{"id":38344,"date":"2024-11-01T17:17:45","date_gmt":"2024-11-01T17:17:45","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=38344"},"modified":"2024-11-26T06:44:35","modified_gmt":"2024-11-26T06:44:35","slug":"express-%ea%b0%9c%eb%b0%9c-%ea%b0%95%ec%a2%8c-%eb%b9%84%eb%8f%99%ea%b8%b0-%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%98%eb%b0%8d-%eb%b0%8f-%ec%84%b1%eb%8a%a5-%ec%b5%9c%ec%a0%81%ed%99%94-%ea%b8%b0%eb%b2%95","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/38344\/","title":{"rendered":"Express \uac1c\ubc1c \uac15\uc88c, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \uc131\ub2a5 \ucd5c\uc801\ud654 \uae30\ubc95"},"content":{"rendered":"

<\/p>\n

Express.js\ub294 Node.js\ub97c \uae30\ubc18\uc73c\ub85c \ud55c \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ud504\ub808\uc784\uc6cc\ud06c\ub85c, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ud1b5\ud574 \uace0\uc131\ub2a5\uc758 \uc11c\ubc84\ub97c \uac1c\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 Express\uc5d0\uc11c \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \uc774\ub97c \ud1b5\ud574 \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uae30\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

1. \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc774\ub780?<\/h2>\n

\ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc740 \ud504\ub85c\uadf8\ub7a8\uc758 \uc2e4\ud589 \ud750\ub984\uc744 \ub2e8\uc21c\ud654\ud558\uba74\uc11c\ub3c4 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4. \uc804\ud1b5\uc801\uc778 \ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \ubc29\uc2dd\uc5d0\uc11c\ub294 \ud55c \uc791\uc5c5\uc774 \uc644\ub8cc\ub420 \ub54c\uae4c\uc9c0 \ub2e4\ub978 \uc791\uc5c5\uc774 \ub300\uae30\ud558\uac8c \ub418\ubbc0\ub85c, I\/O \uc791\uc5c5\uc744 \ud3ec\ud568\ud55c \uc791\uc5c5\uc758 \ucc98\ub9ac \uc18d\ub3c4\uac00 \ub290\ub824\uc9c0\ub294 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubc18\uba74 \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc740 \uc791\uc5c5\uc774 \uc644\ub8cc\ub420 \ub54c\uae4c\uc9c0 \ub300\uae30\ud558\uc9c0 \uc54a\uace0, \ub2e4\ub978 \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n

1.1 \ube44\ub3d9\uae30\uc640 \ucf5c\ubc31<\/h3>\n

\ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc5d0\uc11c \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \uac1c\ub150\uc740 \ucf5c\ubc31 \ud568\uc218\uc785\ub2c8\ub2e4. \ucf5c\ubc31 \ud568\uc218\ub294 \ud2b9\uc815 \uc791\uc5c5\uc774 \uc644\ub8cc\ub41c \ud6c4 \ud638\ucd9c\ub418\ub294 \ud568\uc218\ub97c \ub73b\ud569\ub2c8\ub2e4. Express.js\uc5d0\uc11c\ub3c4 \uc774\ub7ec\ud55c \ucf5c\ubc31 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \ucc98\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n

const fs = require('fs');\n\nfs.readFile('example.txt', 'utf-8', function(err, data) {\n    if (err) throw err;\n    console.log(data);\n});<\/code><\/pre>\n
1.2 \ud504\ub85c\ubbf8\uc2a4(Promise)<\/h3>\n
\ucf5c\ubc31 \ud328\ud134\uc740 \uc911\ucca9\uc774 \uc2ec\ud654\ub420 \uacbd\uc6b0 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uc774 \ub5a8\uc5b4\uc9c0\ub294 “\uc9c0\uc625”\uc73c\ub85c \uc774\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud504\ub85c\ubbf8\uc2a4\ub294 \uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \ub4f1\uc7a5\ud55c \uac1d\uccb4\uc785\ub2c8\ub2e4. \ud504\ub85c\ubbf8\uc2a4\ub294 \ube44\ub3d9\uae30 \uc791\uc5c5\uc758 \uc644\ub8cc \ub610\ub294 \uc2e4\ud328\ub97c \ub098\ud0c0\ub0b4\uba70, \uadf8 \uacb0\uacfc\uac12\uc744 \ucc98\ub9ac\ud558\uae30 \uc704\ud55c \uba54\uc11c\ub4dc\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n
const readFilePromise = (file) => {\n    return new Promise((resolve, reject) => {\n        fs.readFile(file, 'utf-8', (err, data) => {\n            if (err) reject(err);\n            resolve(data);\n        });\n    });\n};\n\nreadFilePromise('example.txt')\n    .then((data) => console.log(data))\n    .catch((err) => console.error(err));<\/code><\/pre>\n
2. Express.js\uc5d0\uc11c\uc758 \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d<\/h2>\n
Express.js\ub294 \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ucd5c\ub300\ud55c \ud65c\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \ube44\ub3d9\uae30 \uc791\uc5c5\uc744 \ud6a8\uc728\uc801\uc73c\ub85c \ucc98\ub9ac\ud558\uc5ec \uc11c\ubc84\uc758 \uc751\ub2f5 \uc18d\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
2.1 \ube44\ub3d9\uae30 \ubbf8\ub4e4\uc6e8\uc5b4<\/h3>\n
Express\uc5d0\uc11c\ub294 \ub77c\uc6b0\ud130\uc640 \ubbf8\ub4e4\uc6e8\uc5b4\ub97c \uc815\uc758\ud560 \ub54c \ube44\ub3d9\uae30 \ud568\uc218\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ube44\ub3d9\uae30 \uc791\uc5c5\uc774 \uc644\ub8cc\ub420 \ub54c\uae4c\uc9c0 \ub300\uae30\ud558\uba70, \uacb0\uacfc\uc5d0 \ub530\ub77c \ub2e4\uc74c \ubbf8\ub4e4\uc6e8\uc5b4\ub85c \ub118\uc5b4\uac00\ub294 \ubc29\uc2dd\uc73c\ub85c \ucc98\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
app.get('\/async-example', async (req, res) => {\n    try {\n        const data = await readFilePromise('example.txt');\n        res.send(data);\n    } catch (err) {\n        res.status(500).send('Error reading file');\n    }\n});<\/code><\/pre>\n
2.2 async\/await<\/h3>\n
async\/await \uad6c\ubb38\uc740 \ud504\ub85c\ubbf8\uc2a4 \uae30\ubc18\uc758 \ube44\ub3d9\uae30 \ucf54\ub4dc\ub97c \ub354\uc6b1 \uac04\ub2e8\ud558\uac8c \uc791\uc131\ud560 \uc218 \uc788\uac8c \ub3c4\uc640\uc90d\ub2c8\ub2e4. async \ud0a4\uc6cc\ub4dc\uac00 \ubd99\uc740 \ud568\uc218\ub294 \ud56d\uc0c1 \ud504\ub85c\ubbf8\uc2a4\ub97c \ubc18\ud658\ud558\uba70, await \ud0a4\uc6cc\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \ud504\ub85c\ubbf8\uc2a4\uac00 \ucc98\ub9ac\ub420 \ub54c\uae4c\uc9c0 \uae30\ub2e4\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
app.get('\/user\/:id', async (req, res) => {\n    try {\n        const user = await getUserById(req.params.id);\n        res.json(user);\n    } catch (error) {\n        res.status(500).send('Error fetching user');\n    }\n});<\/code><\/pre>\n
3. \uc131\ub2a5 \ucd5c\uc801\ud654 \uae30\ubc95<\/h2>\n
Express \uc11c\ubc84\uc758 \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud574\uc11c\ub294 \ub2e4\uc591\ud55c \uae30\ubc95\uacfc \uc804\ub7b5\uc744 \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \uba87 \uac00\uc9c0 \uc8fc\uc694 \uc131\ub2a5 \ucd5c\uc801\ud654 \uae30\ubc95\uc5d0 \ub300\ud574 \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n
3.1 \uce90\uc2f1<\/h3>\n
\ub370\uc774\ud130\ub97c \uce90\uc2f1\ud558\ub294 \uac83\uc740 \uc131\ub2a5 \ud5a5\uc0c1\uc5d0 \ub9e4\uc6b0 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc5ec\ub7ec \uc0ac\uc6a9\uc790\uac00 \ub3d9\uc77c\ud55c \ub370\uc774\ud130\ub97c \uc694\uccad\ud560 \uacbd\uc6b0, \uce90\uc2dc\ub41c \ub370\uc774\ud130\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubd88\ud544\uc694\ud55c \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc870\ud68c\ub97c \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
const cache = {};\n\napp.get('\/data', async (req, res) => {\n    if (cache['data']) {\n        return res.send(cache['data']);\n    }\n    \n    const data = await fetchDataFromDB();\n    cache['data'] = data; \/\/ \uce90\uc2dc \uc800\uc7a5\n    res.send(data);\n});<\/code><\/pre>\n
3.2 gzip \uc555\ucd95<\/h3>\n
\uc751\ub2f5 \ub370\uc774\ud130\ub97c gzip\uc73c\ub85c \uc555\ucd95\ud558\uba74 \ub370\uc774\ud130 \uc804\uc1a1 \uc18d\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. Express\uc5d0\uc11c \uc774\ub97c \uc27d\uac8c \ud65c\uc131\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
const compression = require('compression');\napp.use(compression());<\/code><\/pre>\n
3.3 \ub85c\uae45 \ubc0f \ubaa8\ub2c8\ud130\ub9c1<\/h3>\n
\uc11c\ubc84\uc758 \uc131\ub2a5\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud558\uace0, \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud588\uc744 \ub54c \uc774\ub97c \ucd94\uc801\ud558\uae30 \uc704\ud574 \ub85c\uae45 \uc2dc\uc2a4\ud15c\uc744 \uad6c\ucd95\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \ub85c\uae45 \uc815\ubcf4\ub97c \ubc14\ud0d5\uc73c\ub85c \ubcd1\ubaa9 \ud604\uc0c1\uc744 \ucc3e\uc544\ub0b4\uace0 \uc131\ub2a5\uc744 \uac1c\uc120\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
const morgan = require('morgan');\napp.use(morgan('combined'));<\/code><\/pre>\n
3.4 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ucd5c\uc801\ud654<\/h3>\n
\ub370\uc774\ud130\ubca0\uc774\uc2a4 \ucffc\ub9ac\ub97c \ucd5c\uc801\ud654\ud558\uc5ec \uc751\ub2f5 \uc18d\ub3c4\ub97c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc778\ub371\uc2a4\ub97c \uc801\uc808\ud788 \ud65c\uc6a9\ud558\uace0, \ud544\uc694 \uc5c6\ub294 \ub370\uc774\ud130\ub294 \ucd5c\ub300\ud55c \uc870\ud68c\ud558\uc9c0 \uc54a\ub3c4\ub85d \ucffc\ub9ac\ub97c \uc124\uacc4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
4. \uacb0\ub860<\/h2>\n
Express.js\uc5d0\uc11c \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ud65c\uc6a9\ud558\uba74 \uc11c\ubc84\uc758 \uc131\ub2a5\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, \ub2e4\uc591\ud55c \uc131\ub2a5 \ucd5c\uc801\ud654 \uae30\ubc95\uc744 \uc801\uc6a9\ud558\uc5ec \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc751\ub2f5 \uc18d\ub3c4\uc640 \uc548\uc815\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\ub97c \ud1b5\ud574 \uc774\ub7ec\ud55c \uae30\ubc95\ub4e4\uc744 \uc798 \uc774\ud574\ud558\uace0 \ud65c\uc6a9\ud558\uc2dc\uae38 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n
5. \ucd94\uac00 \uc790\ub8cc<\/h2>\n
Express.js\uc758 \uacf5\uc2dd \ubb38\uc11c \ubc0f \ub2e4\uc591\ud55c \uc790\ub8cc\ub4e4\uc744 \ud1b5\ud574 \ub354\uc6b1 \uae4a\uc774 \uc788\ub294 \ud559\uc2b5\uc744 \uc9c4\ud589\ud574 \ubcf4\uc138\uc694. \ud2b9\ud788, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \uad00\ub828 \ub0b4\uc6a9\uc740 JavaScript\uc758 \uae30\ucd08\uc640 \ud568\uaed8 \uc775\ud600\ub450\uba74 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
Express.js\ub294 Node.js\ub97c \uae30\ubc18\uc73c\ub85c \ud55c \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ud504\ub808\uc784\uc6cc\ud06c\ub85c, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc744 \ud1b5\ud574 \uace0\uc131\ub2a5\uc758 \uc11c\ubc84\ub97c \uac1c\ubc1c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 Express\uc5d0\uc11c \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc758 \uc6d0\ub9ac\ub97c \uc774\ud574\ud558\uace0, \uc774\ub97c \ud1b5\ud574 \uc131\ub2a5\uc744 \ucd5c\uc801\ud654\ud558\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uae30\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. 1. \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc774\ub780? \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d\uc740 \ud504\ub85c\uadf8\ub7a8\uc758 \uc2e4\ud589 \ud750\ub984\uc744 \ub2e8\uc21c\ud654\ud558\uba74\uc11c\ub3c4 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \uae30\ubc95\uc785\ub2c8\ub2e4. \uc804\ud1b5\uc801\uc778 \ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \ubc29\uc2dd\uc5d0\uc11c\ub294 \ud55c \uc791\uc5c5\uc774 \uc644\ub8cc\ub420 \ub54c\uae4c\uc9c0 \ub2e4\ub978 \uc791\uc5c5\uc774 \ub300\uae30\ud558\uac8c \ub418\ubbc0\ub85c, … \ub354 \ubcf4\uae30 “Express \uac1c\ubc1c \uac15\uc88c, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \uc131\ub2a5 \ucd5c\uc801\ud654 \uae30\ubc95”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[181],"tags":[],"class_list":["post-38344","post","type-post","status-publish","format-standard","hentry","category-express"],"yoast_head":"\nExpress \uac1c\ubc1c \uac15\uc88c, \ube44\ub3d9\uae30 \ud504\ub85c\uadf8\ub798\ubc0d \ubc0f \uc131\ub2a5 \ucd5c\uc801\ud654 \uae30\ubc95 - 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