[Feat] OAuth 로그인 성공시의 로직을 설정한다

src/main/java/com/example/cargive/domain/member/repository/MemberRepository.java

@@ -4,7 +4,10 @@
 import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
+import java.util.Optional;
+
 @Repository
 public interface MemberRepository extends JpaRepository<Member, Long> {
     boolean existsMemberByLoginId(String loginId);
+    Optional<Member> findMemberByLoginId(String loginId);
 }

src/main/java/com/example/cargive/global/config/SecurityConfig.java

@@ -1,6 +1,7 @@
 package com.example.cargive.global.config;
 
 import com.example.cargive.domain.auth.service.CustomOAuth2UserService;
+import com.example.cargive.global.config.oauth2.OAuth2SuccessHandler;
 import lombok.RequiredArgsConstructor;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -13,6 +14,7 @@
 @RequiredArgsConstructor
 public class SecurityConfig {
     private final CustomOAuth2UserService customOAuth2UserService;
+    private final OAuth2SuccessHandler oAuth2SuccessHandler;
 
     @Bean
     public SecurityFilterChain configure(HttpSecurity http) throws Exception {
@@ -23,6 +25,7 @@ public SecurityFilterChain configure(HttpSecurity http) throws Exception {
                 .oauth2Login()
                 .userInfoEndpoint()
                 .userService(customOAuth2UserService)
-                .and().and().build();
+                .and().successHandler(oAuth2SuccessHandler)
+                .and().build();
     }
 }

src/main/java/com/example/cargive/global/config/oauth2/OAuth2SuccessHandler.java

@@ -0,0 +1,49 @@
+package com.example.cargive.global.config.oauth2;
+
+import com.example.cargive.domain.member.repository.MemberRepository;
+import com.example.cargive.global.base.BaseException;
+import com.example.cargive.global.base.BaseResponseStatus;
+import jakarta.servlet.http.HttpServletRequest;
+import jakarta.servlet.http.HttpServletResponse;
+import lombok.*;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.oauth2.core.user.OAuth2User;
+import org.springframework.security.web.authentication.SimpleUrlAuthenticationSuccessHandler;
+import org.springframework.stereotype.Component;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import java.io.IOException;
+
+@Component
+@RequiredArgsConstructor
+public class OAuth2SuccessHandler extends SimpleUrlAuthenticationSuccessHandler {
+
+    @Value("${oauth.redirect-uri}")
+    private String redirectUrl;
+
+    private final MemberRepository memberRepository;
+
+    @Override
+    public void onAuthenticationSuccess(HttpServletRequest request,
+                                        HttpServletResponse response,
+                                        Authentication authentication) throws IOException {
+        String redirectUrl = getRedirectUrl(authentication);
+        getRedirectStrategy().sendRedirect(request, response, redirectUrl);
+    }
+
+    private Long getMemberId(Authentication authentication) {
+        OAuth2User principal = (OAuth2User) authentication.getPrincipal();
+
+        String loginId = principal.getAttribute("name");
+
+        return memberRepository.findMemberByLoginId(loginId)
+                .orElseThrow(() -> new BaseException(BaseResponseStatus.MEMBER_NOT_FOUND_ERROR)).getId();
+    }
+
+    private String getRedirectUrl(Authentication authentication) {
+        return UriComponentsBuilder.fromUriString(redirectUrl)
+                .queryParam("memberId", getMemberId(authentication))
+                .build().toUriString();
+    }
+}

src/main/resources/application-dev.yml

@@ -49,4 +49,6 @@ spring:
             authorization-uri: https://kauth.kakao.com/oauth/authorize
             token-uri: https://kauth.kakao.com/oauth/token
             user-info-uri: https://kapi.kakao.com/v2/user/me
-            user-name-attribute: id
+            user-name-attribute: id
+oauth:
+  redirect-uri : "http://localhost:8080"

src/main/resources/application-prod.yml

@@ -51,4 +51,6 @@ spring:
             authorization-uri: https://kauth.kakao.com/oauth/authorize
             token-uri: https://kauth.kakao.com/oauth/token
             user-info-uri: https://kapi.kakao.com/v2/user/me
-            user-name-attribute: id
+            user-name-attribute: id
+oauth:
+  redirect-uri : ${redirect-uri}