TIL 240522 NAVER Open API

 

네이버 서비스를 코드로 이용할 수 있는 서비스

https://developers.naver.com/products/intro/plan/

https://developers.naver.com/products/intro/plan/

 

API 이용 신청하기

1. 애플리케이션 등록

 

2. 로그인

 

3. 등록하기

애플리케이션 이름 - MySelectShop

사용 API - 검색

환경 추가 - WEB  선택후 http://localhost 입력

 

4. Client ID, Client Secret 생성된 것 확인

 

5. 이용 신청 완료

 

POSTMAN으로 확인하기

 

상품 검색 API 동작 순서 이해하기

 

 

상품 검색 API 구현

- 검색한 상품을 반환하는 API 생성

naver > controller > NaverApiController

package com.sparta.springresttemplateclient.naver.controller;

import com.sparta.springresttemplateclient.naver.dto.ItemDto;
import com.sparta.springresttemplateclient.naver.service.NaverApiService;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
@RequestMapping("/api")
public class NaverApiController {

    private final NaverApiService naverApiService;

    public NaverApiController(NaverApiService naverApiService) {
        this.naverApiService = naverApiService;
    }

    @GetMapping("/search")
    public List<ItemDto> searchItems(@RequestParam String query)  {
        return naverApiService.searchItems(query);
    }
}

 

naver > dto >ItemDto

package com.sparta.springresttemplateclient.naver.dto;

import lombok.Getter;
import lombok.NoArgsConstructor;
import org.json.JSONObject;

@Getter
@NoArgsConstructor
public class ItemDto {
    private String title;
    private String link;
    private String image;
    private int lprice;

    public ItemDto(JSONObject itemJson) {
        this.title = itemJson.getString("title");
        this.link = itemJson.getString("link");
        this.image = itemJson.getString("image");
        this.lprice = itemJson.getInt("lprice");
    }
}

 

naver > service > NaverApiService

package com.sparta.springresttemplateclient.naver.service;

import com.sparta.springresttemplateclient.naver.dto.ItemDto;
import lombok.extern.slf4j.Slf4j;
import org.json.JSONArray;
import org.json.JSONObject;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.http.RequestEntity;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;
import org.springframework.web.util.UriComponentsBuilder;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;

@Slf4j(topic = "NAVER API")
@Service
public class NaverApiService {

    private final RestTemplate restTemplate;

    public NaverApiService(RestTemplateBuilder builder) {
        this.restTemplate = builder.build();
    }

    public List<ItemDto> searchItems(String query) {
        // 요청 URL 만들기
        URI uri = UriComponentsBuilder
                .fromUriString("https://openapi.naver.com")
                .path("/v1/search/shop.json")
                .queryParam("display", 15)
                .queryParam("query", query)
                .encode()
                .build()
                .toUri();
        log.info("uri = " + uri);

        RequestEntity<Void> requestEntity = RequestEntity
                .get(uri)
                .header("X-Naver-Client-Id", "Client-Id")
                .header("X-Naver-Client-Secret", "Client-Secret")
                .build();

        ResponseEntity<String> responseEntity = restTemplate.exchange(requestEntity, String.class);

        log.info("NAVER API Status Code : " + responseEntity.getStatusCode());

        return fromJSONtoItems(responseEntity.getBody());
    }

    public List<ItemDto> fromJSONtoItems(String responseEntity) {
        JSONObject jsonObject = new JSONObject(responseEntity);
        JSONArray items  = jsonObject.getJSONArray("items");
        List<ItemDto> itemDtoList = new ArrayList<>();

        for (Object item : items) {
            ItemDto itemDto = new ItemDto((JSONObject) item);
            itemDtoList.add(itemDto);
        }

        return itemDtoList;
    }
}

 

POSTMAN에서 확인

GET   -  http://localhost:8080/api/search?query=macbook