\n \ubcf8 \uac15\uc88c\uc5d0\uc11c\ub294 Node.js<\/strong>\uc640 Express.js<\/strong>\ub97c \uc124\uce58\ud558\uace0 \uc124\uc815\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc124\uba85\ud569\ub2c8\ub2e4. Node.js\ub294 \uc11c\ubc84 \uc0ac\uc774\ub4dc \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \uc2e4\ud589 \ud658\uacbd\uc73c\ub85c, Express.js\ub294 Node.js \uc704\uc5d0\uc11c \ub3d9\uc791\ud558\ub294 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ud504\ub808\uc784\uc6cc\ud06c\ub85c\uc368, \uc6f9 \uc11c\ubc84\ub97c \uc27d\uac8c \ub9cc\ub4e4 \uc218 \uc788\ub3c4\ub85d \ub3c4\uc640\uc90d\ub2c8\ub2e4.\n <\/p>\n \n Node.js\ub294 \uad6c\uae00 \ud06c\ub86c\uc758 V8 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8 \uc5d4\uc9c4\uc744 \uae30\ubc18\uc73c\ub85c \ud558\ub294 \uc11c\ubc84 \uc0ac\uc774\ub4dc \ud50c\ub7ab\ud3fc\uc785\ub2c8\ub2e4. \ube44\ub3d9\uae30 \uc774\ubca4\ud2b8 \uae30\ubc18 \uc544\ud0a4\ud14d\ucc98\ub97c \uc0ac\uc6a9\ud558\uc5ec, \ub192\uc740 \uc131\ub2a5\uc758 \ub124\ud2b8\uc6cc\ud06c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4e4 \uc218 \uc788\uac8c \ud574\uc90d\ub2c8\ub2e4. Node.js\ub294 \uc790\ubc14\uc2a4\ud06c\ub9bd\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc11c\ubc84 \uc0ac\uc774\ub4dc\uc5d0\uc11c \ucf54\ub4dc \uc791\uc131\uc774 \uac00\ub2a5\ud558\uac8c \ud558\uc5ec, \ud504\ub860\ud2b8\uc5d4\ub4dc\uc640 \ubc31\uc5d4\ub4dc\uc5d0 \ub3d9\uc77c\ud55c \uc5b8\uc5b4\ub85c \uac1c\ubc1c\ud560 \uc218 \uc788\ub294 \uc7a5\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.\n <\/p>\n \n Express.js\ub294 Node.js \uc704\uc5d0\uc11c \uad6c\ucd95\ub41c \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ud504\ub808\uc784\uc6cc\ud06c\uc785\ub2c8\ub2e4. \ub9e4\uc6b0 \uac04\uacb0\ud558\uace0 \uc720\uc5f0\ud55c \uad6c\uc870\ub97c \uac00\uc9c0\uace0 \uc788\uc5b4 RESTful API \ubc0f \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc27d\uac8c \uc81c\uc791\ud560 \uc218 \uc788\ub3c4\ub85d \ub3d5\uc2b5\ub2c8\ub2e4. Express.js\ub294 \ubbf8\ub4e4\uc6e8\uc5b4\ub97c \uc911\uc2ec\uc73c\ub85c \uc124\uacc4\ub418\uc5b4, \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ucd94\uac00\ud560 \uc218 \uc788\ub294 \ud655\uc7a5\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n Node.js\ub97c \uc124\uce58\ud558\uae30 \uc704\ud574\uc11c\ub294 \uacf5\uc2dd \ud648\ud398\uc774\uc9c0\uc5d0\uc11c \uc124\uce58 \ud30c\uc77c\uc744 \ub2e4\uc6b4\ub85c\ub4dc\ud574\uc57c \ud569\ub2c8\ub2e4. \uc544\ub798 \ub2e8\uacc4\uc5d0 \ub530\ub77c \uc124\uce58\ub97c \uc9c4\ud589\ud558\uc138\uc694.\n <\/p>\n \n 1. [Node.js \uacf5\uc2dd \uc6f9\uc0ac\uc774\ud2b8](https:\/\/nodejs.org\/)\uc5d0 \uc811\uc18d\ud569\ub2c8\ub2e4. \n 1. \ub2e4\uc6b4\ub85c\ub4dc\ud55c \uc124\uce58 \ud30c\uc77c\uc744 \uc2e4\ud589\ud569\ub2c8\ub2e4. \n \uc704 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uba74 Node.js\uc758 \ubc84\uc804\uc774 \ucd9c\ub825\ub418\uc5b4\uc57c \ud569\ub2c8\ub2e4. \ub9cc\uc57d \ubc84\uc804\uc774 \ucd9c\ub825\ub418\uba74 \uc131\uacf5\uc801\uc73c\ub85c \uc124\uce58\ub41c \uac83\uc785\ub2c8\ub2e4.\n <\/p>\n \n Node.js\ub97c \uc124\uce58\ud558\uba74 \uae30\ubcf8\uc801\uc73c\ub85c npm<\/strong>\ub3c4 \ud568\uaed8 \uc124\uce58\ub429\ub2c8\ub2e4. npm\uc740 Node.js \ud328\ud0a4\uc9c0 \uad00\ub9ac\uc790\ub85c, \ud328\ud0a4\uc9c0\ub97c \uc124\uce58\ud558\uace0 \uad00\ub9ac\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc544\ub798 \uba85\ub839\uc5b4\ub85c npm\uc774 \uc815\uc0c1\uc801\uc73c\ub85c \uc124\uce58\ub418\uc5c8\ub294\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n npm\uc758 \ubc84\uc804\uc774 \ucd9c\ub825\ub418\uba74 \uc815\uc0c1\uc801\uc73c\ub85c \uc124\uce58\ub41c \uac83\uc785\ub2c8\ub2e4. npm\uc744 \ud1b5\ud574 Express\ub97c \uc124\uce58\ud558\uae30 \uc804\uc5d0, \uba3c\uc800 \ud328\ud0a4\uc9c0\uc758 \ucd5c\uc2e0 \ubaa9\ub85d\uc744 \uc5c5\ub370\uc774\ud2b8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n \uc774\uc81c Node.js\uc640 npm\uc774 \uc124\uce58\ub418\uc5c8\uc73c\ub2c8, Express.js\ub97c \uc124\uce58\ud560 \uc900\ube44\uac00 \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc544\ub798\uc758 \ub2e8\uacc4\uc5d0 \ub530\ub77c Express.js\ub97c \uc124\uce58\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n \uc791\uc5c5\ud560 \ud3f4\ub354\ub97c \uc0dd\uc131\ud55c \ud6c4 \ud574\ub2f9 \ud3f4\ub354\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4. \uc544\ub798 \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud574 \uc0c8 \ud3f4\ub354\ub97c \uc0dd\uc131\ud558\uace0 \uadf8 \uc548\uc73c\ub85c \uc774\ub3d9\ud569\ub2c8\ub2e4.\n <\/p>\n \n \uc544\ub798\uc758 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uc5ec npm \ud504\ub85c\uc81d\ud2b8\ub97c \ucd08\uae30\ud654\ud569\ub2c8\ub2e4. \n Express\ub97c \uc124\uce58\ud558\uae30 \uc704\ud574 \uc544\ub798 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud569\ub2c8\ub2e4.\n <\/p>\n \n \uc124\uce58\uac00 \uc644\ub8cc\ub418\uba74 \n Express\ub97c \uc124\uce58\ud55c \ud6c4, \uac04\ub2e8\ud55c \uc11c\ubc84\ub97c \ub9cc\ub4e4\uc5b4 \ubcfc \ucc28\ub840\uc785\ub2c8\ub2e4. \uc544\ub798\uc758 \ucf54\ub4dc\ub97c \uc0ac\uc6a9\ud558\uc5ec \uae30\ubcf8\uc801\uc778 Express \uc11c\ubc84\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n \uc791\uc131\ud55c \ucf54\ub4dc\ub97c \n \uc774\uc81c \uc6f9 \ube0c\ub77c\uc6b0\uc800\ub97c \uc5f4\uace0 \n Express.js\ub97c \uc0ac\uc6a9\ud558\uba74 RESTful API\ub97c \uc27d\uac8c \uad6c\ucd95\ud560 \uc218 \uc788\uace0, \ub2e4\uc591\ud55c \ubbf8\ub4e4\uc6e8\uc5b4\ub97c \ud1b5\ud574 \uae30\ub2a5\uc744 \ud655\uc7a5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. JSON \ub370\uc774\ud130 \uc804\uc1a1, \uc138\uc158 \uad00\ub9ac, \uc778\uc99d \ub4f1 \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\ubbc0\ub85c, \ub2e4\uc591\ud55c \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uad6c\ucd95\uc5d0 \uc720\uc6a9\ud558\uac8c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n \n \uc774\ubc88 \uac15\uc88c\uc5d0\uc11c\ub294 Node.js\uc640 Express.js\uc758 \uc124\uce58 \ubc29\ubc95\uacfc \uae30\ubcf8\uc801\uc778 \uc11c\ubc84 \uc124\uc815\uc744 \ubc30\uc6e0\uc2b5\ub2c8\ub2e4. \uc774 \uacfc\uc815\uc744 \ud1b5\ud574 \ub354 \ub2e4\uc591\ud55c \uae30\ub2a5\uc744 \ud0d0\uad6c\ud558\uace0, \uc2e4\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \ub354 \uae4a\uc774 \uc788\uac8c \ub4e4\uc5b4\uac08 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \uac15\uc88c\uc5d0\uc11c\ub294 CRUD(\uc0dd\uc131, \uc77d\uae30, \uc5c5\ub370\uc774\ud2b8, \uc0ad\uc81c) \uae30\ub2a5\uc744 \uac00\uc9c4 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \ub9cc\ub4e4\uc5b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n <\/p>\n1. Node.js\ub780?<\/h2>\n
Node.js\uc758 \uc8fc\uc694 \ud2b9\uc9d5<\/h3>\n
\n
2. Express.js\ub780?<\/h2>\n
Express.js\uc758 \uc8fc\uc694 \ud2b9\uc9d5<\/h3>\n
\n
3. Node.js \uc124\uce58 \ubc29\ubc95<\/h2>\n
3.1. Node.js \ub2e4\uc6b4\ub85c\ub4dc<\/h3>\n
\n 2. LTS(Long Term Support) \ubc84\uc804\uacfc Current \ubc84\uc804\uc774 \uc81c\uacf5\ub429\ub2c8\ub2e4. \uc548\uc815\uc131\uc744 \uc6b0\uc120\uc2dc\ud55c\ub2e4\uba74 LTS \ubc84\uc804\uc744 \uc120\ud0dd\ud569\ub2c8\ub2e4.
\n 3. \uc6b4\uc601\uccb4\uc81c\uc5d0 \ub9de\ub294 \uc124\uce58 \ud30c\uc77c\uc744 \ub2e4\uc6b4\ub85c\ub4dc\ud569\ub2c8\ub2e4.\n <\/p>\n3.2. \uc124\uce58\ud558\uae30<\/h3>\n
\n 2. \uc124\uce58 \ub9c8\ubc95\uc0ac\uc758 \uc548\ub0b4\uc5d0 \ub530\ub77c \uc9c4\ud589\ud569\ub2c8\ub2e4.
\n 3. \uc124\uce58\uac00 \uc644\ub8cc\ub418\uba74 \uba85\ub839 \ud504\ub86c\ud504\ud2b8 \ub610\ub294 \ud130\ubbf8\ub110\uc744 \uc5f4\uc5b4 \uc544\ub798 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uc5ec \uc124\uce58\uac00 \uc131\uacf5\uc801\uc73c\ub85c \uc774\ub8e8\uc5b4\uc84c\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.\n <\/p>\nnode -v<\/code><\/pre>\n4. npm(Node Package Manager) \uc124\uce58\ud558\uae30<\/h2>\n
npm -v<\/code><\/pre>\n5. Express.js \uc124\uce58 \ubc29\ubc95<\/h2>\n
5.1. \uc0c8\ub85c\uc6b4 \ud504\ub85c\uc81d\ud2b8 \ud3f4\ub354 \uc0dd\uc131<\/h3>\n
mkdir my-express-app && cd my-express-app<\/code><\/pre>\n5.2. npm \ucd08\uae30\ud654<\/h3>\n
\n \uc774 \uacfc\uc815\uc5d0\uc11c \uc77c\ubd80 \uc815\ubcf4\ub97c \uc785\ub825 \ubc1b\uac8c \ub418\ub294\ub370, \uae30\ubcf8\uac12\uc73c\ub85c \uc9c4\ud589\ud558\uace0 \uc2f6\ub2e4\uba74 \uc5d4\ud130 \ud0a4\ub97c \ub204\ub974\uba74 \ub429\ub2c8\ub2e4.\n <\/p>\nnpm init -y<\/code><\/pre>\n5.3. Express.js \uc124\uce58<\/h3>\n
npm install express<\/code><\/pre>\nnode_modules<\/code> \ud3f4\ub354\uc640 package.json<\/code> \ud30c\uc77c\uc774 \uc0dd\uc131\ub429\ub2c8\ub2e4. package.json<\/code> \ud30c\uc77c\uc740 \ud504\ub85c\uc81d\ud2b8\uc5d0 \ud544\uc694\ud55c \ud328\ud0a4\uc9c0\uc640 \ubc84\uc804 \uc815\ubcf4\ub97c \ub2f4\uace0 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n6. \uae30\ubcf8 Express \uc11c\ubc84 \uc0dd\uc131\ud558\uae30<\/h2>\n
const express = require('express');\nconst app = express();\nconst PORT = process.env.PORT || 3000;\n\napp.get('\/', (req, res) => {\n res.send('Hello, Express!');\n});\n\napp.listen(PORT, () => {\n console.log(`\uc11c\ubc84\uac00 http:\/\/localhost:${PORT}\uc5d0\uc11c \uc791\ub3d9\uc911\uc785\ub2c8\ub2e4.`);\n});<\/code><\/pre>\n\ucf54\ub4dc \uc124\uba85<\/h3>\n
\n
const express = require('express');<\/code>: Express \ubaa8\ub4c8\uc744 \ubd88\ub7ec\uc635\ub2c8\ub2e4.<\/li>\nconst app = express();<\/code>: Express \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1d\uccb4\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/li>\napp.get('\/', ...)<\/code>: \ub8e8\ud2b8 \uacbd\ub85c(‘\/’)\ub85c \ub4e4\uc5b4\uc624\ub294 GET \uc694\uccad\uc5d0 \ub300\ud574 \uc751\ub2f5\uc744 \uc9c0\uc815\ud569\ub2c8\ub2e4.<\/li>\napp.listen(PORT, ...)<\/code>: \uc9c0\uc815\ud55c \ud3ec\ud2b8\uc5d0\uc11c \uc11c\ubc84\ub97c \uc2e4\ud589\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n7. \uc11c\ubc84 \uc2e4\ud589\ud558\uae30<\/h2>\n
server.js<\/code>\uc640 \uac19\uc740 \ud30c\uc77c\ub85c \uc800\uc7a5\ud55c \ud6c4, \ud130\ubbf8\ub110\uc5d0\uc11c \uc544\ub798 \uba85\ub839\uc5b4\ub85c \uc11c\ubc84\ub97c \uc2e4\ud589\ud569\ub2c8\ub2e4.\n <\/p>\nnode server.js<\/code><\/pre>\nhttp:\/\/localhost:3000<\/code>\uc5d0 \uc811\uc18d\ud558\uba74 “Hello, Express!”\ub77c\ub294 \uba54\uc2dc\uc9c0\ub97c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n <\/p>\n8. \ucd94\uac00\uc801\uc73c\ub85c \uc54c\uc544\ub450\uba74 \uc88b\uc740 \uc810<\/h2>\n
9. \ub9c8\ubb34\ub9ac<\/h2>\n