Merge pull request #19 from prgrms-aibe-devcourse/feat/#13

Feat/#13 naver api

Author: seokminseok

src/main/java/com/closetnangam/be/global/external/naver/NaverShoppingService.java

@@ -0,0 +1,20 @@
+package com.closetnangam.be.global.external.naver.controller;
+
+import com.closetnangam.be.global.external.naver.service.NaverApiService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+@RestController
+@RequestMapping("/api/naver")
+@RequiredArgsConstructor
+public class NaverApiController {
+
+    private final NaverApiService naverApiService;
+
+    @GetMapping("/search")
+    public ResponseEntity<String> search(@RequestParam String keyword) {
+        String result = naverApiService.searchShop(keyword);
+        return ResponseEntity.ok(result);
+    }
+}

src/main/java/com/closetnangam/be/global/external/naver/controller/NaverApiController.java

@@ -0,0 +1,59 @@
+package com.closetnangam.be.global.external.naver.service;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.http.*;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import java.net.URI;
+import java.nio.charset.StandardCharsets;
+
+@Service
+public class NaverApiService {
+
+    // ⚠️ 중요: yml 경로(spring.security.oauth2.client.registration.naver...)와 완벽하게 싱크를 맞춥니다!
+    @Value("${spring.security.oauth2.client.registration.naver.client-id}")
+    private String clientId;
+
+    @Value("${spring.security.oauth2.client.registration.naver.client-secret}")
+    private String clientSecret;
+
+    // 1. 메서드 이름을 쇼핑 검색에 맞게 수정했습니다.
+    public String searchShop(String keyword) {
+        RestTemplate restTemplate = new RestTemplate();
+
+        // 2. path를 블로그(.blog)에서 쇼핑(.shop)으로 변경했습니다!
+        URI targetUri = UriComponentsBuilder
+                .fromUriString("https://openapi.naver.com")
+                .path("/v1/search/shop.json")
+                .queryParam("query", keyword)
+                .queryParam("display", 10)
+                .encode(StandardCharsets.UTF_8)
+                .build()
+                .toUri();
+
+        // 2. 네이버 API 필수 헤더 설정 (아주 정확하게 잘 짜셨습니다!)
+        HttpHeaders headers = new HttpHeaders();
+        headers.set("X-Naver-Client-Id", clientId);
+        headers.set("X-Naver-Client-Secret", clientSecret);
+        headers.setContentType(MediaType.APPLICATION_JSON);
+
+        HttpEntity<String> entity = new HttpEntity<>(headers);
+
+        // 3. API 호출 및 응답 받기
+        ResponseEntity<String> response = restTemplate.exchange(
+                targetUri,
+                HttpMethod.GET,
+                entity,
+                String.class
+        );
+
+        // 4. 결과 반환
+        if (response.getStatusCode() == HttpStatus.OK) {
+            return response.getBody();
+        } else {
+            throw new RuntimeException("네이버 쇼핑 API 호출 실패: " + response.getStatusCode());
+        }
+    }
+}