🤔 백엔드 기술적 도전 생각해보기

• 캐싱 처리
  • 크롤링
• redis을 통한 성능 개선

크롤링 인터페이스

최종적으로 특정 테마의 타임테이블 반환

getTimeTableByTheme({shop, theme, date})

• 결과

  [
    { time: '14:50', possible: true },
    { time: '16:00', possible: true },
    { time: '17:10', possible: true },
    { time: '18:20', possible: true },
    { time: '19:30', possible: true },
    { time: '20:40', possible: true },
    { time: '21:50', possible: true }
  ]
  

특정 테마를 못가져오는 경우 → export 필요없음

getTimeTableListByShop({shop, date})

{
    '이불밖은 위험해': [
      { time: '11:10', possible: false },
      { time: '12:30', possible: false },
      { time: '13:50', possible: true },
      { time: '15:10', possible: true },
      { time: '16:30', possible: true },
      { time: '17:50', possible: true },
      { time: '19:10', possible: true },
      { time: '20:30', possible: false },
      { time: '21:50', possible: true },
      { time: '23:10', possible: true }
    ],
    'B아파트 13동 1313호': [
      { time: '11:00', possible: false },
      { time: '12:20', possible: false },
      { time: '13:40', possible: true },
      { time: '15:00', possible: true },
      { time: '16:20', possible: true },
      { time: '17:40', possible: false },
      { time: '19:00', possible: true },
      { time: '20:20', possible: false },
      { time: '21:40', possible: false },
      { time: '23:00', possible: false }
    ],
    'MONSTER:10800': [
      { time: '10:50', possible: false },
      { time: '12:20', possible: false },
      { time: '13:50', possible: true },
      { time: '15:20', possible: true },
      { time: '16:50', possible: true },
      { time: '18:20', possible: true },
      { time: '19:50', possible: true },
      { time: '21:20', possible: true },
      { time: '22:50', possible: true }
    ],
    '다시봄': [
      { time: '10:45', possible: false },
      { time: '12:30', possible: false },
      { time: '14:15', possible: true },
      { time: '16:00', possible: true },
      { time: '17:45', possible: true },
      { time: '19:30', possible: false },
      { time: '21:15', possible: false },
      { time: '23:00', possible: true }
    ],
    '썸': [
      { time: '10:50', possible: false },
      { time: '12:10', possible: false },
      { time: '13:30', possible: true },
      { time: '14:50', possible: true },
      { time: '16:10', possible: true },
      { time: '17:30', possible: true },
      { time: '18:50', possible: false },
      { time: '20:10', possible: true },
      { time: '21:30', possible: true },
      { time: '22:50', possible: true }
    ],
    'SOUL CHASER - 실종': [
      { time: '10:30', possible: false },
      { time: '11:30', possible: false },
      { time: '12:30', possible: false },
      { time: '13:30', possible: false },
      { time: '14:30', possible: false },
      { time: '15:30', possible: false },
      { time: '16:30', possible: false },
      { time: '17:30', possible: false },
      { time: '18:30', possible: false },
      { time: '19:30', possible: false }
    ]
  }

키이스케이프

함수

import axios from "axios";
import * as cheerio from "cheerio";

const BASE_URL = "<https://keyescape.co.kr/web/rev.theme_time.php>";

const getInfoByData = async ({ shop, theme, date }) => {
  try {
    const res = await axios({
      method: "post",
      url: `${BASE_URL}?zizum_num=${shop}&rev_days=${date}&theme_num=${theme}`,
    });
    return res.data;
  } catch (error) {
    return null;
  }
};

export const getTimeTableByTheme = async ({ shop, theme, date }) => {
  const data = await getInfoByData({ shop, theme, date });

  const $ = cheerio.load(data);
  const liTags = $("li");

  const timeArray = [];

  liTags.each((index, element) => {
    const checkClass = $(element).attr("class").trim();
    const checkTime = $(element).text().trim();

    const timeObject = {
      time: checkTime,
    };

    if (checkClass === "possible") {
      timeObject["possible"] = true;
    }

    if (checkClass === "impossible") {
      timeObject["possible"] = false;
    }

    timeArray.push(timeObject);
  });

  return timeArray;
};

/* 호출 예시
getTimeTableByTheme({
  shop: 20,
  theme: 61,
  date: "2023-11-02",
});

*/

응답 예시

[
  { time: '14:45', possible: true },
  { time: '15:40', possible: false },
  { time: '16:35', possible: false },
  { time: '17:30', possible: false },
  { time: '18:25', possible: false },
  { time: '19:20', possible: false },
  { time: '20:15', possible: false },
  { time: '21:10', possible: false },
  { time: '22:05', possible: false }
]