgom/api/user/exception/AuthError.kt

@@ -0,0 +1,13 @@
+package kr.co.vacgom.api.user.exception
+
+import kr.co.vacgom.api.global.exception.error.ErrorCode
+import org.springframework.http.HttpStatus
+import org.springframework.http.HttpStatus.NOT_FOUND
+
+enum class AuthError(
+    override val message: String,
+    override val status: HttpStatus,
+    override val code: String,
+) : ErrorCode {
+    FEIGN_UNAUTHORIZED("유효하지 않은 엑세스 토큰 입니다.", NOT_FOUND, "A_001"),
+}