✨ 카카오 유저 정보 조회

src/main/java/yapp/allround3/auth/oauth/client/KakaoUserInfoClient.java

@@ -0,0 +1,52 @@
+package yapp.allround3.auth.oauth.client;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.ResponseEntity;
+import org.springframework.stereotype.Component;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestTemplate;
+import yapp.allround3.common.exception.CustomException;
+
+@Component("KAKAO")
+@Slf4j
+public class KakaoUserInfoClient implements OauthUserInfoClient {
+
+    private final ObjectMapper objectMapper = new ObjectMapper();
+    public OauthUserInfo getUserInfo(String accessToken) {
+        HttpHeaders headers = new HttpHeaders();
+        headers.add("Authorization", "Bearer " + accessToken);
+        headers.add("Content-type", "application/x-www-form-urlencoded;charset=utf-8");
+
+        HttpEntity<MultiValueMap<String, String>> kakaoUserInfoRequest = new HttpEntity<>(headers);
+        RestTemplate rt = new RestTemplate();
+        ResponseEntity<String> response = rt.exchange(
+                "https://kapi.kakao.com/v2/user/me",
+                HttpMethod.POST,
+                kakaoUserInfoRequest,
+                String.class
+        );
+
+        String body = response.getBody();
+        try {
+            JsonNode jsonNode = objectMapper.readTree(body);
+            String id = jsonNode.get("id").asText();
+            String nickname = jsonNode.get("properties").get("nickname").asText();
+            String email = jsonNode.get("kakao_account").get("email").asText();
+            String imageUrl = jsonNode.get("properties").get("profile_image").asText();
+
+            return OauthUserInfo.builder()
+                    .oauthId(id)
+                    .nickname(nickname)
+                    .email(email)
+                    .imageUrl(imageUrl)
+                    .build();
+        } catch (Exception e) {
+            throw new CustomException("Oauth 회원 정보 조회 에러");
+        }
+    }
+}

src/main/java/yapp/allround3/auth/oauth/client/OauthUserInfo.java

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+package yapp.allround3.auth.oauth.client;
+
+import lombok.Builder;
+import lombok.Getter;
+import yapp.allround3.auth.oauth.Provider;
+import yapp.allround3.member.domain.Member;
+
+@Getter
+@Builder
+public class OauthUserInfo {
+	private final String nickname;
+	private final String email;
+	private final String imageUrl;
+	private final Provider provider;
+	private final String oauthId;
+
+	public Member toMember() {
+		return Member.builder()
+			.name(nickname)
+			.email(email)
+			.imageUrl(imageUrl)
+			.provider(provider)
+			.oauthId(oauthId)
+			.build();
+	}
+}

src/main/java/yapp/allround3/auth/oauth/client/OauthUserInfoClient.java

@@ -0,0 +1,5 @@
+package yapp.allround3.auth.oauth.client;
+
+public interface OauthUserInfoClient {
+    OauthUserInfo getUserInfo(String accessToken);
+}