\n Nest.js\ub294 \ud604\ub300\uc801\uc778 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\uc744 \uc704\ud55c \uac15\ub825\ud55c \ud504\ub808\uc784\uc6cc\ud06c\ub85c, TypeScript\ub85c \uc791\uc131\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4. Nest.js\ub294 \ub2e4\uc591\ud55c \uc544\ud0a4\ud14d\ucc98\uc640 \ub514\uc790\uc778 \ud328\ud134\uc744 \uc9c0\uc6d0\ud558\uba70, \ud2b9\ud788 RESTful API \uad6c\ucd95\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 Nest.js\ub97c \uc0ac\uc6a9\ud558\uc5ec \ube14\ub85c\uadf8 API\uc758 \uae30\ubcf8 \uc5d4\ub4dc\ud3ec\uc778\ud2b8\ub97c \uc124\uc815\ud558\uace0, CRUD(Create, Read, Update, Delete) \uc791\uc5c5\uc744 \uad6c\ud604\ud558\ub294 \uacfc\uc815\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.\n<\/p>\n
\n Nest.js\ub294 Angular\uc5d0\uc11c \uc601\uac10\uc744 \ubc1b\uc544 \ub9cc\ub4e4\uc5b4\uc9c4 Node.js\uc758 \ud504\ub808\uc784\uc6cc\ud06c\ub85c, \ubaa8\ub4c8\ud654, \uc758\uc874\uc131 \uc8fc\uc785(DI), \uadf8\ub9ac\uace0 \uc720\uc5f0\ud55c \uad6c\uc870\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. Nest.js\ub294 Express.js\ub97c \uae30\ubc18\uc73c\ub85c \ud558\uba70, \ub2e4\uc591\ud55c \ub77c\uc774\ube0c\ub7ec\ub9ac\uc640 \ubbf8\ub4e4\uc6e8\uc5b4\ub97c \ud65c\uc6a9\ud558\uc5ec \uac15\ub825\ud55c API \uc11c\ubc84\ub97c \uad6c\ucd95\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n<\/p>\n
\n Nest.js\ub97c \uc0ac\uc6a9\ud558\uae30 \uc704\ud574 \uba3c\uc800 Nest CLI\ub97c \uc124\uce58\ud558\uace0, \uc0c8\ub85c\uc6b4 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud574\uc57c \ud569\ub2c8\ub2e4. Nest CLI\ub294 Nest.js \ud504\ub85c\uc81d\ud2b8\ub97c \ube60\ub974\uac8c \uc0dd\uc131\ud558\uace0 \uad00\ub9ac\ud560 \uc218 \uc788\ub294 \ub3c4\uad6c\uc785\ub2c8\ub2e4.\n<\/p>\n
npm install -g @nestjs\/cli\nnest new blog-api\n<\/code><\/pre>\n\n \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uba74, \uc0c8\ub85c\uc6b4 \ub514\ub809\ud130\ub9ac\uac00 \uc0dd\uc131\ub418\uace0 \uad00\ub828 \ud30c\uc77c\uacfc \uc885\uc18d\uc131\uc774 \uc124\uce58\ub429\ub2c8\ub2e4. \ud504\ub85c\uc81d\ud2b8 \ub514\ub809\ud130\ub9ac\ub85c \uc774\ub3d9\ud558\uc5ec \uc11c\ubc84\ub97c \uc2e4\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\n<\/p>\n
cd blog-api\nnpm run start\n<\/code><\/pre>\n3. \ube14\ub85c\uadf8 API \uae30\ubcf8 \uc5d4\ub4dc\ud3ec\uc778\ud2b8 \uc124\uacc4<\/h2>\n
\n \ube14\ub85c\uadf8 API\ub294 \uc5ec\ub7ec \uac1c\uc758 \uc5d4\ub4dc\ud3ec\uc778\ud2b8\ub97c \ud1b5\ud574 \ube14\ub85c\uadf8 \uac8c\uc2dc\ubb3c\uc744 \uad00\ub9ac\ud569\ub2c8\ub2e4. \uae30\ubcf8\uc801\uc778 CRUD \uc791\uc5c5\uc744 \uc704\ud55c \uc5d4\ub4dc\ud3ec\uc778\ud2b8\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.\n<\/p>\n
\n- GET \/posts: \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \uc870\ud68c<\/li>\n
- GET \/posts\/:id: \ud2b9\uc815 \uac8c\uc2dc\ubb3c \uc870\ud68c<\/li>\n
- POST \/posts: \uc0c8\ub85c\uc6b4 \uac8c\uc2dc\ubb3c \uc0dd\uc131<\/li>\n
- PUT \/posts\/:id: \uac8c\uc2dc\ubb3c \uc218\uc815<\/li>\n
- DELETE \/posts\/:id: \uac8c\uc2dc\ubb3c \uc0ad\uc81c<\/li>\n<\/ul>\n
4. \uac8c\uc2dc\ubb3c \ubaa8\ub4c8 \uc0dd\uc131<\/h2>\n
\n Nest.js\uc758 \ubaa8\ub4c8 \uc2dc\uc2a4\ud15c\uc744 \uc774\uc6a9\ud558\uc5ec \uac8c\uc2dc\ubb3c \ubaa8\ub4c8\uc744 \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798 \uba85\ub839\uc5b4\ub97c \uc785\ub825\ud558\uc5ec \uac8c\uc2dc\ubb3c \ubaa8\ub4c8\uc744 \uc0dd\uc131\ud569\ub2c8\ub2e4.\n<\/p>\n
nest generate module posts\nnest generate controller posts\nnest generate service posts\n<\/code><\/pre>\n\n \uc704 \uba85\ub839\uc5b4\ub97c \ud1b5\ud574 posts\ub77c\ub294 \uc774\ub984\uc758 \ubaa8\ub4c8, \ucee8\ud2b8\ub864\ub7ec, \uc11c\ube44\uc2a4\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. \uc0dd\uc131\ub41c \ud30c\uc77c\ub4e4\uc740 src\/posts<\/code> \ub514\ub809\ud130\ub9ac \uc548\uc5d0 \uc704\uce58\ud558\uac8c \ub429\ub2c8\ub2e4.\n<\/p>\n5. \uac8c\uc2dc\ubb3c DTO(Data Transfer Object) \uc815\uc758<\/h2>\n
\n \uac8c\uc2dc\ubb3c \ub370\uc774\ud130\uc758 \ud615\uc2dd\uc744 \uc815\uc758\ud558\uae30 \uc704\ud574 DTO\ub97c \uc124\uc815\ud569\ub2c8\ub2e4. DTO\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640\uc758 \ub370\uc774\ud130 \uad50\ud658\uc744 \uc704\ud55c \uac1d\uccb4\ub85c, \ub370\uc774\ud130\uc758 \uc720\ud6a8\uc131\uc744 \uac80\uc0ac\ud558\ub294 \ub370\ub3c4 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub2e4\uc74c\uacfc \uac19\uc740 \uac8c\uc2dc\ubb3c DTO\ub97c \uc815\uc758\ud558\uaca0\uc2b5\ub2c8\ub2e4.\n<\/p>\n
import { IsNotEmpty, IsString } from 'class-validator';\n\nexport class CreatePostDto {\n @IsNotEmpty()\n @IsString()\n readonly title: string;\n\n @IsNotEmpty()\n @IsString()\n readonly content: string;\n}\n<\/code><\/pre>\n6. \uac8c\uc2dc\ubb3c \uc11c\ube44\uc2a4 \uad6c\ud604<\/h2>\n
\n \uac8c\uc2dc\ubb3c \uc11c\ube44\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\uc758 \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uc744 \uad00\ub9ac\ud569\ub2c8\ub2e4. \uc11c\ube44\uc2a4\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640\uc758 \uc0c1\ud638\uc791\uc6a9, \ub370\uc774\ud130 \ucc98\ub9ac \ub4f1\uc744 \ub2f4\ub2f9\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \uac04\ub2e8\ud55c \uac8c\uc2dc\ubb3c \uc11c\ube44\uc2a4 \ucf54\ub4dc\uc785\ub2c8\ub2e4.\n<\/p>\n
import { Injectable, NotFoundException } from '@nestjs\/common';\nimport { CreatePostDto } from '.\/dto\/create-post.dto';\n\n@Injectable()\nexport class PostsService {\n private posts = [];\n\n create(createPostDto: CreatePostDto) {\n const newPost = {\n id: this.posts.length + 1,\n ...createPostDto,\n };\n this.posts.push(newPost);\n return newPost;\n }\n\n findAll() {\n return this.posts;\n }\n\n findOne(id: number) {\n const post = this.posts.find(p => p.id === id);\n if (!post) {\n throw new NotFoundException(`Post with ID ${id} not found`);\n }\n return post;\n }\n\n update(id: number, updatePostDto: CreatePostDto) {\n const postIndex = this.posts.findIndex(p => p.id === id);\n if (postIndex === -1) {\n throw new NotFoundException(`Post with ID ${id} not found`);\n }\n this.posts[postIndex] = { id, ...updatePostDto };\n return this.posts[postIndex];\n }\n\n delete(id: number) {\n const postIndex = this.posts.findIndex(p => p.id === id);\n if (postIndex === -1) {\n throw new NotFoundException(`Post with ID ${id} not found`);\n }\n this.posts.splice(postIndex, 1);\n return { message: 'Post deleted successfully' };\n }\n}\n<\/code><\/pre>\n7. \uac8c\uc2dc\ubb3c \ucee8\ud2b8\ub864\ub7ec \uad6c\ud604<\/h2>\n
\n \ub9c8\uc9c0\ub9c9\uc73c\ub85c, HTTP \uc694\uccad\uc744 \ucc98\ub9ac\ud558\ub294 \uac8c\uc2dc\ubb3c \ucee8\ud2b8\ub864\ub7ec\ub97c \uad6c\ud604\ud569\ub2c8\ub2e4. \uac01 \uc5d4\ub4dc\ud3ec\uc778\ud2b8\uc5d0 \ud574\ub2f9\ud558\ub294 \uba54\uc18c\ub4dc\ub97c \uc815\uc758\ud558\uc5ec \uc694\uccad\uc744 \ucc98\ub9ac\ud569\ub2c8\ub2e4.\n<\/p>\n
import { Controller, Get, Post, Body, Param, Put, Delete } from '@nestjs\/common';\nimport { PostsService } from '.\/posts.service';\nimport { CreatePostDto } from '.\/dto\/create-post.dto';\n\n@Controller('posts')\nexport class PostsController {\n constructor(private readonly postsService: PostsService) {}\n\n @Post()\n create(@Body() createPostDto: CreatePostDto) {\n return this.postsService.create(createPostDto);\n }\n\n @Get()\n findAll() {\n return this.postsService.findAll();\n }\n\n @Get(':id')\n findOne(@Param('id') id: string) {\n return this.postsService.findOne(+id);\n }\n\n @Put(':id')\n update(@Param('id') id: string, @Body() updatePostDto: CreatePostDto) {\n return this.postsService.update(+id, updatePostDto);\n }\n\n @Delete(':id')\n delete(@Param('id') id: string) {\n return this.postsService.delete(+id);\n }\n}\n<\/code><\/pre>\n8. API \ud14c\uc2a4\ud2b8<\/h2>\n
\n API\ub97c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud574 Postman \ub610\ub294 Insomnia\uc640 \uac19\uc740 API \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc544\ub798\ub294 \uac01 \uc5d4\ub4dc\ud3ec\uc778\ud2b8\ub97c \ud14c\uc2a4\ud2b8\ud558\uae30 \uc704\ud55c \ubc29\ubc95\uc785\ub2c8\ub2e4.\n<\/p>\n
\n- POST \/posts<\/strong>: \uc0c8 \uac8c\uc2dc\ubb3c \uc0dd\uc131<\/li>\n
- GET \/posts<\/strong>: \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \uc870\ud68c<\/li>\n
- GET \/posts\/:id<\/strong>: \ud2b9\uc815 \uac8c\uc2dc\ubb3c \uc870\ud68c<\/li>\n
- PUT \/posts\/:id<\/strong>: \uac8c\uc2dc\ubb3c \uc5c5\ub370\uc774\ud2b8<\/li>\n
- DELETE \/posts\/:id<\/strong>: \uac8c\uc2dc\ubb3c \uc0ad\uc81c<\/li>\n<\/ul>\n
8.1 \uc0c8 \uac8c\uc2dc\ubb3c \uc0dd\uc131 \uc608\uc81c<\/h3>\nPOST \/posts\nContent-Type: application\/json\n\n{\n \"title\": \"\uccab \ubc88\uc9f8 \uac8c\uc2dc\ubb3c\",\n \"content\": \"\uc774\uac83\uc740 \uccab \ubc88\uc9f8 \uac8c\uc2dc\ubb3c\uc758 \ub0b4\uc6a9\uc785\ub2c8\ub2e4.\"\n}\n<\/code><\/pre>\n8.2 \ubaa8\ub4e0 \uac8c\uc2dc\ubb3c \uc870\ud68c \uc608\uc81c<\/h3>\nGET \/posts\n<\/code><\/pre>\n8.3 \ud2b9\uc815 \uac8c\uc2dc\ubb3c \uc870\ud68c \uc608\uc81c<\/h3>\nGET \/posts\/1\n<\/code><\/pre>\n8.4 \uac8c\uc2dc\ubb3c \uc218\uc815 \uc608\uc81c<\/h3>\nPUT \/posts\/1\nContent-Type: application\/json\n\n{\n \"title\": \"\uc218\uc815\ub41c \uac8c\uc2dc\ubb3c \uc81c\ubaa9\",\n \"content\": \"\uc218\uc815\ub41c \ub0b4\uc6a9\uc785\ub2c8\ub2e4.\"\n}\n<\/code><\/pre>\n8.5 \uac8c\uc2dc\ubb3c \uc0ad\uc81c \uc608\uc81c<\/h3>\nDELETE \/posts\/1\n<\/code><\/pre>\n9. \uacb0\ub860<\/h2>\n
\n \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 Nest.js\ub97c \uc0ac\uc6a9\ud558\uc5ec \ube14\ub85c\uadf8 API\uc758 \uae30\ubcf8 CRUD \uc5d4\ub4dc\ud3ec\uc778\ud2b8\ub97c \uc0dd\uc131\ud558\ub294 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. Nest.js\ub294 \uc9c1\uad00\uc801\uc774\uace0 \uc720\uc5f0\ud55c API \uac1c\ubc1c\uc744 \uac00\ub2a5\ud558\uac8c \ud558\uba70, \uac04\uacb0\ud558\uace0 \uc720\uc9c0\ubcf4\uc218\ud558\uae30 \uc26c\uc6b4 \ucf54\ub4dc\ub97c \uc791\uc131\ud560 \uc218 \uc788\uac8c \ub3c4\uc640\uc90d\ub2c8\ub2e4. \uc774\uc81c \uc5ec\ub7ec\ubd84\uc740 Nest.js\ub97c \ud65c\uc6a9\ud558\uc5ec \uc790\uc2e0\uc758 \uc694\uad6c\uc5d0 \ub9de\ub294 API\ub97c \uc644\uc131\ud574\ubcf4\uc2dc\uae30 \ubc14\ub78d\ub2c8\ub2e4.\n<\/p>\n
10. \ub2e4\uc74c \ub2e8\uacc4<\/h2>\n
\n \uc774 \ud29c\ud1a0\ub9ac\uc5bc\uc744 \ub9c8\uce5c \ud6c4, \ub2e4\uc74c \ub2e8\uacc4\ub85c\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640\uc758 \uc5f0\ub3d9\uc744 \ucd94\uac00\ud558\uc5ec \uc601\uc18d\uc131\uc744 \uc81c\uacf5\ud558\ub294 \ubc29\ubc95\uc744 \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. TypeORM \ub610\ub294 Sequelize\uc640 \uac19\uc740 ORM \ub77c\uc774\ube0c\ub7ec\ub9ac\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \uc800\uc7a5\ud558\uace0 \uad00\ub9ac\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \ubc30\uc6b0\ub294 \uac83\ub3c4 \ucd94\ucc9c\ud569\ub2c8\ub2e4.\n<\/p>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"