[Auth] 카카오 소셜 로그인 구현

[larama-C]

🔗 관련 이슈

관련된 이슈 번호를 연결해주세요.
Close #이슈번호 를 쓰면 PR merge 시 자동으로 close 됩니다.

• Close [Auth] 카카오 소셜 로그인 기능 구현 #88

🚀 PR 개요

이 PR이 어떤 변경을 포함하고 있는지 간단히 설명해주세요.

• 카카오 OAuth2 기반 소셜 로그인 기능을 신규 구현했습니다.
• 카카오 인가 코드 → 액세스 토큰 발급 → 사용자 정보 조회 흐름을 통해 로그인/회원가입을 처리
• 기존 회원은 로그인, 신규 회원은 자동 회원가입 후 JWT를 발급하는 구조입니다.

📌 변경 사항

주요 변경 내용을 체크리스트 형태로 정리해주세요.

• 기능 추가
• 버그 수정
• 리팩터링
• 문서 업데이트
• 테스트 추가/수정

🧪 테스트 방법

변경된 내용을 어떻게 테스트했는지 구체적으로 적어주세요.

📸 스크린샷 (선택)

UI 변경 또는 시각적으로 확인할 수 있는 변경이 있다면 첨부해주세요.

⚠️ 참고 사항

리뷰어가 알아야 할 사항이 있다면 자유롭게 작성해주세요.

• 카카오 소셜 로그인 관련 환경 변수 추가되어서 환경 변수 추가가 필요합니다.
• 추후 구글 로그인도 구현 예정입니다.

[github-actions]

Test Results

1 tests  ±0   1 ✅ ±0   0s ⏱️ ±0s
1 suites ±0   0 💤 ±0 
1 files   ±0   0 ❌ ±0 

Results for commit 18b72e7. ± Comparison against base commit 697d54e.

♻️ This comment has been updated with latest results.

[github-actions]

⭐ JaCoCo Coverage

Line Coverage: 5.70%

📄 Coverage Details

Overall Line Coverage: 5.66% (123 covered / 2172 lines)

Package Summary (lowest first)

Package	Line %	Covered	Missed
com/back/web7_9_codecrete_be/domain/chats/controller	0.00%	0	0
com/back/web7_9_codecrete_be/domain/location/service	0.00%	0	25
com/back/web7_9_codecrete_be/domain/chats/service	0.00%	0	0
com/back/web7_9_codecrete_be/domain/plans/controller	0.00%	0	33
com/back/web7_9_codecrete_be/domain/location/controller	0.00%	0	4
com/back/web7_9_codecrete_be/global/rsData	0.00%	0	11
com/back/web7_9_codecrete_be/domain/location/entity	0.00%	0	0
com/back/web7_9_codecrete_be/global/scheduler	0.00%	0	3
com/back/web7_9_codecrete_be/domain/auth/entity	0.00%	0	0
com/back/web7_9_codecrete_be/domain/auth/service	0.00%	0	119
com/back/web7_9_codecrete_be/domain/plans/service	0.00%	0	311
com/back/web7_9_codecrete_be/global/initData	0.00%	0	30
com/back/web7_9_codecrete_be/domain/users/controller	0.00%	0	20
com/back/web7_9_codecrete_be/domain/email/entity	0.00%	0	6
com/back/web7_9_codecrete_be/domain/users/service	0.00%	0	59
com/back/web7_9_codecrete_be/domain/auth/controller	0.00%	0	24
com/back/web7_9_codecrete_be/domain/concerts/controller	0.00%	0	22
com/back/web7_9_codecrete_be/domain/artists/controller	0.00%	0	12
com/back/web7_9_codecrete_be/global/aspect	0.00%	0	4
com/back/web7_9_codecrete_be/global/wikidata	0.36%	1	279
com/back/web7_9_codecrete_be/domain/artists/service	0.86%	3	345
com/back/web7_9_codecrete_be/global/musicbrainz	0.99%	1	100
com/back/web7_9_codecrete_be/domain/email/service	1.92%	1	51
com/back/web7_9_codecrete_be/domain/concerts/entity	4.76%	3	60
com/back/web7_9_codecrete_be/domain/concerts/service	6.80%	21	288
com/back/web7_9_codecrete_be/domain/artists/entity	9.09%	3	30
com/back/web7_9_codecrete_be/global/rq	12.90%	4	27
com/back/web7_9_codecrete_be/domain/plans/entity	24.42%	21	65
com/back/web7_9_codecrete_be/global/security	26.36%	29	81
com/back/web7_9_codecrete_be/domain/users/entity	29.27%	12	29
com/back/web7_9_codecrete_be/global/storage	33.33%	1	2
com/back/web7_9_codecrete_be/global/spotify	35.71%	5	9
com/back/web7_9_codecrete_be/domain/chats/entity	100.00%	1	0
com/back/web7_9_codecrete_be/global/doc	100.00%	17	0

Lowest Covered Classes (Top 20)

Class	Line %	Covered	Missed
com.back.web7_9_codecrete_be.domain.plans.service.PlanService	0.00%	0	311
com.back.web7_9_codecrete_be.domain.auth.service.AuthService	0.00%	0	74
com.back.web7_9_codecrete_be.domain.users.service.UserService	0.00%	0	55
com.back.web7_9_codecrete_be.domain.concerts.service.ConcertService	0.00%	0	48
com.back.web7_9_codecrete_be.domain.artists.service.ArtistService	0.00%	0	44
com.back.web7_9_codecrete_be.domain.concerts.entity.Concert	0.00%	0	38
com.back.web7_9_codecrete_be.global.security.JwtTokenProvider	0.00%	0	37
com.back.web7_9_codecrete_be.domain.plans.entity.Schedule	0.00%	0	36
com.back.web7_9_codecrete_be.domain.plans.controller.PlanController	0.00%	0	33
com.back.web7_9_codecrete_be.global.initData.BaseInitData	0.00%	0	30
com.back.web7_9_codecrete_be.domain.users.entity.User	0.00%	0	29
com.back.web7_9_codecrete_be.domain.auth.service.TokenService	0.00%	0	27
com.back.web7_9_codecrete_be.domain.artists.entity.Artist	0.00%	0	25
com.back.web7_9_codecrete_be.domain.auth.controller.AuthController	0.00%	0	24
com.back.web7_9_codecrete_be.domain.users.controller.UserController	0.00%	0	20
com.back.web7_9_codecrete_be.domain.plans.entity.Plan	0.00%	0	18
com.back.web7_9_codecrete_be.domain.auth.service.KakaoOAuthService	0.00%	0	18
com.back.web7_9_codecrete_be.domain.concerts.controller.ConcertController	0.00%	0	14
com.back.web7_9_codecrete_be.domain.location.service.TmapService	0.00%	0	13
com.back.web7_9_codecrete_be.domain.concerts.service.KopisApiService$TicketPrice	0.00%	0	13

Changed Classes (from this PR)

Source (PR)	Class Prefix	Line %	Covered	Missed
src/main/java/com/back/web7_9_codecrete_be/domain/auth/service/AuthService.java	com.back.web7_9_codecrete_be.domain.auth.service.AuthService	0.00%	0	74
src/main/java/com/back/web7_9_codecrete_be/global/initData/BaseInitData.java	com.back.web7_9_codecrete_be.global.initData.BaseInitData	0.00%	0	30
src/main/java/com/back/web7_9_codecrete_be/domain/auth/controller/AuthController.java	com.back.web7_9_codecrete_be.domain.auth.controller.AuthController	0.00%	0	24
src/main/java/com/back/web7_9_codecrete_be/domain/auth/service/KakaoOAuthService.java	com.back.web7_9_codecrete_be.domain.auth.service.KakaoOAuthService	0.00%	0	18
src/main/java/com/back/web7_9_codecrete_be/domain/auth/dto/kakao/KakaoTokenResponse.java	com.back.web7_9_codecrete_be.domain.auth.dto.kakao.KakaoTokenResponse	0.00%	0	0
src/main/java/com/back/web7_9_codecrete_be/domain/auth/dto/kakao/KakaoUserInfo.java	com.back.web7_9_codecrete_be.domain.auth.dto.kakao.KakaoUserInfo	0.00%	0	0
src/main/java/com/back/web7_9_codecrete_be/domain/auth/dto/kakao/KakaoUserResponse.java	com.back.web7_9_codecrete_be.domain.auth.dto.kakao.KakaoUserResponse	0.00%	0	0
src/main/java/com/back/web7_9_codecrete_be/domain/users/repository/UserRepository.java	com.back.web7_9_codecrete_be.domain.users.repository.UserRepository	0.00%	0	0
src/main/java/com/back/web7_9_codecrete_be/global/error/code/AuthErrorCode.java	com.back.web7_9_codecrete_be.global.error.code.AuthErrorCode	0.00%	0	0
src/main/java/com/back/web7_9_codecrete_be/domain/users/entity/User.java	com.back.web7_9_codecrete_be.domain.users.entity.User	12.12%	4	29
src/main/java/com/back/web7_9_codecrete_be/global/security/SecurityConfig.java	com.back.web7_9_codecrete_be.global.security.SecurityConfig	100.00%	25	0
src/main/java/com/back/web7_9_codecrete_be/domain/users/entity/SocialType.java	com.back.web7_9_codecrete_be.domain.users.entity.SocialType	100.00%	4	0

🔗 Full HTML report: See artifact jacoco-full-html on this run → https://github.com/prgrms-web-devcourse-final-project/WEB7_9_codecrete_BE/actions/runs/20260230397

[ys0221]

고생하셨습니다!!