Lesson 3: Managing Application Logs

Logging is a useful add-on for debugging apps during development as well as at runtime. Both App Builder SDK and CLI provide capabilities for Developers to log and retrieve information and data from their apps.

In our sample app, logger is used throughout the hello action. It is provided by the App Builder's core Logging library:

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const logger = Core.Logger('main', { level: params.LOG_LEVEL || 'info' })
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const logger = Core.Logger('main', { level: params.LOG_LEVEL || 'info' })

You can control the log level by setting LOG_LEVEL input in the manifest.yml file.

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inputs:
  LOG_LEVEL: debug
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inputs:
  LOG_LEVEL: debug

Please refer to the App Builder's core Logging library to learn more about using logger in your app. If you need more high-level information on this topic, review Managing logs in App Builder Apps.

Last updated 4/30/2025

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