콜백지옥좀 도와주세요 ㅠㅠ

Question

const express &#61; require(&#34;express&#34;); const router &#61; express.Router(); const { Character } &#61; require(&#34;../models/Character&#34;); const axios &#61; require(&#34;axios&#34;); const cheerio &#61; require(&#34;cheerio&#34;); //&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61; // Character //&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61;&#61; const getHtml &#61; async (name) &#61;> { try { const URI_Character &#61; encodeURI(name); return await axios.get( &#96;https://lostark.game.onstove.com/Profile/Character/${URI_Character}&#96; ); } catch (error) { console.log(error); } }; const getAllCharacters &#61; ($) &#61;> { let characterList &#61; []; const $bodyList &#61; $(&#34;#expand-character-list > ul > li&#34;) .children(&#34;span&#34;) .children(&#34;button&#34;) .children(&#34;span&#34;); $bodyList.map((i, el) &#61;> { characterList[i] &#61; $(el).text(); return characterList[i]; }); return characterList; //원정대의 모든 캐릭터명을 배열에 담음 }; router.post(&#34;/getCharacter&#34;, (req, res) &#61;> { Character.findOne({ user: req.body.userId }).exec((err, user) &#61;> { if (!user) { getHtml(req.body.name) .then((html) &#61;> { const $ &#61; cheerio.load(html.data); const characterList &#61; getAllCharacters($); return characterList; }) .then((characterList) &#61;> { characterList.forEach((characterName, i) &#61;> { getHtml(characterName).then((html) &#61;> { const $ &#61; cheerio.load(html.data); const className &#61; $(&#34;div.profile-character-info > img&#34;).attr( &#34;alt&#34; ); const level &#61; $(&#34;div.level-info2__item > span:nth-child(2)&#34;) .text() .substring(3) .replace(&#34;,&#34;, &#34;&#34;); const characterInfo &#61; { user: req.body.userId, name: characterName, className, level, }; const character &#61; new Character(characterInfo); character.save((err, doc) &#61;> { if (err) return res.status(400).send(err); }); }); }); res.status(200).json({ success: true }); }); } }); }); module.exports &#61; router;취업 전 프론트엔드 프로젝트를 하면서 Mongoose와 Express를 맛보는 중인데요함수에 forEach에 여러가지 때문에 점점 중첩이 심해지더라구요.이 정도면 콜백지옥이 심각한 편인건가요?어떻게 해결할 수 있을까요??

yjj8353 · Answer

await / async 못쓰나요?전부 then catch 로만 구현하셨네요.

yeori · Answer

html을 파싱하는 코드와 디비에 저장하는 코드, 그리고 응답 전송 코드가 뒤섞여있어서 그렇습니다.

콜백지옥좀 도와주세요 ㅠㅠ

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