App Builder Application Tooling Lifecycle Event Hooks

Hooks can be defined to run before, after, or in place of many app plug-in commands in the app.config.yaml or ext.config.yaml file of your app.

Command support

aio app run supports:

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hooks:
  pre-app-run: echo pre-app-run
  post-app-run: echo post-app-run
  pre-app-build: echo pre-app-build
  post-app-build: echo post-app-build
  pre-app-deploy: echo pre-app-deploy
  post-app-deploy: echo post-app-deploy
  build-actions: echo build-actions
  deploy-actions: echo deploy-actions
  build-static: echo build-static
  serve-static: echo serve-static
  pre-app-undeploy: echo pre-app-undeploy
  post-app-undeploy: echo post-app-undeploy
  undeploy-actions: echo undeploy-actions
  undeploy-static: echo undeploy-static
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hooks:
  pre-app-run: echo pre-app-run
  post-app-run: echo post-app-run
  pre-app-build: echo pre-app-build
  post-app-build: echo post-app-build
  pre-app-deploy: echo pre-app-deploy
  post-app-deploy: echo post-app-deploy
  build-actions: echo build-actions
  deploy-actions: echo deploy-actions
  build-static: echo build-static
  serve-static: echo serve-static
  pre-app-undeploy: echo pre-app-undeploy
  post-app-undeploy: echo post-app-undeploy
  undeploy-actions: echo undeploy-actions
  undeploy-static: echo undeploy-static

aio app build supports:

Copy
hooks:
  pre-app-build: echo pre-app-build
  post-app-build: echo post-app-build
  build-actions: echo build-actions
  build-static: echo build-static
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hooks:
  pre-app-build: echo pre-app-build
  post-app-build: echo post-app-build
  build-actions: echo build-actions
  build-static: echo build-static

aio app deploy supports:

Copy
hooks:
  pre-app-build: echo pre-app-build
  post-app-build: echo post-app-build
  pre-app-deploy: echo pre-app-deploy
  post-app-deploy: echo post-app-deploy
  build-actions: echo build-actions
  build-static: echo build-static
  deploy-actions: echo deploy-actions
  deploy-static: echo deploy-static
Copied to your clipboard
hooks:
  pre-app-build: echo pre-app-build
  post-app-build: echo post-app-build
  pre-app-deploy: echo pre-app-deploy
  post-app-deploy: echo post-app-deploy
  build-actions: echo build-actions
  build-static: echo build-static
  deploy-actions: echo deploy-actions
  deploy-static: echo deploy-static

aio app undeploy supports:

Copy
hooks:
  pre-app-undeploy: echo pre-app-undeploy
  post-app-undeploy: echo post-app-undeploy
  undeploy-actions: echo undeploy-actions
  undeploy-static: echo undeploy-static
Copied to your clipboard
hooks:
  pre-app-undeploy: echo pre-app-undeploy
  post-app-undeploy: echo post-app-undeploy
  undeploy-actions: echo undeploy-actions
  undeploy-static: echo undeploy-static

aio app test supports:

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hooks:
  test: echo this is your custom test runner
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hooks:
  test: echo this is your custom test runner

aio app pack supports:

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hooks: 
  pre-pack: echo this is before packaging
  post-pack: echo this is after packaging
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hooks: 
  pre-pack: echo this is before packaging
  post-pack: echo this is after packaging

Use cases

• aio app run hooks manage local development tooling not managed by flows included with App Builder

• aio app build build-static and build-actions hooks:

  • Build actions to include static files with action zipfiles, for example, templates in server-side rendering

  • Build web assets with different bundlers and configurations, for example webpack

• aio app deploy deploy-static and deploy-actions hooks support additional deployment steps, for example to deploy to multiple servers or locations

• aio app undeploy undeploy-static and undeploy-actions hooks support additional un-deployment steps, for example to undeploy from multiple servers or locations

• aio app test test hooks support custom test runners for apps and extensions

Using JavaScript files

You can specify a JavaScript file that contains your hook code. The file must export a function.

app.config.yaml

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hooks:
  post-app-deploy: ./hooks/post-app-deploy.js
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hooks:
  post-app-deploy: ./hooks/post-app-deploy.js

./hooks/post-app-deploy.js

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module.exports = () => {
    console.log("Post app deploy hook")
}
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module.exports = () => {
    console.log("Post app deploy hook")
}

Legacy App with no extensions

Add a hooks key in the app.config.yaml file under the application key in the root of your app. For example:

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application:
  hooks:
    pre-app-run: echo pre-app-run
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application:
  hooks:
    pre-app-run: echo pre-app-run

If you add extensions to a standalone app using aio app add extension, app.config.yaml hooks will always run first, followed by extension hooks in each ext.config.yaml file.

App with extensions

In the app extension folder, typically at src/EXTENSION_NAME, find the ext.config.yaml file and add a hooks key. For example:

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hooks:
  pre-app-run: echo pre-app-run
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hooks:
  pre-app-run: echo pre-app-run

App-Hooks flow

These diagrams show how custom hooks are run, built, deployed, and undeployed within applications by commands:

Next steps

Return to Architecture Overview.

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Last updated 4/30/2025

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