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設定された値はJSONファイルに格納されます。Ionic CLIは、通常~/.ionic/config.jsonにグローバル設定ファイルを設定します。通常はプロジェクトのルートディレクトリに ionic.config.json という名前で保存されます。

CLIには、プロジェクト設定ファイルおよびグローバルCLI設定ファイルから設定値を設定およびprintfするためのコマンドが用意されています。ionic config getionic config set の使い方については、ionic config--helpを参照してください。


各Ionicプロジェクトには、通常はプロジェクトのルートディレクトリに、プロジェクト設定ファイルがあります。以下は注釈付きの ionic.config.json です。

  // The human-readable name of the app.
  "name": "My App",

  // The project type of the app. The CLI uses this value to determine which
  // commands and command options are available, what to output for help
  // documentation, and what to use for web asset builds and the dev server.
  "type": "angular",

  // The App ID for Ionic Appflow.
  "id": "abc123",

  // Configuration object for integrations such as Cordova and Capacitor.
  "integrations": {
    "cordova": {

  // Hook configuration--see the Hooks section below for details.
  "hooks": {



  • IONIC_CONFIG_DIRECTORY: The directory of the global CLI config. Defaults to ~/.ionic.
  • IONIC_HTTP_PROXY: Set a URL for proxying all CLI requests through. See Using a Proxy.
  • IONIC_TOKEN: Automatically authenticates with Ionic Appflow.


CLI flagsは、CLIコマンドの動作を変更するグローバルオプションです。

  • --help: Instead of running the command, view its help page.
  • --verbose: Show all log messages for debugging purposes.
  • --quiet: Only show WARN and ERROR log messages.
  • --no-interactive: Turn off interactive prompts and fancy outputs. If CI or a non-TTY terminal is detected, the CLI is automatically non-interactive.
  • --confirm: Turn on auto-confirmation of confirmation prompts. Careful: the CLI prompts before doing something potentially harmful. Auto-confirming may have unintended results.


CLIは、ビルドの前後など、特定のイベント中にスクリプトを実行できます。CLIにフックするために、以下の npm scriptspackage.json: ファイルで使用できます。:

  • ionic:serve:before: dev server が start される前に実行されます
  • ionic:serve:after: dev server が終了される前に実行されます
  • ionic:build:before: web assetの構築がはじまる前に実行されます
  • ionic:build:after: web assetの構築が終了して実行されます。
  • ionic:capacitor:run:before : executed on capacitor run before capacitor open is executed
  • ionic:capacitor:build:before : executed on capacitor build before capacitor open is executed
  • ionic:capacitor:sync:after: executed during ionic capacitor sync after a sync

When using a shell script for any of the hooks, hook context is defined in environment variables prefixed with IONIC_CLI_HOOK_CTX_.

The following example shows the environment variables that are set for the ionic:capacitor:build hook.


Hooksは ionic.config.json で定義することもできます。プロジェクト内でHooksオブジェクトを定義します。各キーはフックの名前(先頭にionic:を付けない)で、値はJavaScriptファイルへのパスまたはパスの配列です。

次の例では、ファイルは ionic:build:before フックでインポートされ、実行されます。

"hooks": {
  "build:before": "./scripts/build-before.js"

JavaScript Hook ファイルは、フックが実行されるたびに単一の引数(ctx)が渡される単一の関数をエクスポートする必要があります。

引数は、Hook ファイルに指定されたコンテキストであり、Hook ごと、および呼び出しごとに異なります。


module.exports = function(ctx) {

Multi-app Projects

Available in CLI 6.2.0+

Ionic CLIは multi-app 構成セットアップをサポートしており、複数のIonicアプリケーションと共有コードが単一のリポジトリ monorepo 内に存在することができます。


  1. Create a directory and initialize a monorepo (see Project Structure for full details).

  2. Initialize the monorepo as an Ionic multi-app project. This will create a multi-app ionic.config.json file. See Config File for full details.

    $ ionic init --multi-app
  3. Use ionic start to create Ionic apps or ionic init to initialize existing apps (see Adding an App for full details).


In a multi-app project, project structure is flexible. The only requirement is a multi-app ionic.config.json file at the root of the repository.

Below is an example setup, where apps in the apps/ directory are separated from the shared code in the lib/ directory. Notice the root ionic.config.json file and the monorepo's package.json file.



In a multi-app project, apps share a single ionic.config.json file at the root of the repository instead of each app having their own. The multi-app config file contains the configuration for each app by nesting configuration objects in a projects object. A default app can be specified using defaultProject.

Below is an example file, which corresponds to the file structure above.

  "defaultProject": "myApp",
  "projects": {
    "myApp": {
      "name": "My App",
      "integrations": {},
      "type": "angular",
      "root": "apps/myApp"
    "myOtherApp": {
      "name": "My Other App",
      "integrations": {},
      "type": "angular",
      "root": "apps/myOtherApp"

When a multi-app project is detected, the Ionic CLI will operate under the context of an app configured in the root ionic.config.json. Project selection criteria is as follows:

  1. If the global CLI option --project is specified, the project is looked up by key in the projects object. For example, --project=myApp will select the myApp project.
  2. If the CLI detects it is being run within a project path, configured with the root key, it will select the matched project. For example, using the CLI within the apps/myOtherApp/src directory will select the myOtherApp project.
  3. If a defaultProject is specified in ionic.config.json, it will select the specified project when the above criteria is not met.


Apps can be registered in a multi-app project either by using ionic start to create new apps or ionic init to initialize existing apps.

Using ionic start

If a multi-app project is detected during ionic start, the CLI will add the app configuration to the root ionic.config.json file instead of creating a project-specific one.

Dependency installation can be skipped using --no-deps if dependencies are hoisted to the root of the monorepo.

$ cd apps/
$ ionic start "My New App" --no-deps

Using ionic init

If an app was created in a way other than ionic start, for example by using a prebuilt template, use ionic init to register the existing app with the multi-app project.

Make sure the app doesn't have an existing ionic.config.json.

$ cd apps/existing-app/
$ ionic init



Normally, the CLI runs a hard-coded set of commands based on the project type. For example, the standard web asset build for Angular projects is ng run app:build. The web asset build can be overridden and ionic build can continue to be used by utilizing the ionic:build npm script. Similarly, the dev server can be overridden by using the ionic:serve npm script.

Pay close attention to the flags supplied to the script by the Ionic CLI. Irregularities may occur if options are not respected, especially for livereload on devices.


Command options can be expressed with environment variables. They are normally set with --opt=value syntax. The naming of these environment variables follows a pattern: start with IONIC_CMDOPTS_, add the command name (replacing any spaces with underscores), add the option name (replacing any hyphens with underscores), and then uppercase everything. Boolean flags (command-line options that don't take a value) can be set to 1 or 0. Strip the --no- prefix in boolean flags, if it exists (--no-open in ionic serve can be expressed with IONIC_CMDOPTS_SERVE_OPEN=0, for example).

For example, the command options in ionic cordova run ios -lc --livereload-port=1234 --host= can also be expressed with this series of environment variables:


If these variables are set in the environment, ionic cordova build ios will use new defaults for its options.


CLIからIonicに使用状況データが送信されるため、操作性が向上します。この機能を無効にするには、ionic config set-g telemetry falseを実行してください。