[PROJECT NO.3] 11/23 : 아임포트 API 토큰정보 넘기고 정보 받기

package kosta.web.mvc.controller;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.*;

@RestController
public class SelfCertificationController {

    public static final String IMPORT_TOKEN_URL = "https://api.iamport.kr/users/getToken";
    public static final String IMPORT_REQUEST_URL = "https://api.iamport.kr/certifications/******?_token=";

    public static final String KEY = "*********";
    public static final String SECRET = "*********";

    /**
     * 아임포트 인증(토큰)을 받아주는 함수
     */
    public String getImportToken() {
        String result = "";
        HttpClient client = HttpClientBuilder.create().build();
        HttpPost post = new HttpPost(IMPORT_TOKEN_URL);
        Map<String,String> m  =new HashMap<String,String>();
        m.put("imp_key", KEY);
        m.put("imp_secret", SECRET);
        try {
            post.setEntity(new UrlEncodedFormEntity(convertParameter(m)));
            HttpResponse res = client.execute(post);
            ObjectMapper mapper = new ObjectMapper();
            String body = EntityUtils.toString(res.getEntity());
            JsonNode rootNode = mapper.readTree(body);
            JsonNode resNode = rootNode.get("response");
            result = resNode.get("access_token").asText();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }

    // Map을 사용해서 Http요청 파라미터를 만들어 주는 함수
    private List<NameValuePair> convertParameter(Map<String,String> paramMap){
        List<NameValuePair> paramList = new ArrayList<NameValuePair>();

        Set<Map.Entry<String,String>> entries = paramMap.entrySet();

        for(Map.Entry<String,String> entry : entries) {
            paramList.add(new BasicNameValuePair(entry.getKey(), entry.getValue()));
        }
        return paramList;
    }

    // 본인인증을 한 회원 정보를 받는 함수
    @RequestMapping("/certifications")
    public String getCertifications(String imp_uid) {
        String birthday = "";
        HttpClient client = HttpClientBuilder.create().build();
        HttpGet get = new HttpGet(IMPORT_REQUEST_URL+imp_uid);
        get.setHeader("Authorization", getImportToken());

        try {
            HttpResponse res = client.execute(get);
            ObjectMapper mapper = new ObjectMapper();
            String body = EntityUtils.toString(res.getEntity());
            JsonNode rootNode = mapper.readTree(body);
            JsonNode resNode = rootNode.get("response");
            birthday = resNode.get("birthday").asText();
            System.out.println("***************************************");
            System.out.println("birthday = "+birthday);
            System.out.println("***************************************");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return birthday;
    }

    @RequestMapping("/aa")
    public void aaa(String imp_uid) {
        System.out.println(imp_uid);
    }

    @RequestMapping("/self")
    public void self() {
        System.out.println("*****************************************");
        System.out.println("SelfCertificationController 의 self 영역");
        System.out.println("*****************************************");
    }
}