{"id":38338,"date":"2024-11-01T17:17:43","date_gmt":"2024-11-01T17:17:43","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=38338"},"modified":"2024-11-26T06:44:36","modified_gmt":"2024-11-26T06:44:36","slug":"express-%ea%b0%9c%eb%b0%9c-%ea%b0%95%ec%a2%8c-%ec%9b%b9%ec%86%8c%ec%bc%93%ec%9d%84-%ed%99%9c%ec%9a%a9%ed%95%9c-%ec%8b%a4%ec%8b%9c%ea%b0%84-%ec%95%a0%ed%94%8c%eb%a6%ac%ec%bc%80%ec%9d%b4%ec%85%98","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/38338\/","title":{"rendered":"Express \uac1c\ubc1c \uac15\uc88c, \uc6f9\uc18c\ucf13\uc744 \ud65c\uc6a9\ud55c \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc608\uc81c"},"content":{"rendered":"<p><body><\/p>\n<p>\uc6f9 \uac1c\ubc1c\uc758 \ubc1c\uc804\uc5d0 \ub530\ub77c \uc0ac\uc6a9\uc790\ub294 \uc810\uc810 \ub354 \uc2e4\uc2dc\uac04\uc73c\ub85c \uc0c1\ud638\uc791\uc6a9\ud558\ub294 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uae30\ub300\ud558\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc694\uad6c\ub97c \ucda9\uc871\uc2dc\ud0a4\uae30 \uc704\ud574 \uc6f9\uc18c\ucf13(WebSocket) \ud504\ub85c\ud1a0\ucf5c\uc740 \ud544\uc218\uc801\uc778 \uc694\uc18c\ub85c \uc790\ub9ac\uc7a1\uc558\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 Node.js\uc758 Express \ud504\ub808\uc784\uc6cc\ud06c\uc640 \uc6f9\uc18c\ucf13\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\uc6f9\uc18c\ucf13\uc774\ub780?<\/h2>\n<p>\uc6f9\uc18c\ucf13\uc740 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \uc804\uc774\uc911(Full-Duplex) \ud1b5\uc2e0\uc744 \uac00\ub2a5\ud558\uac8c \ud558\ub294 \ud504\ub85c\ud1a0\ucf5c\uc785\ub2c8\ub2e4. \uc774\ub294 HTTP \uc694\uccad\/\uc751\ub2f5 \ubaa8\ub378\uc5d0 \ube44\ud574 \ud6a8\uc728\uc801\uc774\uba70, \ud2b9\ud788 \uc2e4\uc2dc\uac04 \ub370\uc774\ud130 \uc804\uc1a1\uc774 \ud544\uc694\ud55c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc6f9\uc18c\ucf13\uc744 \uc0ac\uc6a9\ud558\uba74 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \uc5f0\uacb0\uc774 \uc9c0\uc18d\uc801\uc73c\ub85c \uc720\uc9c0\ub418\uba70, \ub370\uc774\ud130\uac00 \ud544\uc694\ud560 \ub54c\ub9c8\ub2e4 \uc5f0\uacb0\uc744 \uc124\uc815\ud560 \ud544\uc694\uac00 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uc6f9\uc18c\ucf13\uc758 \uc8fc\uc694 \ud2b9\uc9d5<\/h3>\n<ul>\n<li><strong>\uc804\uc774\uc911 \ud1b5\uc2e0 \uc9c0\uc6d0:<\/strong> \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84\uac00 \ub3d9\uc2dc\uc5d0 \ub370\uc774\ud130\ub97c \uc804\uc1a1\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\ub0ae\uc740 \ub808\uc774\ud134\uc2dc:<\/strong> \ube60\ub978 \ub370\uc774\ud130 \uc804\uc1a1\uc774 \uac00\ub2a5\ud558\uc5ec \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud6a8\uc728\uc801\uc778 \ub9ac\uc18c\uc2a4 \uc0ac\uc6a9:<\/strong> HTTP \ud504\ub85c\ud1a0\ucf5c\uc5d0 \ube44\ud574 \uc801\uc740 \ub9ac\uc18c\uc2a4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>Express\uc640 \uc6f9\uc18c\ucf13\uc73c\ub85c \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub9cc\ub4e4\uae30<\/h2>\n<p>\uc774\uc81c Express\uc640 <code>ws<\/code> \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4e4\uc5b4 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774\ubc88 \uc608\uc81c\uc5d0\uc11c\ub294 \uc0ac\uc6a9\uc790\uac00 \uc785\ub825\ud55c \uba54\uc2dc\uc9c0\ub97c \uc2e4\uc2dc\uac04\uc73c\ub85c \ub2e4\ub978 \uc0ac\uc6a9\uc790\uc5d0\uac8c \uc804\uc1a1\ud558\ub294 \ucc44\ud305 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3>1. \ud504\ub85c\uc81d\ud2b8 \uc124\uc815\ud558\uae30<\/h3>\n<pre><code>bash\nmkdir websocket-chat\ncd websocket-chat\nnpm init -y\nnpm install express ws\n<\/code><\/pre>\n<h3>2. \uc11c\ubc84 \ucf54\ub4dc \uc791\uc131\ud558\uae30<\/h3>\n<p>\ub514\ub809\ud1a0\ub9ac \ub0b4\uc5d0 <code>server.js<\/code> \ud30c\uc77c\uc744 \uc0dd\uc131\ud558\uace0 \ub2e4\uc74c \ucf54\ub4dc\ub97c \uc785\ub825\ud569\ub2c8\ub2e4:<\/p>\n<pre><code>javascript\nconst express = require('express');\nconst http = require('http');\nconst WebSocket = require('ws');\nconst path = require('path');\n\nconst app = express();\nconst server = http.createServer(app);\nconst wss = new WebSocket.Server({ server });\n\n\/\/ \uc815\uc801 \ud30c\uc77c \uc81c\uacf5\napp.use(express.static(path.join(__dirname, 'public')));\n\n\/\/ \ud074\ub77c\uc774\uc5b8\ud2b8 \uc5f0\uacb0 \uc774\ubca4\ud2b8\nwss.on('connection', (ws) =&gt; {\n    console.log('\uc0c8\ub85c\uc6b4 \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc5f0\uacb0\ub418\uc5c8\uc2b5\ub2c8\ub2e4.');\n\n    \/\/ \ud074\ub77c\uc774\uc5b8\ud2b8\ub85c\ubd80\ud130 \uba54\uc2dc\uc9c0\ub97c \ubc1b\uc744 \ub54c\n    ws.on('message', (message) =&gt; {\n        console.log(`\ubc1b\uc740 \uba54\uc2dc\uc9c0: ${message}`);\n        \n        \/\/ \ubaa8\ub4e0 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uac8c \uba54\uc2dc\uc9c0 \uc804\uc1a1\n        wss.clients.forEach((client) =&gt; {\n            if (client.readyState === WebSocket.OPEN) {\n                client.send(message);\n            }\n        });\n    });\n\n    \/\/ \ud074\ub77c\uc774\uc5b8\ud2b8 \uc5f0\uacb0 \uc885\ub8cc \uc774\ubca4\ud2b8\n    ws.on('close', () =&gt; {\n        console.log('\ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc5f0\uacb0\uc744 \uc885\ub8cc\ud588\uc2b5\ub2c8\ub2e4.');\n    });\n});\n\n\/\/ \uc11c\ubc84 \ud3ec\ud2b8 \uc124\uc815\nconst PORT = process.env.PORT || 3000;\nserver.listen(PORT, () =&gt; {\n    console.log(`\uc11c\ubc84\uac00 http:\/\/localhost:${PORT} \uc5d0\uc11c \uc2e4\ud589 \uc911\uc785\ub2c8\ub2e4.`);\n});\n<\/code><\/pre>\n<h3>3. \ud074\ub77c\uc774\uc5b8\ud2b8 \ucf54\ub4dc \uc791\uc131\ud558\uae30<\/h3>\n<p>\uc774\uc81c <code>public<\/code> \ub514\ub809\ud1a0\ub9ac\ub97c \uc0dd\uc131\ud558\uace0 \uadf8 \uc548\uc5d0 <code>index.html<\/code> \ud30c\uc77c\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc740 \ucf54\ub4dc\ub85c \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uc791\uc131\ud569\ub2c8\ub2e4:<\/p>\n<pre><code>html\n<!DOCTYPE html>\n\n<html lang=\"ko\">\n<head>\n    <meta charset=\"utf-8\"\/>\n    <meta content=\"width=device-width, initial-scale=1.0\" name=\"viewport\"\/>\n    <title>\uc6f9\uc18c\ucf13 \ucc44\ud305<\/title>\n    <style>\n        body { font-family: Arial, sans-serif; background: #f9f9f9; padding: 20px; }\n        #messages { list-style-type: none; padding: 0; }\n        li { padding: 8px; margin-bottom: 10px; background: #e7e7e7; }\n        #form { margin-top: 20px; }\n    <\/style>\n<\/head>\n<body>\n    <h1>\uc6f9\uc18c\ucf13 \ucc44\ud305 \uc560\ud50c\ub9ac\ucf00\uc774\uc158<\/h1>\n    <ul id=\"messages\"><\/ul>\n    <form action=\"\" id=\"form\">\n        <input autocomplete=\"off\" id=\"input\" placeholder=\"\uba54\uc2dc\uc9c0\ub97c \uc785\ub825\ud558\uc138\uc694...\"\/>\n        <button>\uc804\uc1a1<\/button>\n    <\/form>\n\n    <script>\n        const socket = new WebSocket('ws:\/\/localhost:3000');\n        \n        const form = document.getElementById('form');\n        const input = document.getElementById('input');\n        const messages = document.getElementById('messages');\n\n        \/\/ \uc11c\ubc84\ub85c\ubd80\ud130 \uba54\uc2dc\uc9c0\ub97c \ubc1b\uc744 \ub54c\n        socket.addEventListener('message', function(event) {\n            const li = document.createElement('li');\n            li.textContent = event.data;\n            messages.appendChild(li);\n        });\n\n        \/\/ \ud3fc \uc804\uc1a1 \uc774\ubca4\ud2b8 \ucc98\ub9ac\n        form.addEventListener('submit', function(event) {\n            event.preventDefault();\n            if (input.value) {\n                socket.send(input.value);\n                input.value = '';\n            }\n        });\n    <\/script>\n<\/body>\n<\/html>\n<\/code><\/pre>\n<h3>4. \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc2e4\ud589\ud558\uae30<\/h3>\n<p>\uc774\uc81c \uc11c\ubc84\ub97c \uc2e4\ud589\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ud130\ubbf8\ub110\uc5d0 \ub2e4\uc74c \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uc5ec \uc11c\ubc84\ub97c \uc2dc\uc791\ud569\ub2c8\ub2e4:<\/p>\n<pre><code>bash\nnode server.js\n<\/code><\/pre>\n<p>\uc11c\ubc84\uac00 \uc131\uacf5\uc801\uc73c\ub85c \uc2e4\ud589\ub418\uba74 \ube0c\ub77c\uc6b0\uc800\uc5d0\uc11c <code>http:\/\/localhost:3000<\/code>\ub85c \uc774\ub3d9\ud574\ubcf4\uc138\uc694. \uc5ec\ub7ec \uac1c\uc758 \ube0c\ub77c\uc6b0\uc800 \ud0ed\uc744 \uc5f4\uace0 \uba54\uc2dc\uc9c0\ub97c \uc785\ub825\ud558\uba74 \uc2e4\uc2dc\uac04\uc73c\ub85c \uc11c\ub85c\uc758 \uba54\uc2dc\uc9c0\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>\ucf54\ub4dc \ubd84\uc11d<\/h2>\n<h3>\uc11c\ubc84 \ucf54\ub4dc \ubd84\uc11d<\/h3>\n<p>\uc11c\ubc84 \ucf54\ub4dc\ub294 Express \uc11c\ubc84\ub97c \uc124\uc815\ud558\uace0, \uc6f9\uc18c\ucf13 \uc11c\ubc84\ub97c \uad6c\uc131\ud558\uc5ec \uba54\uc2dc\uc9c0\ub97c \ucc98\ub9ac\ud558\ub294 \ubd80\ubd84\uc774 \ud3ec\ud568\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. \uc8fc\uc694 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>Express\uc640 WS \uc124\uce58:<\/strong> Express\ub294 HTTP \uc11c\ubc84\ub97c \uad6c\uc131\ud558\uace0, WebSocket\uc740 \uc2e4\uc2dc\uac04 \ud1b5\uc2e0\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc815\uc801 \ud30c\uc77c \uc81c\uacf5:<\/strong> <code>app.use(express.static(...))<\/code>\ub97c \uc0ac\uc6a9\ud558\uc5ec <code>public<\/code> \ud3f4\ub354\uc758 \uc815\uc801 \ud30c\uc77c\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud074\ub77c\uc774\uc5b8\ud2b8 \uc5f0\uacb0 \uc774\ubca4\ud2b8:<\/strong> \uc6f9\uc18c\ucf13 \uc11c\ubc84\uc5d0 \uc0c8\ub85c\uc6b4 \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc5f0\uacb0\ub418\uba74 <code>connection<\/code> \uc774\ubca4\ud2b8\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uba54\uc2dc\uc9c0 \ucc98\ub9ac:<\/strong> \ud074\ub77c\uc774\uc5b8\ud2b8\ub85c\ubd80\ud130 \uba54\uc2dc\uc9c0\ub97c \ubc1b\uc73c\uba74, \uc774\ub97c \ub2e4\ub978 \ubaa8\ub4e0 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uac8c \uc804\uc1a1\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>\ud074\ub77c\uc774\uc5b8\ud2b8 \ucf54\ub4dc \ubd84\uc11d<\/h3>\n<p>\ud074\ub77c\uc774\uc5b8\ud2b8 \ucf54\ub4dc\uc5d0\uc11c\ub294 \uc6f9\uc18c\ucf13 \uc11c\ubc84\uc5d0 \uc5f0\uacb0\ud558\uace0, \uc0ac\uc6a9\uc790 \uc785\ub825\uc744 \ucc98\ub9ac\ud558\uc5ec \uc11c\ubc84\ub85c \uba54\uc2dc\uc9c0\ub97c \uc804\uc1a1\ud558\ub294 \uae30\ub2a5\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4. \uc8fc\uc694 \ubd80\ubd84\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uc6f9\uc18c\ucf13 \uc5f0\uacb0:<\/strong> <code>new WebSocket('ws:\/\/localhost:3000');<\/code>\ub97c \ud1b5\ud574 \uc11c\ubc84\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc11c\ubc84\ub85c\ubd80\ud130 \uba54\uc2dc\uc9c0 \uc218\uc2e0:<\/strong> <code>socket.addEventListener(...)<\/code>\ub85c \uc11c\ubc84\uc5d0\uc11c \uc218\uc2e0\ud55c \uba54\uc2dc\uc9c0\ub97c \ucc98\ub9ac\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\uc0ac\uc6a9\uc790 \uc785\ub825 \uc804\uc1a1:<\/strong> \uc0ac\uc6a9\uc790 \uc785\ub825\uc774 \uc788\uc744 \ub54c\ub9c8\ub2e4 \uc11c\ubc84\ub85c \uba54\uc2dc\uc9c0\ub97c \uc804\uc1a1\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\ucd94\uac00 \uae30\ub2a5 \ubc0f \ud655\uc7a5<\/h2>\n<p>\uc774\ubc88 \uc608\uc81c\uc5d0\uc11c\ub294 \uac04\ub2e8\ud55c \ucc44\ud305 \uae30\ub2a5\ub9cc\uc744 \uad6c\ud604\ud558\uc600\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc5ec\uae30\uc11c \ub354 \ub098\uc544\uac00 \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ucd94\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\uc0ac\uc6a9\uc790 \uc778\uc99d:<\/strong> \uc0ac\uc6a9\uc790 ID\ub098 \ub2c9\ub124\uc784\uc744 \ud1b5\ud574 \uac01 \uc0ac\uc6a9\uc790\ub97c \uc2dd\ubcc4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\uba54\uc2dc\uc9c0 \uc800\uc7a5:<\/strong> Redis\ub098 MongoDB\uc640 \uac19\uc740 \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uba54\uc2dc\uc9c0\ub97c \uc800\uc7a5\ud558\uace0, \uc0ac\uc6a9\uc790\uac00 \uc7ac\uc811\uc18d\ud588\uc744 \ub54c \uc774\uc804 \uba54\uc2dc\uc9c0\ub97c \ubd88\ub7ec\uc624\ub294 \uae30\ub2a5\uc744 \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\ub354 \ubcf5\uc7a1\ud55c UI:<\/strong> React, Vue.js \ub610\ub294 Angular\uc640 \uac19\uc740 \ud504\ub860\ud2b8\uc5d4\ub4dc \ud504\ub808\uc784\uc6cc\ud06c\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub354 \uc9c1\uad00\uc801\uc778 \uc0ac\uc6a9\uc790 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>\uacb0\ub860<\/h2>\n<p>\uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 Express\uc640 \uc6f9\uc18c\ucf13\uc744 \uc0ac\uc6a9\ud558\uc5ec \uac04\ub2e8\ud55c \ucc44\ud305 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uad6c\ud604\ud588\uc2b5\ub2c8\ub2e4. \uc6f9\uc18c\ucf13\uc744 \ud1b5\ud574 \uc2e4\uc2dc\uac04\uc73c\ub85c \ub370\uc774\ud130\ub97c \uc8fc\uace0\ubc1b\uc744 \uc218 \uc788\ub294 \uac00\ub2a5\uc131\uc744 \ud655\uc778\ud560 \uc218 \uc788\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uae30\ubc18\uc73c\ub85c \ub2e4\uc591\ud55c \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \uc218 \uc788\uc73c\ub2c8, \uc5ec\ub7ec\ubd84\ub3c4 \uc790\uc2e0\uc758 \uc544\uc774\ub514\uc5b4\ub97c \uad6c\ud604\ud574 \ubcf4\uc138\uc694!<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc6f9 \uac1c\ubc1c\uc758 \ubc1c\uc804\uc5d0 \ub530\ub77c \uc0ac\uc6a9\uc790\ub294 \uc810\uc810 \ub354 \uc2e4\uc2dc\uac04\uc73c\ub85c \uc0c1\ud638\uc791\uc6a9\ud558\ub294 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uae30\ub300\ud558\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc694\uad6c\ub97c \ucda9\uc871\uc2dc\ud0a4\uae30 \uc704\ud574 \uc6f9\uc18c\ucf13(WebSocket) \ud504\ub85c\ud1a0\ucf5c\uc740 \ud544\uc218\uc801\uc778 \uc694\uc18c\ub85c \uc790\ub9ac\uc7a1\uc558\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 Node.js\uc758 Express \ud504\ub808\uc784\uc6cc\ud06c\uc640 \uc6f9\uc18c\ucf13\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4dc\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc6f9\uc18c\ucf13\uc774\ub780? \uc6f9\uc18c\ucf13\uc740 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \uc804\uc774\uc911(Full-Duplex) \ud1b5\uc2e0\uc744 \uac00\ub2a5\ud558\uac8c \ud558\ub294 \ud504\ub85c\ud1a0\ucf5c\uc785\ub2c8\ub2e4. \uc774\ub294 HTTP \uc694\uccad\/\uc751\ub2f5 \ubaa8\ub378\uc5d0 \ube44\ud574 \ud6a8\uc728\uc801\uc774\uba70, \ud2b9\ud788 \uc2e4\uc2dc\uac04 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