[#4] Kakao 로그인 요청 API 컨트롤러

api/src/main/java/com/teamnexters/lazy/api/controller/OAuthController.java

@@ -0,0 +1,65 @@
+package com.teamnexters.lazy.api.controller;
+
+import com.teamnexters.lazy.api.config.auth.jwt.JwtTokenProvider;
+import com.teamnexters.lazy.api.config.auth.jwt.Token;
+import com.teamnexters.lazy.api.domain.oauthDto.KakaoProfileDto;
+import com.teamnexters.lazy.api.domain.oauthDto.KakaoTokenDto;
+import com.teamnexters.lazy.api.exception.MemberNotFoundException;
+import com.teamnexters.lazy.api.service.KakaoService;
+import com.teamnexters.lazy.common.domain.member.Member;
+import com.teamnexters.lazy.common.domain.member.MemberRepository;
+import com.teamnexters.lazy.common.domain.member.Provider;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import lombok.AllArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@Slf4j
+@Tag(name = "OAuth 소셜로그인", description = "소셜로그인 관련 API")
+@RestController
+@AllArgsConstructor
+public class OAuthController {
+
+    private KakaoService kakaoService;
+    private MemberRepository memberRepository;
+    private JwtTokenProvider jwtTokenProvider;
+
+    @Operation(summary = "✅ Kakao Callback - AccessToken 받아오기",
+            description = "카카오 로그인 후 코드로 AccessToken 을 받아옵니다.",
+            responses = {
+                    @ApiResponse(
+                            responseCode = "200", description = "[Ok] GET AccessToken",
+                            content = @Content(schema = @Schema(implementation = String.class)))})
+    @GetMapping(value = "/login/oauth2/code/kakao")
+    public String kakaoLogin(@RequestParam("code") String code) {
+        KakaoTokenDto kakaoToken = kakaoService.getKakaoTokenInfo(code);
+        log.info(">>> Callback : Kakao Token = {}", kakaoToken);
+        return kakaoToken.getAccessToken();
+    }
+
+    @Operation(summary = "✅ 소셜로그인 요청 API",
+            description = "소셜로그인 토큰으로 밍굴맹굴 로그인을 시도합니다.",
+            responses = {
+                    @ApiResponse(
+                            responseCode = "200", description = "[Ok] Social Login complete",
+                            content = @Content(schema = @Schema(implementation = Token.class)))})
+    @GetMapping(value = "api/v1/oauth/sign-in/kakao")
+    public ResponseEntity<Token> signInByProvider(
+            @Parameter(description = "소셜 Access Token", required = true) @RequestBody String accessToken) {
+
+        KakaoProfileDto profile = kakaoService.getKakaoProfile(accessToken);
+
+        Integer oauthId = Math.toIntExact(profile.getId());
+        Member member = memberRepository.findByOauthIdAndProvider(oauthId, Provider.KAKAO)
+                .orElseThrow(() -> new MemberNotFoundException(String.valueOf(oauthId)));
+        return ResponseEntity.ok().body(jwtTokenProvider.createToken(String.valueOf(member.getMemIdx()), member.getRole()));
+    }
+
+
+}