[feat] 회원가입 응답에 userId 추가

src/main/java/com/moive/MoiveBE/domain/auth/controller/AuthController.java

@@ -44,7 +44,7 @@ public BaseResponse<KakaoLoginResponse> kakaoLogin(
     )
     @SecurityRequirements
     @PostMapping("/signup")
-    public BaseResponse<TokenResponse> signup(
+    public BaseResponse<SignupResponse> signup(
             @Valid @RequestBody SignupRequest request
     ) {
         return BaseResponse.success(

src/main/java/com/moive/MoiveBE/domain/auth/dto/SignupResponse.java

@@ -0,0 +1,26 @@
+package com.moive.MoiveBE.domain.auth.dto;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+
+public record SignupResponse(
+
+        @Schema(
+                description = "MOIVE User ID",
+                example = "1"
+        )
+        Long userId,
+
+        @Schema(
+                description = "MOIVE Access Token",
+                example = "eyJhbGciOiJIUzI1NiJ9..."
+        )
+        String accessToken,
+
+        @Schema(
+                description = "MOIVE Refresh Token",
+                example = "eyJhbGciOiJIUzI1NiJ9..."
+        )
+        String refreshToken
+
+) {
+}

src/main/java/com/moive/MoiveBE/domain/auth/service/AuthService.java

@@ -13,6 +13,7 @@
 import com.moive.MoiveBE.domain.user.repository.UserAgreementRepository;
 import com.moive.MoiveBE.domain.auth.dto.TokenResponse;
 import com.moive.MoiveBE.domain.auth.dto.ReissueRequest;
+import com.moive.MoiveBE.domain.auth.dto.SignupResponse;
 import com.moive.MoiveBE.domain.auth.dto.LogoutRequest;
 import com.moive.MoiveBE.global.jwt.JwtTokenProvider;
 
@@ -179,7 +180,7 @@ private void validateAgreementVersions(SignupRequest request) {
     }
 
     @Transactional
-    public TokenResponse signup(SignupRequest request) {
+    public SignupResponse signup(SignupRequest request) {
 
         // 1. Kakao Access Token으로 사용자 정보 다시 조회
         KakaoUserInfoResponse kakaoUser =
@@ -253,7 +254,8 @@ public TokenResponse signup(SignupRequest request) {
         );
 
         // 10. 서비스 토큰 반환
-        return new TokenResponse(
+        return new SignupResponse(
+                savedUser.getId(),
                 accessToken,
                 refreshToken
         );

src/test/java/com/moive/MoiveBE/domain/auth/service/AuthServiceSignupTest.java

@@ -2,6 +2,7 @@
 
 import com.moive.MoiveBE.domain.auth.dto.KakaoUserInfoResponse;
 import com.moive.MoiveBE.domain.auth.dto.SignupRequest;
+import com.moive.MoiveBE.domain.auth.dto.SignupResponse;
 import com.moive.MoiveBE.domain.auth.dto.TokenResponse;
 import com.moive.MoiveBE.domain.user.entity.AgreementType;
 import com.moive.MoiveBE.domain.user.entity.User;
@@ -102,7 +103,7 @@ void setUp() {
                 .thenReturn("refresh-token");
 
         // when
-        TokenResponse result =
+        SignupResponse result =
                 authService.signup(request);
 
         // then
@@ -138,6 +139,9 @@ void setUp() {
 
         assertThat(agreements).hasSize(3);
 
+        assertThat(result.userId())
+                .isEqualTo(1L);
+
         assertThat(result.accessToken())
                 .isEqualTo("access-token");