MyWebController.java

package com.ajou.prcoding.myweb.controller;

import java.io.IOException;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import com.ajou.prcoding.myweb.dto.FavoriteMusicRequestDto;
import com.ajou.prcoding.myweb.dto.MusicList;
import com.ajou.prcoding.myweb.entity.FavoriteMusic;
import com.ajou.prcoding.myweb.repository.FavoriteRepository;
import com.fasterxml.jackson.databind.ObjectMapper;

import jakarta.transaction.Transactional;

@RestController

public class MyWebController {

    @Autowired
    FavoriteRepository albumsRepo;

    // PathVariable 방식 => localhost/musicSearch/aespa 로 접속
    @GetMapping(value = "/musicSearch/{term}")
    public MusicList musicSearchByPath(@PathVariable String term) {
        RestTemplate restTemplate = new RestTemplate();

        try {
            String response = restTemplate.getForObject("https://itunes.apple.com/search?term={term}&entity=album",
                    String.class);
            ObjectMapper mapper = new ObjectMapper();
            MusicList list = mapper.readValue(response, MusicList.class);
            System.out.println(list.getResultCount());
            return list;
        } catch (IOException e) {
            System.out.println(e.toString());
            return null;
        }
    }

    // Query Param 방식 => localhost/musicSearch?term=aespa 로 접속
    @GetMapping(value = "/musicSearch")
    public MusicList musicSearchByParam(@RequestParam String term) {
        RestTemplate restTemplate = new RestTemplate();

        try {
            String response = restTemplate.getForObject("https://itunes.apple.com/search?term={term}&entity=album",
                    String.class);
            ObjectMapper mapper = new ObjectMapper();
            MusicList list = mapper.readValue(response, MusicList.class);
            System.out.println(list.getResultCount());
            return list;
        } catch (IOException e) {
            System.out.println(e.toString());
            return null;
        }
    }

    // Get Favorite Music list from Database

    @GetMapping(value = "/likes")
    public List<FavoriteMusic> getLikes() {

        try {

            return albumsRepo.findAll();

        } catch (Exception e) {

            System.out.println(e.toString());

            return null;

        }

    }

    @PostMapping(value = "/likes")
    @Transactional
    public int postLikes(@RequestBody FavoriteMusicRequestDto favorite) {
        FavoriteMusic music = albumsRepo.save(favorite.toEntity());
        if (music != null) {
            return 1;
        } else {
            return 0;
        }
    }

}