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Use the JavaScript library for Node.js tools, simulators, gateways, and service integrations that need to interact with firmngin device or platform APIs.

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Use this library for

  • Device simulators.
  • Gateway processes that bridge non-MQTT devices.
  • Your own tools that read device state.
  • Automation helpers that need API access.

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Security note

Do not ship backend API tokens to browser code. Browser UI should call the firmngin backend through authenticated user sessions, not through service tokens embedded in JavaScript bundles.

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Basic client setup

Create an API token in Dashboard → Integrations and keep it in server-side code or environment configuration only. See the API reference for every endpoint.

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Standard errors

Always prefer the standard error and message fields when displaying API errors.