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Nx で nestjs のみのプロジェクトを作成する

Last updated at Posted at 2020-08-10

Nx で nestjs のみのプロジェクトを作成する

Table of Contents
  1. Nx で nestjs のワークスペースを作成
  2. Nx で nestjs のアプリケーションを作成する
  3. nestjs のアプリケーションのサーバを起動する
  4. CLI について

1. Nx で nestjs のワークスペースを作成

$ npx create-nx-workspace
? Workspace name (e.g., org name)     nestjs
? What to create in the new workspace
❯ empty             [an empty workspace with a layout that works best for building apps]
  oss               [an empty workspace with a layout that works best for open-source projects]
  web components    [a workspace with a single app built using web components]
  angular           [a workspace with a single Angular application]
  angular-nest      [a workspace with a full stack application (Angular + Nest)]
  react             [a workspace with a single React application]
  react-express     [a workspace with a full stack application (React + Express)]
  next.js           [a workspace with a single Next.js application]
? CLI to power the Nx workspace       (Use arrow keys)
❯ Nx           [Recommended for all applications (React, Node, etc..)]
  Angular CLI  [Recommended for Angular only workspaces]
? Use the free tier of the distributed cache provided by Nx Cloud? (Use arrow keys)
  Yes [Faster command execution, faster CI. Learn more at https://nx.app]
❯ No  [Only use local computation cache]
$ tree -L 3 -I node_modules
.
├── README.md
├── apps # 作成するapplicationが入るフォルダ
├── libs # application内部で共有するlibraryフォルダ
├── nx.json
├── package.json
├── tools
│   ├── schematics
│   └── tsconfig.tools.json
├── tsconfig.base.json
├── workspace.json
└── yarn.lock

2. Nx で nestjs のアプリケーションを作成する

$ yarn add -D @nrwl/nest
$ nx g @nrwl/nest:application nestjs-sample
$ tree -L 4 -I node_modules
├── README.md
├── apps
│   └── nestjs-sample # 先ほど作成したapplicationの名前で作成されます
│       ├── jest.config.js
│       ├── src
│       │   ├── app
│       │   ├── assets
│       │   ├── environments
│       │   └── main.ts
│       ├── tsconfig.app.json
│       ├── tsconfig.json
│       └── tsconfig.spec.json
├── dist
│   └── apps
│       └── nestjs-sample
│           ├── main.js
│           └── main.js.map
├── jest.config.js
├── libs
├── nx.json
├── package.json
├── tmp
│   └── apps
│       └── nestjs-sample
│           └── tsconfig.generated.json
├── tools
│   ├── schematics
│   └── tsconfig.tools.json
├── tsconfig.base.json
├── workspace.json
└── yarn.lock

3. nestjs のアプリケーションのサーバを起動する

$ nx serve nestjs-sample

locahost:3333/apiにアクセスすると下記の画面が表示されます。

localhost-3333-api.png

4. CLI について

schematics が個人的にまだ発見できていない感じです。
普通にhelp使えば見えました。

$ nx g @nrwl/nest:module --help

nx generate @nrwl/nest:module [name] [options,...]

Options:
  --name                  The name of generated schematic
  --project               The nest project to target
  --unitTestRunner        Test runner to use for unit tests (default: jest)
  --directory             Directory where the generated files are placed
  --flat                  Flag to indicate if a directory is created.
  --dryRun                Runs through and reports activity without writing to disk.
  --help                  Show available options for project target.

Nx Docsでは lib などで生成しているのですが(多分 micro service を作成するイメージなのかな?)、個人的にはまだ one application n modules の作成をしたいため、下記のようなないようでとりあえずエスケープしています。(angular を利用すれば ng command でうまく行きそうな感じしてますが、とりあえず nest だけなら)

module の作成

$ nx g @nrwl/nest:module --name=todo --project=nestjs-sample --directory=app

service の作成

$ nx g @nrwl/nest:service --name=todo --project=nestjs-sample --directory=app/todo

controller の作成

$ nx g @nrwl/nest:controller --name=todo --project=nestjs-sample --directory=app/todo

上記で作成した場合ディレクトリは下記のような形になります。

$ tree -L 1 -I node_modules
├── README.md
├── apps
│   └── nestjs-sample
│       ├── jest.config.js
│       ├── src
│       │   ├── app
│       │   │   ├── app.controller.spec.ts
│       │   │   ├── app.controller.ts
│       │   │   ├── app.module.ts
│       │   │   ├── app.service.spec.ts
│       │   │   ├── app.service.ts
│       │   │   └── todo
│       │   ├── assets
│       │   ├── environments
│       │   │   ├── environment.prod.ts
│       │   │   └── environment.ts
│       │   └── main.ts
│       ├── tsconfig.app.json
│       ├── tsconfig.json
│       └── tsconfig.spec.json
├── jest.config.js
├── libs
├── nx.json
├── package.json
├── tmp
│   └── apps
│       └── nestjs-sample
│           └── tsconfig.generated.json
├── tools
│   ├── schematics
│   └── tsconfig.tools.json
├── tsconfig.base.json
├── workspace.json
└── yarn.lock
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