yarn workspaces typescript

Let’s assume these Also, within package.json, a types property needs to be included, defining the location of the package’s definitions file that the Typescript compiler refers to when our package is imported into another project. Now, within tsconfig.json, we need to ensure that a definition file is generated at compile time, and ensure that a build directory is present: The declaration property declares that we wish to generate a .d.ts file when the project is compiled. The workspaces property itself takes an array of directories, and supports the wildcard. What is going on with this article? monorepo環境で、yarn workspace を使って、create-react-app --typescript した client ワークスペースと、prisma2 で作成した server ワークスペースを共存させる手順のメモです。Lint, Prettier, Huskyの設定も行います。, 手元で同様の手順を踏んだリポジトリを、GitHub上に公開していますので、併せてご参照ください。, https://github.com/suzukalight/monorepo-react-prisma2, https://yarnpkg.com/lang/ja/docs/workspaces/, デフォルトで利用できるパッケージのアーキテクチャを設定する新しい方法です。ワークスペースにより複数のパッケージを設定する際に、 yarn install を一度実行するだけで、それらの全てが単一のパスにインストールされるようになります。, 1つのプロジェクトを立ち上げるとき、クライアント・サーバ・共通ロジック・Lambda・デザインシステム・LPなどの様々なサブプロジェクトが必要になることは多いと思います。これらを1つのリポジトリで扱えるようにする考え方が monorepo であり、それを実現する手段がワークスペースとなります。, monorepo環境の管理には、現在においては Lerna などが方法として存在しますが、ワークスペースはより低レベルでプリミティブな、内部依存関係の解決に特化した仕組みを提供してくれるものです。, yarn workspace で monorepo環境を構築する場合は、package.jsonに private: true と workspaces: {...} の2つを記述することになっています。, create-react-app で TypeScript の環境を作成します。（ejectは使用しません）；, 個別のワークスペースでのみ使用するnpmモジュールをインストールする場合は、yarn workspace [ws-name] add コマンドを使用します。, ここでは、client側でしか使わないようなパッケージのインストールを行うために、yarn workspace client add コマンドを使用してみます；, 個別のワークスペースに記述したnpmスクリプトは、yarn workspace [ws-name] [script-name] コマンドで起動することができます。, この仕組みを利用して、ルートのpackage.jsonに、clientのdev-server起動コマンドを追加します；, 今回は手軽にGraphQLサーバを立てられる Prisma2 と graphql-yoga を利用して、簡単な手順でサーバを構築しています。, Prisma2 の CLI が未インストールの場合は、それもインストールしてください；, prisma2 は、2019年末のリリースに向けて、絶賛開発中です。そのため Breaking Changes が常に発生しており、執筆時点の preview-9.1 では PhotonJS のサンプルが正常に起動しませんでした。このため、バージョンを固定してインストールしています。, PhotonJS のサンプル から、5つのファイルをコピーし、初期環境としました；, package.json に dependencies などを追加していきます。このように yarn workspace [ws-name] add を通さず、直接package.jsonを書き換えてもOKです。, 変更したpackaje.jsonに基づいて、ワークスペースのnpmパッケージをインストールします；, コードの健全性を高めるために、すべてのワークスペースで、LintやPrettierを実行します。すべてのワークスペースで行うため、これらを共用モジュールとしてインストールします。, コーディングルールについては、各ワークスペースごとに個別の設定を行いたい場合は、各々のワークスペースに配置します。そうでないものについては、ルートディレクトリに配置します。, Lint+Prettier を行うスクリプトを、ルートのpackage.jsonに記述しておきます；, .prettierrc, .eslintrc.json, tsconfig.json を追加していきます。, tsconfig.json は client と server で異なります。いずれもすでに作成済みのものをそのまま利用します。, ルートディレクトリの tsconfig.json には、共通設定を置くのですが、ここは無指定とします（配置しないと lint 時にエラーが出たため、ダミーとして配置しています）；, client 側は、create-react-app が提供しているファイルをそのまま利用します。React を意識した設定です；, server 側は、Prisma2 が提供しているファイルをそのまま利用します。ts-node を意識した設定です；, これとは別に、client側のlint設定に、React関係のプラグイン設定を追加し、配置しました；, これでクライアント・サーバ両方のLint+Prettierが実行できるようになりました。早速実行してみます；, もし「pluginが読み取れない」系のエラーが発生した場合は、@typescript-eslint/eslint-plugin @typescript-eslint/parser のバージョンを 1.3 にダウングレードしてみると良いかもしれません。, エラーが出ている部分を修正します。create-react-appの自動生成部分なので、それを信じて握りつぶします…。, ステージされたファイルの diff を見てみると、Prettier によっていくつかのファイルが自動整形されているのがわかります。これで Lint+Prettier が成功していることが確認できたと思います。, クライアント・サーバどちらのファイルがコミットされても、huskyによって自動的に Lint+Prettier が行われ、不健全なファイルがコミットされないように設定します；, package.json に husky と lint-staged の設定を追加します；, lintの通らないファイルがコミットに失敗するかをテストします。App.tsxの7行目に <> だけを追加してみます；, Prettier によって自動整形される例もテストします。さきほどのApp.tsxの <> を空行に置き換えます；, コミットしてみると、空行が取り除かれた状態でファイルが保存され、コミットされていることが確認できたと思います。これで成功です！, フロントエンドエンジニア （RELATIONS株式会社） / 一口馬主（キャロット） / Paths are very useful for resolving modules at a single project level, but when those modules could be re-used in other projects, a better solution would be to create a package to be hosted on a private npm registry. There are a number of opportunities where packages can be utilised to tidy up your project, and limit code-repetition in other projects as a result, including: Let’s next explore how we can package up a Typescript module and deploy it to an NPM registry. How to build TypeScript mono-repo project Tools yarn: NPM client. Path aliases on the other hand could work very well with smaller projects, and also utilise in-house packages for re-usable components. yarn workspace packageB remove packageA yarn workspaces remove lodash yarn remove -W -D typescript 3.1.4 项目构建 普通项目：建立一个build的npm script，使用yarn build即可完成项目构建 Just register service worker, "./src/{client,server}/src/**/*. Let's check if a service worker still exists or not. The aim of this section is to cover the basics of this setup, and point the reader in the right directions to expand on this initial setup. . Lerna: Multiple packages management tool. Nevertheless, you may wish to upgrade to CRA3.0 if you have not done so already, and prepare your projects for the upcoming support of paths. Note: Paths can lead to anywhere under the baseUrl; you are not limited to a packages/ directory, although a packages/ directory is a common convention, especially if projects are (or plan) to move to a multi-package setup. This article has explored various ways to improve your Typescript project management, through modularising and refactoring your codebase to be more efficient and re-usable. Check out all breaking changes here before upgrading. Your dependencies can be linked together, which means that your workspaces can depend on one another while always using the most up-to-date code available. TypeScript Project References は、tsconfig.json同士の依存関係を定義することで、効率的なビルドが可能になる仕組みです。. With this in mind, our project structure may resemble the following: The baseUrl within tsconfig.json is pointing to the src/ folder, which houses a packages/ directory with our util scripts therein. Depending on which framework you are using, Typescript path aliases may not be supported, leading to problems with either the development build or the Javascript production build. I radically tried to merge the Nest monorepo into the Lerna-Yarn-Workspaces one. They are configured in tsconfig.json. Support is being worked on, the progress of which is still an open issue. With yarn workspaces, all package dependencies are installed in one command — yarn install — from the root package. First, we tell Lerna that we want to use yarn as our npm client, next, we want to use workspaces and then we set the version to be independent. Leaving --registry blank will result in your package being uploaded to the public npm registry. Yarn 2 is officially supported by Heroku. Yarn workspaces was not designed to be an all-in-one solution for multi-package management. yarn workspacesは複数パッケージを同一リポジトリで管理するツールです. Just like the scripts above, adding dependency to a workspace is: $ yarn workspace shared add -D typescript $ yarn workspace backend add -D typescript Run yarn install again in root project, yarn will hoist the same dependencies among sub projects to the top level node_modules. Now run npm publish to publish the package. Why not register and get more from Qiita? Yarn (1.x) provide the workspace feature to help you organize monorepo project. Now we have the shared module, let’s enable yarn workspaces. Note: Deep diving into Lerna is out the scope of this article, but I will plug future articles here to expand on what we have introduced in this talk. This makes more sense for larger projects, or where compartmentalising your components and sections of your apps can streamline maintenance of the app. Instead of importing a module from somewhere like a top-level utils folder, we can instead define a path, called @utils, and use it in my import statements: Import statements now become a lot easier to read and manage. If you use ts(<= 2.9), see ts-2.x branch. To enable yarn workspaces, add a workspaces configuration in the root folder’s package.json, and ensure your package is set to private: As a security precaution, workspaces must be private. However, paths are still not supported at the time of writing, and are removed from tsconfig.json at runtime if any are defined. If you are running a previous version of the package, firstly upgrade the global command-line utility, then update your projects react-scripts package and its dependencies: Note: CRA version 3 does have breaking changes from the previous version. 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Register service worker still exists or not Typescript mono-repo project tools yarn: within package.json, we have tools... Components and sections of your apps can streamline maintenance of the app, or where compartmentalising components... Set this up, simply install the package ’ s Github merge the Nest monorepo the! Vanilla Javascript within a package.json interface create-react-app utility and to build Typescript mono-repo project tools yarn: within package.json we...