카카오페이 API 변경 오류

예전에 사용하던 카카오페이 코드가 제대로 작동을 안하길래 찾아보니

 

https://devtalk.kakao.com/t/api/134037

[공지] 카카오페이 API 제공 종료 안내

24년 2월 이후로 API가 새로 바뀌었다

 

이에따라서 service 코드를 약간 수정해주었다

 

기존 API service코드 (24년 2월 이전 구 코드)

 

host주소와 header부분(secret키와 json방식인코딩) 그리고 LinkedMultiValueMap대신 HashMap을 사용하게 바뀐듯

public class KakaoPayService {
	private static final String HOST = "https://kapi.kakao.com";
	// 카카오 Admin 키
	private static final String kakaoKey = "카카오AK키";

	private KakaoPayReadyVO kakaoPayReadyVO;
	private KakaoPayApprovalVO kakaoPayApprovalVO;

	public String kakaoPayReady(Map<String, String> param) {

		RestTemplate restTemplate = new RestTemplate();

		// 서버로 요청할 Header
		HttpHeaders headers = new HttpHeaders();
		headers.add("Authorization", "KakaoAK " + kakaoKey);
		headers.add("Content-type", "application/x-www-form-urlencoded;charset=utf-8");
		headers.add("Accept", MediaType.APPLICATION_JSON_VALUE);
		
		// 서버로 요청할 Body
		MultiValueMap<String, String> params = new LinkedMultiValueMap<String, String>();
		params.add("cid", "TC0ONETIME");
		params.add("partner_order_id", "1001");
		params.add("partner_user_id", "test12");
		params.add("item_name", param.get("item_name"));
		params.add("quantity", param.get("quantity"));
		params.add("total_amount", param.get("total_amount"));
		params.add("tax_free_amount", "500");
		params.add("approval_url", "http://localhost/mvc/kakaoPaySuccess");
		params.add("cancel_url", "http://localhost/mvc/kakaoPayCancel");
		params.add("fail_url", "http://localhost/mvc/kakaoPaySuccessFail");
		params.add("msg", "결제가 완료되었습니다.");


		HttpEntity<MultiValueMap<String, String>> body = new HttpEntity<MultiValueMap<String, String>>(params, headers);
		System.out.println(body);
		try {
			kakaoPayReadyVO = restTemplate.postForObject(new URI(HOST + "/v1/payment/ready"), body,
					KakaoPayReadyVO.class);

			log.info("" + kakaoPayReadyVO);

			return kakaoPayReadyVO.getNext_redirect_pc_url();

		} catch (RestClientException e) {
			e.printStackTrace();
		} catch (URISyntaxException e) {
			e.printStackTrace();
		}

		return "/";
	}

	public KakaoPayApprovalVO kakaoPayInfo(String pg_token, Map<String, String> param) {
		log.info("KakaoPayInfoVO............................................");
		log.info("-----------------------------");

		RestTemplate restTemplate = new RestTemplate();

		// 서버로 요청할 Header
		HttpHeaders headers = new HttpHeaders();
		headers.add("Authorization", "KakaoAK " + kakaoKey);
		headers.add("Accept", MediaType.APPLICATION_JSON_VALUE);
		headers.add("Content-Type", MediaType.APPLICATION_FORM_URLENCODED_VALUE + ";charset=UTF-8");

		// 서버로 요청할 Body
		MultiValueMap<String, String> params = new LinkedMultiValueMap<String, String>();
		params.add("cid", "TC0ONETIME");
		params.add("tid", kakaoPayReadyVO.getTid());
		params.add("partner_order_id", "1001");
		params.add("partner_user_id", "test12");
		params.add("pg_token", pg_token);
		params.add("total_amount", param.get("total_amount"));

		HttpEntity<MultiValueMap<String, String>> body = new HttpEntity<MultiValueMap<String, String>>(params, headers);

		try {
			kakaoPayApprovalVO = restTemplate.postForObject(new URI(HOST + "/v1/payment/approve"), body,
					KakaoPayApprovalVO.class);
			log.info("" + kakaoPayApprovalVO);

			return kakaoPayApprovalVO;

		} catch (RestClientException e) {
			e.printStackTrace();
		} catch (URISyntaxException e) {
			e.printStackTrace();
		}
		return null;
	}

 

 

 

수정 API service코드 (24년 2월 이후)

@Log4j2
@Service
public class KakaoPayService {
	private static final String HOST = "https://open-api.kakaopay.com/online";
	
	@Value("${kakao.kakaopay.secretKeyDev}")
	 private String secretKey;
											

	private KakaoPayReadyVO kakaoPayReadyVO;
	private KakaoPayApprovalVO kakaoPayApprovalVO;

	public String kakaoPayReady(Map<String, String> param) {

		RestTemplate restTemplate = new RestTemplate();

		// 서버로 요청할 Header
		HttpHeaders headers = new HttpHeaders();
		headers.add("Authorization", "SECRET_KEY " + secretKey);
		headers.add("Content-type", "application/json");
//		headers.add("Accept", MediaType.APPLICATION_JSON_VALUE);
		
		// 서버로 요청할 Body
		Map<String, String> params = new HashMap<String, String>();
		params.put("cid", "TC0ONETIME");
		params.put("partner_order_id", "1002");
		params.put("partner_user_id", "Atriel");
		params.put("item_name", param.get("item_name"));
		params.put("quantity", param.get("quantity"));
		params.put("total_amount", param.get("total_amount"));
		params.put("tax_free_amount", "500");
		params.put("approval_url", "http://localhost/kakao/kakaoPaySuccess");
		params.put("cancel_url", "http://localhost/kakao/kakaoPayCancel");
		params.put("fail_url", "http://localhost/kakao/kakaoPaySuccessFail");
		params.put("msg", "결제가 완료되었습니다.");


		HttpEntity<Map<String, String>> body = new HttpEntity<>(params, headers); //new HttpEntity<Map<String, String>>(params, headers);
		System.out.println("dbg1 body: " + body);
		try {
			kakaoPayReadyVO = restTemplate.postForObject(new URI(HOST + "/v1/payment/ready"), body,
					KakaoPayReadyVO.class);

			log.info("dbg2: " + kakaoPayReadyVO);

			return kakaoPayReadyVO.getNext_redirect_pc_url();

		} catch (RestClientException e) {
			e.printStackTrace();
		} catch (URISyntaxException e) {
			e.printStackTrace();
		}

		return "/";
	}

	public KakaoPayApprovalVO kakaoPayInfo(String pg_token, Map<String, String> param) {
		log.info("KakaoPayInfoVO............................................");
		log.info("-----------------------------");

		RestTemplate restTemplate = new RestTemplate();

		// 서버로 요청할 Header
		HttpHeaders headers = new HttpHeaders();
		headers.add("Authorization", "SECRET_KEY " + secretKey);
		headers.add("Content-type", "application/json");
//		headers.add("Accept", MediaType.APPLICATION_JSON_VALUE);
//		headers.add("Content-Type", MediaType.APPLICATION_FORM_URLENCODED_VALUE + ";charset=UTF-8");

		// 서버로 요청할 Body
		Map<String, String> params = new HashMap<String, String>();
		params.put("cid", "TC0ONETIME");
		params.put("tid", kakaoPayReadyVO.getTid());
		params.put("partner_order_id", "1002");
		params.put("partner_user_id", "Atriel");
		params.put("pg_token", pg_token);
		params.put("total_amount", param.get("total_amount"));

		HttpEntity<Map<String, String>> body = new HttpEntity<>(params, headers);

		try {
			kakaoPayApprovalVO = restTemplate.postForObject(new URI(HOST + "/v1/payment/approve"), body,
					KakaoPayApprovalVO.class);
			log.info("" + kakaoPayApprovalVO);

			return kakaoPayApprovalVO;

		} catch (RestClientException e) {
			e.printStackTrace();
		} catch (URISyntaxException e) {
			e.printStackTrace();
		}
		return null;
	}
}